bis-2-chloroisopropyl ether (C6H12Cl2O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. bis-2-chloroisopropyl ether Methyl tert-butyl ether (MTBE) (C5H12O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methyl tert-butyl ether (MTBE) Added to support Critical Zone Observatory (CZO) data use cases. Cation exchange capacity (CEC) is a measure of the total negative charges within the soil that adsorb plant nutrient cations such as calcium (Ca2+), magnesium (Mg2+) and potassium (K+). As such, the CEC is a property of a soil that describes its capacity to supply nutrient cations to the soil solution for plant uptake. http://extension.uga.edu/publications/detail.html?number=C1040&title=Cation%20Exchange%20Capacity%20and%20Base%20Saturation Cation exchange capacity (CEC) Copper, particulate Particulate copper (Cu) in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Germanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature. Germanium Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Germanium Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Scandium A chemical element with symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been classified as a rare-earth element, together with yttrium and the lanthanides. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia. Scandium Wikipedia Endosulfan II (beta) Endosulfan II (beta) (C9H6Cl6O3S) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Di-n-octyl phthalate (C24H38O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Di-n-octyl phthalate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Recreational water use, for example golf courses. Water Use, Recreation Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Samarium Dissolved Samarium (Sm). "Dissolved " indicates a the measurement was made on a filtered sample. Samarium, dissolved Wikipedia Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (Group 2, or alkaline earth metals) of the periodic table: they each have the same electron configuration in their outer electron shell producing a similar crystal structure. Magnesium https://en.wikipedia.org/wiki/Magnesium Wikipedia Lutetium Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Lutetium is a chemical element with symbol Lu and atomic number 71. It is a silvery white metal, which resists corrosion in dry air, but not in moist air. Lutetium is the last element in the lanthanide series, and it is traditionally counted among the rare earths. https://en.wikipedia.org/wiki/Lutetium 2,6-Dichlorophenol 2,6-Dichlorophenol (C6H4Cl2O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The phytoplankton pigment Canthaxanthin Canthaxanthin Dissolved Zircon (Zr) Zircon, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Mevinphos (C7H13O6P) Mevinphos Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Thorium-228 An isotope of thorium in the thorium-232 decay series Gross carbon dioxide production by all organisms in an ecosystem. Ecosystem respiration is the sum of all respiration occurring by the living organisms in a specific ecosystem. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Respiration, ecosystem Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Relative humidity Relative humidity C32 alkane, normal (i.e. straight-chain) isomer, common name: n-Dotriacontane, formula : C32H66, Synonym: dicetyl n-alkane, C32 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbazole (C12H9N) Carbazole Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Canopy height Forest canopy density and height are used as variables in a number of environmental applications, such as biomass estimation, vegetation coverage, and biodiversity determination. Canopy density, or canopy cover, is the ratio of vegetation to ground as seen from the air. Canopy height measures how far above the ground the top of the canopy is. Lidar can be used to determine both of these variables. Added to support Critical Zone Observatory (CZO) data use cases. http://desktop.arcgis.com/en/arcmap/10.3/manage-data/las-dataset/lidar-solutions-estimating-forest-density-and-height.htm delta-13C of CH4 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isotope 13C of methane Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia The material loses energy and the emitted photon has a higher energy than the absorbed photon. This outcome is labeled anti-Stokes Raman scattering. Scatter, anti-stokes https://en.wikipedia.org/wiki/Raman_scattering#Stokes_and_anti-Stokes Ammonium (NH4) flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ammonium flux Hydroxide Alkalinity Alkalinity, hydroxide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ruthenium-106 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The most stable isotope of ruthenium with a half life of 373.59 days. Water pumped by commercial, industrial users. Water Use, Commercial + Industrial + Power Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Mercury, dissolved Dissolved Mercury (Hg). For chemical terms, dissolved indicates a filtered sample. Wikipedia Goethite, FeO(OH), is an iron-bearing hydroxide mineral of the diaspore group. It is found in soil and other low-temperature environments. Goethite https://en.wikipedia.org/wiki/Goethite Added to support Critical Zone Observatory (CZO) data use cases. Loss on ignition Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Loss on ignition is a test used in inorganic analytical chemistry, particularly in the analysis of minerals. It consists of strongly heating ("igniting") a sample of the material at a specified temperature, allowing volatile substances to escape, until its mass ceases to change. https://en.wikipedia.org/wiki/Loss_on_ignition 4-Methylchrysene (C19H14), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4-Methylchrysene Chlorobenzene (C6H5Cl) Chlorobenzene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hydrogen Hydrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Propane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Propane Ultraviolet Radation Index See http://support.bentham.co.uk/support/solutions/articles/5000619299-erythemal-radiant-exposure-and-uv-index The global solar UV index (UVI) was developed as an easy-to-understand measure of biologically effective UV radiation with a view to promote public awareness of the risks of UV radiation exposure and sun protection. In the initial work done on UVI in Canada, a typical midday summer erythemal irradiance of 250 mW.m-2 was found leading to the (arbitrary) definition of one UV index equal to an erythemally weighted irradiance of 25 mW.m-2. This gives a typical range of UVI 0 to 11+. Biota https://en.wikipedia.org/wiki/Titanium Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Total titanium (Ti) Titanium, total Precipitation such as rainfall. Should not be confused with settling. Precipitation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Reduction potential Oxidation-reduction potential Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Iron, ferric Ferric Iron (Fe+3) Butane Butane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Baseflow The portion of streamflow (discharge) that is supplied by groundwater sources. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Clinoptilolite Clinoptilolite Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Clinoptilolite is a natural zeolite comprising a microporous arrangement of silica and alumina tetrahedra. It has the complex formula: (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12H2O. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pentachlorobenzene (C6HCl5) Pentachlorobenzene The time at which a sensor produces output Time Stamp Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. NRCS USDA See description at http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054253 USDA particle size distribution category. 0.002 to 0.5 mm diameter fine earth particles. Silt Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hexachlorobenzene Hexachlorobenzene (C6Cl6) Fluoride Fluoride (F-) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Strontium Wikipedia Strontium Added to support Critical Zone Observatory (CZO) data use cases. Strontium is the chemical element with symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly chemically reactive. The metal forms a dark oxide layer when it is exposed to air. Strontium has physical and chemical properties similar to those of its two vertical neighbors in the periodic table, calcium and barium. It occurs naturally mainly in the minerals celestine and strontianite, and is mostly mined from these. While natural strontium is stable, the synthetic 90Sr isotope is radioactive and is one of the most dangerous components of nuclear fallout, as strontium is absorbed by the body in a similar manner to calcium. Natural stable strontium, on the other hand, is not hazardous to health. Wikipedia Neodymium is a chemical element with symbol Nd and atomic number 60. It is a soft silvery metal that tarnishes in air. Neodymium was discovered in 1885 by the Austrian chemist Carl Auer von Welsbach. Neodymium https://en.wikipedia.org/wiki/Neodymium Added to support Critical Zone Observatory (CZO) data use cases. Alluvium depth Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Alluvium Alluvium is loose, unconsolidated (not cemented together into a solid rock) soil or sediment that has been eroded, reshaped by water in some form, and redeposited in a non-marine setting. Alluvium is typically made up of a variety of materials, including fine particles of silt and clay and larger particles of sand and gravel. When this loose alluvial material is deposited or cemented into a lithological unit, or lithified, it is called an alluvial deposit. Wikipedia https://en.wikipedia.org/wiki/Augelite Augelite Augelite is an aluminium phosphate mineral with formula: Al2(PO4)(OH)3. The shade varies from colorless to white, yellow or rose. Its crystal system is monoclinic Added to support Critical Zone Observatory (CZO) data use cases. delta-13C of CO2 Isotope 13C of carbon dioxide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Mica https://en.wikipedia.org/wiki/Mica The mica group of sheet silicate minerals includes several closely related materials having nearly perfect basal cleavage. All are monoclinic, with a tendency towards pseudohexagonal crystals, and are similar in chemical composition. https://en.wikipedia.org/wiki/Holmium Holmium Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Holmium is a chemical element with symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare-earth element. Holmium was discovered by Swedish chemist Per Theodor Cleve. Endrin aldehyde Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Endrin aldehyde (C12H8Cl6O) Temperature Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Temperature n-alkane, C15 C15 alkane, normal (i.e. straight-chain) isomer, common name: n-Pentadecane, formula : C15H32 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Liver, mass Mass of the sample of liver tissue used for analyses Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hail is a form of solid precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailstone. https://en.wikipedia.org/wiki/Hail Wikipedia Hail Added to support Critical Zone Observatory (CZO) data use cases. Acenaphthylene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acenaphthylene (C12H8), a polycyclic aromatic hydrocarbon (PAH) Added to support Critical Zone Observatory (CZO) data use cases. Dysprosium Dysprosium is a chemical element with symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster. Dysprosium is never found in nature as a free element, though it is found in various minerals, such as xenotime. Naturally occurring dysprosium is composed of seven isotopes, the most abundant of which is 164Dy. Wikipedia https://en.wikipedia.org/wiki/Dysprosium Cadmium, distribution coefficient Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ratio of concentrations of cadmium in two phases in equilibrium with each other. Phases must be specified. Lactic Acid Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Lactic Acid (C3H6O3) 2-Chlorophenol (C6H5ClO) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2-Chlorophenol https://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/microbiological-assay Added to support Critical Zone Observatory (CZO) data use cases. Assay for microbial activity using acid phosphatase Activity, acid phosphatase Dibenzothiophene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dibenzothiophene (C12H8S), a polycyclic aromatic hydrocarbon (PAH) Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia https://en.wikipedia.org/wiki/Cloud_cover Cloud cover (also known as cloudiness, cloudage, or cloud amount) refers to the fraction of the sky obscured by clouds when observed from a particular location. Cloud cover LSI Langelier Saturation Index is an indicator of the degree of saturation of water with respect to calcium carbonate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phenolics, total Total Phenolics Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Electric Current A flow of electric charge Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element. Its hydroxide, known in pre-modern times as baryta, does not occur as a mineral, but can be prepared by heating barium carbonate. https://en.wikipedia.org/wiki/Barium Wikipedia Barium Added to support Critical Zone Observatory (CZO) data use cases. C31 alkane,normal (i.e. straight-chain) isomer, common name: n-Hentriacontane, formula : C31H64, Synonym: untriacontane n-alkane, C31 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Styrene Styrene (C8H8) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Net heat flux Outgoing rate of heat energy transfer minus the incoming rate of heat energy transfer through a given area Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethylene, dissolved Dissolved ethylene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total dissolved phosphorus Phosphorus, total dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Drag or trangential force per unit area exerted on a surface by the adjacent layer of moving air Wind stress Water depth averaged over a channel cross-section or water body. Averaging method to be specified in methods. Water depth, averaged Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phosphorus, orthophosphate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Orthophosphate Phosphorus https://en.wikipedia.org/wiki/Caesium Wikipedia Cesium Caesium (IUPAC spelling) or cesium (American spelling) is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28.5 °C (83.3 °F), which makes it one of only five elemental metals that are liquid at or near room temperature. Added to support Critical Zone Observatory (CZO) data use cases. Cytochrome P450, family 1, subfamily A, polypeptide 1, delta cycle threshold Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Delta cycle threshold for Cytochrome P450, family 1, subfamily A, polypeptide 1 (cyp1a1). Cycle threshold is the PCR cycle number at which the fluorescent signal of the gene being amplified crosses the set threshold. Delta cycle threshold for cyp1a1 is the difference between the cycle threshold (Ct) of cyp1a1 gene expression and the cycle threshold (Ct) for the gene expression of the reference gene (e.g., beta-actin). Dissolved Kjeldahl (organic nitrogen + ammonia (NH3) + ammonium (NH4))nitrogen Nitrogen, dissolved Kjeldahl Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4,6-Dinitro-2-methylphenol (C7H6N2O5) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4,6-Dinitro-2-methylphenol Dibenz(a,h)anthracene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dibenz(a,h)anthracene (C22H14), a polycyclic aromatic hydrocarbon (PAH) Density Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Density 2,4-Dinitrophenol (C6H4N2O5) 2,4-Dinitrophenol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia https://en.wikipedia.org/wiki/Electrical_resistance_and_conductance Resistivity, electrical The electrical resistance of an object is a measure of its opposition to the flow of electric current. The inverse quantity is electrical conductance, and is the ease with which an electric current passes. Added to support Critical Zone Observatory (CZO) data use cases. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Escherichia coli E-coli Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hardness, Magnesium Hardness of magnesium Wikipedia Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first. The name nitrogène was suggested by French chemist Jean-Antoine-Claude Chaptal in 1790, when it was found that nitrogen was present in nitric acid and nitrates. Antoine Lavoisier suggested instead the name azote, from the Greek άζωτικός "no life", as it is an asphyxiant gas; this name is instead used in many languages, such as French, Russian, and Turkish, and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds. https://en.wikipedia.org/wiki/Nitrogen Added to support Critical Zone Observatory (CZO) data use cases. Nitrogen Nitrogen, total kjeldahl Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Kjeldahl Nitrogen (Ammonia+Organic) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, long-chain long-chain alkanes, normal (i.e. straight chain) isomer (isomer range of alkanes measured should be specified) Bromodichloromethane Bromodichloromethane (CHBrCl2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Butylbenzylphthalate (C19H20O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Butylbenzylphthalate Ground heat flux Ground heat flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia https://en.wikipedia.org/wiki/Potassium Potassium Potassium is a chemical element with symbol K and atomic number 19. It was first isolated from potash, the ashes of plants, from which its name derives. In the periodic table, potassium is one of the alkali metals. All of the alkali metals have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge – a cation, which combines with anions to form salts. Potassium in nature occurs only in ionic salts. Elemental potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and reacts vigorously with water, generating sufficient heat to ignite hydrogen emitted in the reaction, and burning with a lilac-colored flame. It is found dissolved in sea water (which is 0.04% potassium by weight), and is part of many minerals. Curvature Added to support Critical Zone Observatory (CZO) data use cases. http://desktop.arcgis.com/en/arcmap/10.3/manage-data/raster-and-images/curvature-function.htm Curvature of a DEM measures the shape or curvature of the slope. A part of a surface can be concave or convex; you can tell that by looking at the curvature value. The curvature is calculated by computing the second derivative of the surface. Borehole log material classification Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Classification of material encountered by a driller at various depths during the drilling of a well and recorded in the borehole log. Suaeda maritima coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Areal coverage of the plant Suaeda maritima Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2-Butanone (MEK) (C4H8O) 2-Butanone (MEK) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hexachlorocyclopentadiene (C5Cl6) Hexachlorocyclopentadiene Pentachlorophenol Pentachlorophenol (C6HCl5O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,4-Dichlorophenol (C6H4Cl2O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,4-Dichlorophenol Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Height Height is measure of vertical distance, either vertical extent or vertical position Wikipedia Height Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 3-Nitroaniline 3-Nitroaniline (C6H6N2O2) Boron, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Boron (B) Added to support Critical Zone Observatory (CZO) data use cases. The alkali feldspar group are those feldspar minerals rich in the alkali elements like potassium and sodium. The alkali feldspars include albite, anorthoclase, microcline, orthoclase and sanidine. Wikipedia Alkali feldspar https://en.wikipedia.org/wiki/Alkali_feldspar Hot Acidity Acidity, hot Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzene (C6H6) Benzene 4-Bromophenylphenyl ether (C12H9BrO) 4-Bromophenylphenyl ether Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Water depth Water depth is the distance between the water surface and the bottom of the water body at a specific location specified by the site location and offset. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Diisopropyl Ether Diisopropyl Ether (C6H14O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Incoming radiation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radiation, incoming Tert-Amyl Methyl Ether Tert-Amyl Methyl Ether (C6H14O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 9,10-Dimethylanthracene (C16H14), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 9,10-Dimethylanthracene Nitrobenzene (C6H5NO2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrobenzene Gadolinium is a chemical element with symbol Gd and atomic number 64. Gadolinium is a silvery-white, malleable, and ductile rare earth metal. It is found in nature only in oxidized form, and even when separated, it usually has impurities of the other rare earths. Gadolinium https://en.wikipedia.org/wiki/Gadolinium Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Count, areal Counts per area Added to support Critical Zone Observatory (CZO) data use cases. https://www.nationalgeographic.org/encyclopedia/density/ Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total (Dissolved+Particulate) Carbon Carbon, total Anthracene (C14H10), a polycyclic aromatic hydrocarbon (PAH) Anthracene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dimethylphenanthrene (C16H14) Dimethylphenanthrene Mineral Acidity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acidity, mineral acidity https://en.wikipedia.org/wiki/Zirconium Zirconium Zirconium is a chemical element with symbol Zr and atomic number 40. The name zirconium is taken from the name of the mineral zircon, the most important source of zirconium. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Erosion rate In earth science, erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location (not to be confused with weathering which involves no movement). Added to support Critical Zone Observatory (CZO) data use cases. 1,3-Dinitrobenzene (C6H4N2O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,3-Dinitrobenzene Diethylene glycol (C4H10O3) Diethylene glycol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Electrical conductivity Electrical conductivity 1,2-Dichloropropane (C3H6Cl2) 1,2-Dichloropropane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved orthophosphate phosphorus Phosphorus, orthophosphate dissolved https://en.wikipedia.org/wiki/Raman_scattering#Stokes_and_anti-Stokes Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Scatter, Stokes The material absorbs energy and the emitted photon has a lower energy than the incident photon. This outcome is labeled Stokes Raman scattering in honor of George Stokes who showed in 1852 that fluorescence is due to light emission at longer wavelength (now known to correspond to lower energy) than the absorbed incident light. Added to support Critical Zone Observatory (CZO) data use cases. Dissolved Praseodymium (Pr). "Dissolved " indicates a the measurement was made on a filtered sample. Praseodymium, dissolved https://en.wikipedia.org/wiki/Praseodymium Wikipedia Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Iron, particulate Particulate iron (Fe) in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acetophenone Acetophenone (C6H5C(O)CH3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 15 Nitrogen, Delta Nitrogen Nitrogen-15 Incoming Ultraviolet A Radiation Radiation, incoming UV-A Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A categorical variable marking the attachment of a coupler or data shuttle to a logger. This is used for quality control. Data shuttle attached Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon, total inorganic Total (Dissolved+Particulate) Inorganic Carbon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Urea Urea ((NH2)2CO) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phosphorodithioic acid Phosphorodithioic acid (C10N12N3O3PS2) Added to support Critical Zone Observatory (CZO) data use cases. Topographic wetness index (TWI), also known as the compound topographic index (CTI), is a steady state wetness index. It is commonly used to quantify topographic control on hydrological processes. Wikipedia Topographic Wetness Index (TWI) https://en.wikipedia.org/wiki/Topographic_wetness_index Activity, beta-N-acetyl glucosaminidase Assay for microbial activity using beta-N-acetyl glucosaminidase Added to support Critical Zone Observatory (CZO) data use cases. https://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/microbiological-assay The combination effect of heat and humidity on the temperature felt by people. Heat index Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. N-Nitrosodiphenylamine (C12H10N2O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. N-Nitrosodiphenylamine https://en.wikipedia.org/wiki/Isotopes_of_lead https://en.wikipedia.org/wiki/Stable_isotope_ratio Added to support Critical Zone Observatory (CZO) data use cases. Stable isotope of lead. The term stable isotope has a meaning similar to stable nuclide, but is preferably used when speaking of nuclides of a specific element. Hence, the plural form stable isotopes usually refers to isotopes of the same element. The relative abundance of such stable isotopes can be measured experimentally (isotope analysis), yielding an isotope ratio that can be used as a research tool. Wikipedia Lead-208 Added to support Critical Zone Observatory (CZO) data use cases. Assay for microbial activity using beta-glucosidase Activity, beta-glucosidase https://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/microbiological-assay Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hardness of calcium Hardness, Calcium Acidity, total acidity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total acidity Position Position of an element that interacts with water such as reservoir gates Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Orthoclase, or orthoclase feldspar (endmember formula KAlSi3O8), is an important tectosilicate mineral which forms igneous rock. The name is from the Ancient Greek for "straight fracture," because its two cleavage planes are at right angles to each other. It is a type of potassium feldspar, also known as K-feldspar. The gem known as moonstone (see below) is largely composed of orthoclase. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Orthoclase https://en.wikipedia.org/wiki/Orthoclase Chlorophyll Fluorescence Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chlorophyll fluorescence Added to support Critical Zone Observatory (CZO) data use cases. Soil organic matter (SOM) Wikipedia Soil organic matter (SOM) is the organic matter component of soil, consisting of plant and animal residues at various stages of decomposition, cells and tissues of soil organisms, and substances synthesized by soil organisms. https://en.wikipedia.org/wiki/Soil_organic_matter Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Xylenes, total Total xylenes: C6H4(CH3)2 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Data shuttle detached A categorical variable marking the detatchment of a coupler or data shuttle to a logger. This is used for quality control. Wikipedia https://en.wikipedia.org/wiki/Biomass Added to support Critical Zone Observatory (CZO) data use cases. Total dry mass of soil bacterial deoxyribonucleic acid (DNA) per unit mass of soil Biomass, soil bacterial deoxyribonucleic acid (DNA) Erbium Erbium is a chemical element with symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden, from which it got its name. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia https://en.wikipedia.org/wiki/Erbium Bulk density The mass of many particles of the material divided by the total volume they occupy. The total volume includes particle volume, inter-particle void volume and internal pore volume. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Instrument status code Code value recorded by instrument indicating some information regarding the status of the instrument Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Silicate. Chemical compound containing silicon, oxygen, and one or more metals, e.g., aluminum, barium, beryllium, calcium, iron, magnesium, manganese, potassium, sodium, or zirconium. Silicate Cobalt Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Cobalt Barium, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Barium (Ba) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sulfur dioxide Sulfur dioxide (SO2) pH Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. pH is the measure of the acidity or alkalinity of a solution. pH is formally a measure of the activity of dissolved hydrogen ions (H+). Solutions in which the concentration of H+ exceeds that of OH- have a pH value lower than 7.0 and are known as acids. Calcium, total Total Calcium (Ca) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dinoflagellates The chlorophyll a concentration contributed by Dinoflagellates Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Transient species coverage Areal coverage of transient species Dissolved Cobalt (Co) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Cobalt, dissolved Michaelis constant Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Michaelis%E2%80%93Menten_kinetics Wikipedia The Michaelis constant is the substrate concentration at which the reaction rate is half of Vmax. Vmax represents the maximum rate achieved by the system, at saturating substrate concentration Dissolved nitrite (NO2) + nitrate (NO3) nitrogen Nitrogen, dissolved nitrite (NO2) + nitrate (NO3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Color in quantified in color units Color Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chloroform (CHCl3), a haloform Chloroform Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Xylan_1,4-b-xylosidase Xylosidase Chemistry Wikipedia An enzyme with system name 4-beta-D-xylan xylohydrolase.[1][2] This enzyme catalyses the following chemical reaction: Hydrolysis of (1->4)-beta-D-xylans, to remove successive D-xylose residues from the non-reducing termini. Silver, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Silver (Ag). For chemical terms, total represents an unfiltered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon to nitrogen (C:N) mass ratio Carbon to nitrogen mass ratio Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 3-day Carbonaceous Biochemical Oxygen Demand BOD3, carbonaceous Dissolved Aluminum (Al) Aluminum, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total dry mass of plant material per unit area or volume Added to support Critical Zone Observatory (CZO) data use cases. Biomass, vegetation https://en.wikipedia.org/wiki/Biomass Wikipedia Radiation, outgoing longwave Outgoing Longwave Radiation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia Gallium Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Gallium Gallium is a chemical element with symbol Ga and atomic number 31. It is in group 13 of the periodic table, and thus has similarities to the other metals of the group, aluminium, indium, and thallium. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Logger stopped A categorical variable indicating that a logger was told to stop recording data. This is used for quality control. Added to support Critical Zone Observatory (CZO) data use cases. For soil resources, experience has shown that a natural system approach to classification, i.e. grouping soils by their intrinsic property (soil morphology), behaviour, or genesis, results in classes that can be interpreted for many diverse uses. Differing concepts of pedogenesis, and differences in the significance of morphological features to various land uses can affect the classification approach. Soil classification https://en.wikipedia.org/wiki/Soil_classification Wikipedia Ozone (O3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ozone Pheophytin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pheophytin (Chlorophyll which has lost the central Mg ion) is a degradation product of Chlorophyll https://en.wikipedia.org/wiki/Pheophytin Added to support Critical Zone Observatory (CZO) data use cases. Pheophytin or phaeophytin (abbreviated Pheo) is a chemical compound that serves as the first electron carrier intermediate in the electron transfer pathway of Photosystem II (PS II) in plants, and the photosynthetic reaction center (RC P870) found in purple bacteria. In both PS II and RC P870, light drives electrons from the reaction center through pheophytin, which then passes the electrons to a quinone (QA) in RC P870 and RC P680. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. X-ray crystallography (XRC) is a technique used for determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions. Diffraction, X-ray (XRD) https://en.wikipedia.org/wiki/X-ray_crystallography#X-ray_diffraction Wikipedia 4-Methyldibenzothiophene (C13H10S), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4-Methyldibenzothiophene Incoming Ultraviolet B Radiation Radiation, incoming UV-B Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Organic Kjeldahl (organic nitrogen + ammonia (NH3) + ammonium (NH4)) nitrogen Nitrogen, organic kjeldahl Dissolved Copper (Cu) Copper, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Silicon (Si) Silicon, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia Received signal strength indication Level https://en.wikipedia.org/wiki/Received_signal_strength_indication In telecommunications, received signal strength indicator (RSSI) is a measurement of the power present in a received radio signal. Suspended Sediment Sediment, suspended Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Polyphosphate Phosphorus Phosphorus, polyphosphate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,2,3-Trimethylbenzene (C9H12) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,2,3-Trimethylbenzene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. THSW Index The THSW Index uses temperature, humidity, solar radiation, and wind speed to calculate an apparent temperature. Iodide, dissolved Dissolved Iodide (I-) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Outgoing Shortwave Radiation Radiation, outgoing shortwave Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wind chill Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The effect of wind on the temperature felt on human skin. delta-13C of C2H6 Isotope 13C of ethane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbaryl (C12H11NO2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbaryl The concentration of colored dissolved organic matter (humic substances) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Colored dissolved organic matter Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oxygen flux Oxygen (O2) flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Cyanide Cyanide (CN) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oxygen-18 18 O, Delta O Dissolved Molybdenum (Mo). "Dissolved " indicates a the measurement was made on a filtered sample. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Molybdenum, dissolved https://en.wikipedia.org/wiki/Molybdenum Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phenanthrene (C14H10), a polycyclic aromatic hydrocarbon (PAH) Phenanthrene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pressure Pressure, absolute Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methane, dissolved Dissolved Methane (CH4) Alkalinity is the capacity of water to resist changes in pH that would make the water more acidic. It should not be confused with basicity which is an absolute measurement on the pH scale. Alkalinity is the strength of a buffer solution composed of weak acids and their conjugate bases. It is measured by titrating the solution with a monoprotic acid such as HCl until its pH changes abruptly, or it reaches a known endpoint where that happens. Alkalinity is expressed in units of meq/L (milliequivalents per liter), which corresponds to the amount of monoprotic acid added as a titrant in millimoles per liter. Added to support Critical Zone Observatory (CZO) data use cases. Alkalinity https://en.wikipedia.org/wiki/Alkalinity Wikipedia 1,3-Dichlorobenzene 1,3-Dichlorobenzene (C6H4Cl2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, nitrate (NO3) Nitrate (NO3) Nitrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oxygen, dissolved, transducer signal Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved oxygen, raw data from sensor Momentum flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Momentum flux Dimethyl Phthalate Dimethyl Phthalate (C10H10O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved thorium. For chemical terms, dissolved indicates a filtered sample. Thorium, dissolved Chloromethane Chloromethane (CH3Cl) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Cadmium, particulate Particulate cadmium (Cd) in suspension Biota See http://support.bentham.co.uk/support/solutions/articles/5000619299-erythemal-radiant-exposure-and-uv-index A measure of the ability of ultraviolet radiation, as a function of wavelength, to produce just perceptible erythema in human skin. Ultraviolet Radiation Dose Speed of sound in the medium sampled Speed of sound Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Aluminum, total Aluminum (Al). Total indicates was measured on a whole water sample. Net Radiation Radiation, net Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Helium (He) Helium, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chloroethene (C2H3Cl) Chloroethene Tetrahydrofuran (C4H8O) Tetrahydrofuran Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Arsenic, dissolved Dissolved Arsenic. For chemical terms, dissolved represents a filtered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hydrogen-2, stable isotope ratio delta Difference in the 2H:1H ratio between the sample and standard Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Lead, total Total Lead (Pb). For chemical terms, total indicates an unfiltered sample. 2,2-dichlorovinyl dimethyl phosphate (C4H7Cl2O4P) 2,2-dichlorovinyl dimethyl phosphate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Temperature, sensor Temperature, raw data from sensor Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Erbium (Er). "Dissolved " indicates a the measurement was made on a filtered sample. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Erbium, dissolved https://en.wikipedia.org/wiki/Erbium Tetramethylnaphthalene (C10H4(CH3)4), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Tetramethylnaphthalene Total Phosphorus Phosphorus, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Tetrachloroethene (C2Cl4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Tetrachloroethene 1,2,4-Trichlorobenzene (C6H3Cl3) 1,2,4-Trichlorobenzene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Iron sulfide Iron sulfide (FeS2) Spartina spartinea coverage Areal coverage of the plant Spartina spartinea Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acetate Acetate Count of unique taxa. A taxon (plural: taxa) is a group of one (or more) populations of organism(s), which is judged to be a unit. Taxa count Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total alkane, normal (i.e. straight chain) isomer (isomer range of alkanes measured should be specified) n-alkane, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Photosynthetic photon flux density (PPFD) https://en.wikipedia.org/wiki/Photosynthetically_active_radiation Wikipedia The number of photons per unit time and per unit area in the wavelength band 400 to 700 nm https://en.wikipedia.org/wiki/Soil_respiration Added to support Critical Zone Observatory (CZO) data use cases. Soil respiration Wikipedia Soil respiration refers to the production of carbon dioxide when soil organisms respire. This includes respiration of plant roots, the rhizosphere, microbes and fauna. Radiation, net PAR Net Photosynthetically-Active Radiation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrite (NO2) Nitrogen Nitrogen, nitrite (NO2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A radioactive isotope of carbon which undergoes beta decay Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon-14 Time, elapsed Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Time elapsed since an event occurred Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Aniline (C6H7N) Aniline Thorium is a weakly radioactive metallic chemical element with symbol Th and atomic number 90. Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately hard, malleable, and has a high melting point. https://en.wikipedia.org/wiki/Thorium Thorium (Th) Thorium Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Diallate (cis or trans) Diallate (cis or trans) (C10H17Cl2NOS) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,4,5,8-Tetramethylnaphthalene 1,4,5,8-Tetramethylnaphthalene (C14H16), a polycyclic aromatic hydrocarbon (PAH) 1,4-Dinitrobenzene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,4-Dinitrobenzene (C6H4N2O4) Wikipedia Dysprosium, dissolved https://en.wikipedia.org/wiki/Dysprosium Added to support Critical Zone Observatory (CZO) data use cases. Dissolved dysprosium (Dy). "Dissolved " indicates a the measurement was made on a filtered sample. Chlorine (Cl2) Chlorine Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2-day Carbonaceous Biochemical Oxygen Demand BOD2, carbonaceous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C17 C17 alkane, normal (i.e. straight-chain) isomer, common name: n-Heptadecane, formula : C17H36 Zooplanktonic organisms, non-specific Zooplankton Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethoxyresorufin O-deethylase, activity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethoxyresorufin O-deethylase (EROD) activity 2-Methylnaphthalene (C10H7CH3), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2-Methylnaphthalene Lead is a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and has a relatively low melting point. When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes each conclude a major decay chain of heavier elements. Wikipedia https://en.wikipedia.org/wiki/Lead Added to support Critical Zone Observatory (CZO) data use cases. Lead Visibility Visibility Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isobutyric acid (C4H8O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isobutyric acid 2-Methylphenol (C7H8O) 2-Methylphenol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Mercury, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Mercury (Hg). For chemical terms, total represents an unfiltered sample. Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Mass_fraction_(chemistry) Wikipedia Soil organic matter (SOM) density fractionation Density fraction of Soil organic matter (SOM) in soil. Soil organic matter (SOM) is the organic matter component of soil, consisting of plant and animal residues at various stages of decomposition, cells and tissues of soil organisms, and substances synthesized by soil organisms. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,2,4-Trimethylbenzene 1,2,4-Trimethylbenzene Isophorone (C9H14O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isophorone Wikipedia Antimony is a chemical element with symbol Sb and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony https://en.wikipedia.org/wiki/Antimony Added to support Critical Zone Observatory (CZO) data use cases. Added to support Critical Zone Observatory (CZO) data use cases. Diameter at breast height (DBH) Wikipedia https://en.wikipedia.org/wiki/Diameter_at_breast_height Diameter at breast height, or DBH, is the standard for measuring trees. DBH refers to the tree diameter measured at 4.5 feet above the ground. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Heptachlor epoxide (C10H5Cl7O) Heptachlor epoxide Particulate vanadium (V) in suspension Vanadium, particulate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Effective energy and mass transfer (EEMT) Effective energy and mass transfer (EEMT) couples energy and mass flux to the subsurface in the form of effective precipitation and net primary production in a common energy unit. https://doi.org/10.5194/hess-16-725-2012 Added to support Critical Zone Observatory (CZO) data use cases. Total arsenic (As). Total indicates was measured on a whole water sample. Arsenic, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hydrogen sulfide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hydrogen sulfide (H2S) 1,1,2-Trichloroethane (C2H3Cl3) 1,1,2-Trichloroethane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A radioactive isotope of zirconium with a half-life of 63 days Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Zirconium-95 Alkalinity, carbonate Carbonate Alkalinity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Biomass, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total biomass 2,7-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) 2,7-Dimethylnaphthalene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Cadmium (Cd). For chemical terms, "total" indciates an unfiltered sample. Cadmium, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sensible heat flux Sensible Heat Flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Water vapor concentration Water vapor concentration Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oxygen-18, stable isotope ratio delta Difference in the 18O:16O ratio between the sample and standard Solids, total fixed Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Fixed Solids Chlorophyll c1 and c2 Chlorophyll c1 and c2 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Calcium, dissolved Wikipedia https://en.wikipedia.org/wiki/Calcium Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Calcium is a chemical element with symbol Ca and atomic number 20. An alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant element in Earth's crust and the third most abundant metal, after iron and aluminium. The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium. The name derives from Latin calx "lime", which was obtained from heating limestone. Dissolved Calcium (Ca) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. trans-1,3-Dichloropropene (C3H4Cl2) trans-1,3-Dichloropropene Wikipedia https://en.wikipedia.org/wiki/Crown_closure Added to support Critical Zone Observatory (CZO) data use cases. Crown closure is a term used in forestry. Crown closure and crown cover are two slightly different measures of the forest canopy and that determine the amount of light able to penetrate to the forest floor. Canopy closure 5-day Carbonaceous Biochemical Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. BOD5, carbonaceous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. cis-1,2-Dichloroethene (C2H2Cl2) cis-1,2-Dichloroethene The relative permittivity of a material is its (absolute) permittivity expressed as a ratio relative to the permittivity of vacuum. Permittivity is a material property that affects the Coulomb force between two point charges in the material. Relative permittivity is the factor by which the electric field between the charges is decreased relative to vacuum. Likewise, relative permittivity is the ratio of the capacitance of a capacitor using that material as a dielectric, compared with a similar capacitor that has vacuum as its dielectric. Relative permittivity is also commonly known as dielectric constant, a term deprecated in engineering as well as in chemistry. Dielectric constant Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Relative_permittivity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethylbenzene Ethylbenzene (C8H10) Consumption of oxygen by biological and/or chemical processes Oxygen uptake Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Density of seawater calculated with in situ salinity and temperature, but pressure equal to zero, rather than the in situ pressure, and 1000 kg/m^3 is subtracted. Defined as (S,T)-1000 kg m-3, where (S,T) is the density of a sample of seawater at temperature T and salinity S, measured in kg m-3, at standard atmospheric pressure. Sigma-t Reflectivity https://en.wikipedia.org/wiki/DBZ_(meteorology) Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia dBZ stands for decibel relative to Z. It is a logarithmic dimensionless technical unit used in radar, mostly in weather radar, to compare the equivalent reflectivity factor (Z) of a radar signal reflected off a remote object (in mm6 per m3) to the return of a droplet of rain with a diameter of 1 mm (1 mm6 per m3). It is proportional to the number of drops per unit volume and the sixth power of drops' diameter and is thus used to estimate the rain or snow intensity. Barium, total Total Barium (Ba). For chemical terms, "total" indicates an unfiltered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Titanium, dissolved Dissolved Titanium Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acid phosphatase Phosphatase enzymes are used by soil microorganisms to access organically bound phosphate nutrients. An assay on the rates of activity of these enzymes may be used to ascertain biological demand for phosphates in the soil. Some plant roots, especially cluster roots, exude carboxylates that perform acid phosphatase activity, helping to mobilise phosphorus in nutrient-deficient soils. Chemistry https://en.wikipedia.org/wiki/Acid_phosphatase Wikipedia Fluoranthene Fluoranthene (C16H10), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The depth of water if a snow cover is completely melted, expressed in units of depth, on a corresponding horizontal surface area. Snow water equivalent 1,2-Dinitrobenzene 1,2-Dinitrobenzene (C6H4N2O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Flow rate from well while pumping Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Well flow rate A counter of the number of times the battery voltage dropped below a minimum threshold Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Low battery count Benthos Benthic species Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia Vermiculite Vermiculite is a hydrous phyllosilicate mineral. It undergoes significant expansion when heated. Exfoliation occurs when the mineral is heated sufficiently, and the effect is routinely produced in commercial furnaces. https://en.wikipedia.org/wiki/Vermiculite Added to support Critical Zone Observatory (CZO) data use cases. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon, total organic Total (Dissolved+Particulate) Organic Carbon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Uranium-238 Uranium's most common isotope Tin, dissolved Dissolved tin (Sn). "Dissolved " indicates a the measurement was made on a filtered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Recorder code A code used to identifier a data recorder. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Vegetation is an assemblage of plant species and the ground cover they provide. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Vegetation type https://en.wikipedia.org/wiki/Vegetation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Lithium (Li). For chemical terms, dissolved indicates a filtered sample. Lithium, dissolved Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. Wikipedia https://en.wikipedia.org/wiki/Calcium_oxide Added to support Critical Zone Observatory (CZO) data use cases. Calcium oxide Tetracene (C18H12), a polycyclic aromatic hydrocarbon (PAH), also known as naphthacene or benz[b]anthracene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Tetracene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 9 cis-Neoxanthin The phytoplankton pigment 9 cis-Neoxanthin Sediment, retained on sieve The amount of sediment retained on a sieve in a gradation test Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Discharge Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Discharge Added to support Critical Zone Observatory (CZO) data use cases. A diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere. In more modern usage, the length of a diameter is also called the diameter. In this sense one speaks of the diameter rather than a diameter (which refers to the line itself), because all diameters of a circle or sphere have the same length, this being twice the radius r. Wikipedia Diameter https://en.wikipedia.org/wiki/Diameter Ethylene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethylene (C2H4) Borrichia frutescens Coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Areal coverage of the plant Borrichia frutescens Geologic unit https://www.nrcan.gc.ca/node/9329 Geologic units consists primarily of identifying physiographic units and determining the rock lithology or coarse stratigraphy of exposed units. Added to support Critical Zone Observatory (CZO) data use cases. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Vanadium, total Total vanadium (V). "Total" indicates was measured on a whole water (unfiltered) sample. Incoming Photosynthetically-Active Radiation Radiation, incoming PAR Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methylchrysene Methylchrysene (C19H14) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Monanthochloe littoralis Coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Areal coverage of the plant Monanthochloe littoralis Yttrium, dissolved Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Yttrium Wikipedia Dissolved Yttrium (Y). "Dissolved " indicates a the measurement was made on a filtered sample. Isotope 3H of water Tritium (3H), Delta T of H2O Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Hydraulic conductivity Wikipedia Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soils and rocks, that describes the ease with which a fluid (usually water) can move through pore spaces or fractures. It depends on the intrinsic permeability of the material, the degree of saturation, and on the density and viscosity of the fluid. https://en.wikipedia.org/wiki/Hydraulic_conductivity Permethrin (C21H20Cl2O3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Permethrin Methylfluorene Methylfluorene (C14H12) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The identifying number for a water sampler container. Container number Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Incoming Longwave Radiation Radiation, incoming longwave Bis-(2-ethylhexyl) phthalate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Bis-(2-ethylhexyl) phthalate (C6H4(C8H17COO)2) Diatoxanthin The phytoplankton pigment Diatoxanthin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Bromide, dissolved Dissolved Bromide (Br-) Pyrene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pyrene (C16H10), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Biphenyl ((C6H5)2), a polycyclic aromatic hydrocarbon (PAH), also known as diphenyl or phenylbenzene or 1,1'-biphenyl or lemonene Biphenyl Battery voltage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The battery voltage of a datalogger or sensing system, often recorded as an indicator of data reliability Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Carbon Wikipedia Carbon is a chemical element with symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Three isotopes occur naturally, 12C and 13C being stable, while 14C is a radionuclide, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity. Carbon 4-Chlorophenylphenyl ether (C12H9ClO) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4-Chlorophenylphenyl ether Areal coverage of the plant Batis maritima Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Batis maritima Coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Aroclor-1260 (C12H3Cl7), a PCB mixture Aroclor-1260 TSI Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carlson Trophic State Index is a measurement of eutrophication based on Secchi depth Disulfoton Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Disulfoton (C8H19O2PS3) 1,6-Dimethylnaphthalene 1,6-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. total polycyclic aromatic hydrocarbon (PAH), also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons Polycyclic aromatic hydrocarbon, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved (free+ionized) Ammonia Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, dissolved (free+ionized) Ammonia (NH3) + (NH4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Lithium (Li). For chemical terms, total indicates an unfiltered sample. Lithium, total Polycyclic aromatic hydrocarbon (PAH) having at least one alkyl sidechain (methyl, ethyl or other alkyl group) attached to the aromatic ring structure Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Polycyclic aromatic hydrocarbon, alkyl Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbonate hardness also known as temporary hardness Hardness, carbonate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethyl tert-Butyl Ether Ethyl tert-Butyl Ether (C6H14O) Dissolved Chromium Chromium, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, dissolved nitrate (NO3) Dissolved nitrate (NO3) nitrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sodium Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Sodium A chemical element with symbol Na (from Latin natrium) and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged ion—the Na+ cation. Its only stable isotope is 23Na. The free metal does not occur in nature, but must be prepared from compounds. Sodium is the sixth most abundant element in the Earth's crust and exists in numerous minerals such as feldspars, sodalite, and rock salt (NaCl). Many salts of sodium are highly water-soluble: sodium ions have been leached by the action of water from the Earth's minerals over eons, and thus sodium and chlorine are the most common dissolved elements by weight in the oceans. Wikipedia https://en.wikipedia.org/wiki/Quartz Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Quartz is a type of silicate mineral composed of silicon and oxygen atoms. Quartz ODM2 Variable Name Controlled Vocabulary A vocabulary for describing the name of Variables. ODM2 Working Group Dissolved oxygen, percent saturation Oxygen, dissolved percent of saturation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia https://en.wikipedia.org/wiki/Beta-glucosidase Beta-glucosidase catalyzes the hydrolysis of the glycosidic bonds to terminal non-reducing residues in beta-D-glucosides and oligosaccharides, with release of glucose. Chemistry Beta-glucosidase Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total antimony (Sb). "Total" indicates was measured on a whole water (unfiltered) sample. Antimony, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Program signature A unique data recorder program identifier which is useful for knowing when the source code in the data recorder has been modified. Percent base saturation (BS) is the percentage of the Cation Exchange Capacity (CEC) occupied by the basic cations Ca2+, Mg2+ and K+. Added to support Critical Zone Observatory (CZO) data use cases. Base saturation http://extension.uga.edu/publications/detail.html?number=C1040&title=Cation%20Exchange%20Capacity%20and%20Base%20Saturation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Water vapor density Water vapor density Niobium, formerly known as columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, crystalline, ductile transition metal, often found in the minerals pyrochlore and columbite, hence the former name "columbium". Its name comes from Greek mythology, specifically Niobe, who was the daughter of Tantalus, the namesake of tantalum Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Niobium, total https://en.wikipedia.org/wiki/Niobium Electric Energy Electric Energy Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Soil texture Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Soil texture is a classification instrument used both in the field and laboratory to determine soil classes based on their physical texture. Soil texture can be determined using qualitative methods such as texture by feel, and quantitative methods such as the hydrometer method. https://en.wikipedia.org/wiki/Soil_texture Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pressure relative to the local atmospheric or ambient pressure Pressure, gauge Wave height Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The height of a surface wave, measured as the difference in elevation between the wave crest and an adjacent trough. Cesium, dissolved Dissolved Cesium (Cs) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, inorganic Total Inorganic Nitrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phosphorus pentoxide https://en.wikipedia.org/wiki/Phosphorus_pentoxide Phosphorus pentoxide is a chemical compound with molecular formula P4O10 (with its common name derived from its empirical formula, P2O5). This white crystalline solid is the anhydride of phosphoric acid. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Total manganese (Mn). "Total" indicates was measured on a whole water (unfiltered) sample. Manganese, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Secchi depth Secchi depth Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radium-226 An isotope of radium in the uranium-238 decay series Organic Nitrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, organic Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nickel, dissolved Dissolved Nickel (Ni) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C16 C16 alkane, normal (i.e. straight-chain) isomer, common name: n-Hexadecane, formula: C16H34. Synonym: cetane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. bis(2-Chloroethyl)ether (C4H8Cl2O) bis(2-Chloroethyl)ether Added to support Critical Zone Observatory (CZO) data use cases. Holmium, dissolved Dissolved Holmium (Ho). "Dissolved " indicates a the measurement was made on a filtered sample. Wikipedia https://en.wikipedia.org/wiki/Holmium Chlorophyll (a+b+c) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chlorophyll (a+b+c) Added to support Critical Zone Observatory (CZO) data use cases. Activity, phenol oxidase https://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/microbiological-assay Assay for microbial activity using phenol oxidase Carbon to nitrogen molar ratio Carbon to nitrogen (C:N) molar ratio Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isobutane Isobutane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Streptococci, fecal Fecal Streptococci Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acenaphthene (C12H10) Acenaphthene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Thulium Dissolved Thulium (Tm). "Dissolved " indicates a the measurement was made on a filtered sample. Wikipedia Thulium, dissolved 1-Naphthalenol methylcarbamate (C12H11NO2) 1-Naphthalenol methylcarbamate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. N-Nitrosomethylethylamine N-Nitrosomethylethylamine (C3H8N2O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. C19 alkane, normal (i.e. straight-chain) isomer, common name: n-Nonadecane, formula : C19H40 n-alkane, C19 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. In Hydrology, throughfall is the process which describes how wet leaves shed excess water onto the ground surface. These drops have greater erosive power because they are heavier than rain drops. Furthermore, where there is a high canopy, falling drops may reach terminal velocity, about 8 metres (26 ft), thus maximizing the drop's erosive potential. Wikipedia https://en.wikipedia.org/wiki/Throughfall Throughfall Added to support Critical Zone Observatory (CZO) data use cases. Length Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Length Length is a measure of distance. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,4,5-Trimethylnaphthalene (C10H5(CH3)3), a polycyclic aromatic hydrocarbon (PAH) 1,4,5-Trimethylnaphthalene Specific ultraviolet absorbance at 280 nm. Determined by absorbance normalized to dissolved organic carbon (DOC) concentration. Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Specific_ultraviolet_absorbance Wikipedia SUVA280 2,4,5-Trichlorophenol 2,4,5-Trichlorophenol (C6H3Cl3O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isopropylbenzene Isopropylbenzene (C9H12) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. N, albuminoid Albuminoid Nitrogen https://is.mendelu.cz/eknihovna/opory/zobraz_cast.pl?cast=59061 Added to support Critical Zone Observatory (CZO) data use cases. Land classification Geographical land classification- genetically homogeneous territorial unit within natural boundaries with a certain structure and a certain character of interrelationships of considered components Bifenthrin Bifenthrin (C23H22ClF3O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Alkalinity, bicarbonate Bicarbonate Alkalinity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Silicon, total https://en.wikipedia.org/wiki/Silicon Total silicon (Si) Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Tin, total Total tin (Sn)."Total" indicates was measured on a whole water (unfiltered) sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia https://en.wiktionary.org/wiki/aboveground https://en.wikipedia.org/wiki/Biomass_(ecology) Added to support Critical Zone Observatory (CZO) data use cases. Biomass, above-ground The biomass is the mass of living biological organisms in a given area or ecosystem at a given time on or above the surface of the ground Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Battery temperature The battery temperature of a datalogger or sensing system Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 5-day Nitrogenous Biochemical Oxygen Demand BOD5, nitrogenous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Organic Carbon Carbon, dissolved organic Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chromium (VI) Hexavalent Chromium Zinc, distribution coefficient Ratio of concentrations of zinc in two phases in equilibrium with each other. Phases must be specified. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzyl alcohol Benzyl alcohol (C7H8O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Cuscuta spp. coverage Areal coverage of the plant Cuscuta spp. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. delta-18O of H2O Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isotope 18O of water https://en.wikipedia.org/wiki/Phosphorus Phosphorus is a chemical element with symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram (compare copper at about 0.06 grams). With few exceptions, minerals containing phosphorus are in the maximally oxidized state as inorganic phosphate rocks. Added to support Critical Zone Observatory (CZO) data use cases. Phosphorus Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Terbium Terbium, dissolved Dissolved Terbium (Tb). "Dissolved " indicates a the measurement was made on a filtered sample. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Europium, dissolved https://en.wikipedia.org/wiki/Europium Wikipedia Dissolved Europium (Eu). "Dissolved " indicates a the measurement was made on a filtered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wind gust direction Direction of gusts of wind DNA damage, tail length In a single cell gel electrophoresis assay (comet assay), tail length is the distance of DNA migration from the body of the nuclear core Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Intercept The point at which one of the variables in a function equals 0. Cryptophytes The chlorophyll a concentration contributed by cryptophytes Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Boron, dissolved dissolved boron Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,5-Dimethylnaphthalene 1,5-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) delta-D of CH4 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. hydrogen isotopes of methane Sulfur, pyritic Pyritic Sulfur Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The total number of events within the measurement period Counter Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1-Chloronaphthalene 1-Chloronaphthalene (C10H7Cl) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radiation, total outgoing Total amount of outgoing radiation from all frequencies Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia https://en.wikipedia.org/wiki/Soil_aggregate_stability Soil aggregate stability Soil aggregate stability is a measure of the ability of soil aggregates to resist degradation when exposed to external forces such as water erosion and wind erosion, shrinking and swelling processes, and tillage. Soil aggregate stability is a measure of soil structure and can be impacted by soil management. Europium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia https://en.wikipedia.org/wiki/Europium Europium Polycyclic aromatic hydrocarbon, parent Unsubstituted (i.e., non-alkylated) polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. CO2 acidity Acidity, CO2 acidity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A bromide is a chemical compound containing a bromide ion or ligand. This is a bromine atom with an ionic charge of −1 (Br−); for example, in caesium bromide, caesium cations (Cs+) are electrically attracted to bromide anions (Br−) to form the electrically neutral ionic compound CsBr. The term "bromide" can also refer to a bromine atom with an oxidation number of −1 in covalent compounds such as sulfur dibromide (SBr2). https://en.wikipedia.org/wiki/Bromide Added to support Critical Zone Observatory (CZO) data use cases. Bromide Wikipedia The phytoplankton pigment 19-Hexanoyloxyfucoxanthin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 19-Hexanoyloxyfucoxanthin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. SUVA254 Specific ultraviolet absorbance at 254 nm. Determined by absorbance normalized to DOC concentration. 2,3,5-Trimethylnaphthalene 2,3,5-Trimethylnaphthalene (C13H14), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Free Ammonia (NH3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, NH3 The sulfate or sulphate (see spelling differences) ion is a polyatomic anion with the empirical formula SO2- 4. Sulfate is the spelling recommended by IUPAC, but sulphate is used in British English. Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life. Sulfates are salts of sulfuric acid and many are prepared from that acid. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Sulfate https://en.wikipedia.org/wiki/Sulfate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved inorganic nitrogen Nitrogen, dissolved inorganic Added to support Critical Zone Observatory (CZO) data use cases. Movement of xylem sap in trees. Sap flow http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV&id=1157579162 Cerium Wikipedia https://en.wikipedia.org/wiki/Cerium Cerium is a chemical element with symbol Ce and atomic number 58. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife. Added to support Critical Zone Observatory (CZO) data use cases. Endrin Ketone Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Endrin Ketone (C12H9Cl5O) Nickel Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile. Pure nickel, powdered to maximize the reactive surface area, shows a significant chemical activity, but larger pieces are slow to react with air under standard conditions because an oxide layer forms on the surface and prevents further corrosion (passivation). Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere. https://en.wikipedia.org/wiki/Nickel Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Glucosidases Glucosidase Glucosidases are glycoside hydrolase enzymes categorized under the EC number 3.2.1. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methane (CH4) Methane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Friction velocity Friction velocity Parathion-ethyl (C10H14NO5PS) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Parathion-ethyl An isotope of uranium that can sustain fission chain reaction Uranium-235 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phosphorus, phosphate flux Phosphate (PO4) flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Lead, dissolved Dissolved Lead (Pb). For chemical terms, dissolved indicates a filtered sample Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia Dissolved Cerium (Ce). "Dissolved " indicates a the measurement was made on a filtered sample. https://en.wikipedia.org/wiki/Cerium Cerium, dissolved Added to support Critical Zone Observatory (CZO) data use cases. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Beryllium, dissolved Dissolved Beryllium (Be) . For chemical terms, "dissolved"indicates a filtered sample. Soil reponse of a reflected standing electromagnetic wave of a particular frequency which is related to the stored energy within the medium. This is the real portion of the complex dielectric constant. Real dielectric constant Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Aroclor-1016 Aroclor-1016 (C24H13Cl7), a PCB mixture Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Streamflow The volume of water flowing past a fixed point. Equivalent to discharge Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Solids Solids, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oxygen, dissolved Dissolved oxygen Copper Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Copper is a chemical element with symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. https://en.wikipedia.org/wiki/Copper Temperature change Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. temperature change Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,4-Dimethylphenol (C8H10O) 2,4-Dimethylphenol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Electric Power Electric Power Terbufos (C9H21O2PS3) Terbufos Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pentane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pentane In a single cell gel electrophoresis assay (comet assay), olive tail moment is the product of the percentage of DNA in the tail and the distance between the intesity centroids of the head and tail along the x-axis (Olive, et al., 1990) DNA damage, olive tail moment Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Silica Silica (SiO2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Fluorescence index for measuring fluorescent dissolved organic matter (FDOM). Ratio of emission intensity at 470nm to intensity at 520nm at excitation 370nm. Fluorescence index https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.4319/lo.2001.46.1.0038 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. BODu Ultimate Biochemical Oxygen Demand n-alkane, C24 C24 alkane, normal (i.e. straight-chain) isomer, common name: n-Tetracosane, formula : C24H50 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Latitude Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Latitude as a variable measurement or observation (Spatial reference to be designated in methods). This is distinct from the latitude of a site which is a site attribute. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phenol Phenol (C6H5OH) Wikipedia https://en.wikipedia.org/wiki/Bedrock Bedrock type In geology, bedrock is the lithified rock that lies under a loose softer material called regolith at the surface of the Earth or other terrestrial planets. Added to support Critical Zone Observatory (CZO) data use cases. Ethanol (C2H6O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethanol Methylene blue active substances Methylene Blue Active Substances (MBAS) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Solids, fixed suspended Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Fixed Suspended Solids Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Endosulfan Sulfate Endosulfan Sulfate (C9H6Cl6O4S) Chlorophyll c Chlorophyll c Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chlorophyll a Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chlorophyll a BOD1 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1-day Biochemical Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. o-Xylene o-Xylene (C8H10) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Groundwater Depth Groundwater depth is the distance between the water surface and the ground surface at a specific location specified by the site location and offset. Frequency of Rotation Number of rotations within a time period Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methylmercury (CH3Hg) Methylmercury Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, NH3 + NH4 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total (free+ionized) Ammonia Specific conductance Specific conductance Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Extracellular enzymes or exoenzymes are synthesized inside the cell and then secreted outside the cell, where their function is to break down complex macromolecules into smaller units to be taken up by the cell for growth and assimilation. Extracellular enzyme activity https://en.wikipedia.org/wiki/Fungal_extracellular_enzyme_activity Dichlorodiphenyldichloroethylene (C14H8Cl4) 4,4-DDE Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Iron, ferrous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ferrous Iron (Fe+2) http://cbavalanchecenter.org/interpreting-snowpack-layers-and-hardness/ Added to support Critical Zone Observatory (CZO) data use cases. Snow layers within the snowpack are a record of the winter’s weather. Like tree rings or strata of rock, layers can be traced to dates and conditions that formed them. One of the most important characteristics of a layer is its hardness. Harder snow is stronger and cohesive, while softer snow is weaker. Snow layer hardness 7-day Carbonaceous Biochemical Oxygen Demand BOD7, carbonaceous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Praseodymium Praseodymium is a chemical element with symbol Pr and atomic number 59. It is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. https://en.wikipedia.org/wiki/Praseodymium Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Bicarbonate (HCO3-) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Bicarbonate Dissolved Fluoride (F-) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Fluoride, dissolved Table overrun error count Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A counter which counts the number of datalogger table overrun errors Butanedioic acid, [(dimethoxyphosphinothioyl)thio]-, diethyl ester (C10H19O6PS2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Malathion Sodium adsorption ratio Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sodium adsorption ratio https://en.wikipedia.org/wiki/Cristobalite The mineral cristobalite is a high-temperature polymorph of silica, meaning that it has the same chemical formula as quartz, SiO2, but a distinct crystal structure. Wikipedia Cristobalite Added to support Critical Zone Observatory (CZO) data use cases. 2-Methyldibenzothiophene (C13H10S), a polycyclic aromatic hydrocarbon (PAH) 2-Methyldibenzothiophene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzo(a)pyrene Benzo(a)pyrene (C20H12), a polycyclic aromatic hydrocarbon (PAH) Chlorobenzilate (C16H14Cl2O3) Chlorobenzilate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,3,6-Trimethylnaphthalene 2,3,6-Trimethylnaphthalene (C10H5(CH3)3), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Helium Helium Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sulfate, dissolved Dissolved Sulfate (SO4) Cesium-137 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A radioactive isotope of cesium which is formed as a fission product by nuclear fission of uranium or plutonium. Methylpyrene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methylpyrene (C17H12) https://en.wikipedia.org/wiki/Iron Iron is a chemical element with symbol Fe (from Latin: ferrum) and atomic number 26. It is a metal in the first transition series. Iron Wikipedia Neodymium, dissolved https://en.wikipedia.org/wiki/Neodymium Added to support Critical Zone Observatory (CZO) data use cases. Dissolved Neodymium (Nd). "Dissolved " indicates a the measurement was made on a filtered sample. Wikipedia trans-1,2-Dichloroethene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. trans-1,2-Dichloroethene (C2H2Cl2) Difference in the 15N:14N ratio between the sample and standard (del N 15) Nitrogen-15, stable isotope ratio delta Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Snow depth Snow depth Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, total nitrite Total nitrite (NO2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Load, suspended The suspended load of a flow of fluid, such as a river, is the portion of its sediment uplifted by the fluid's flow in the process of sediment transportation. It is kept suspended by the fluid's turbulence. The suspended load generally consists of smaller particles, like clay, silt, and fine sands. Wikipedia https://en.wikipedia.org/wiki/Suspended_load Added to support Critical Zone Observatory (CZO) data use cases. 2,3,4,6-Tetrachlorophenol (C6H2Cl4O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,3,4,6-Tetrachlorophenol 4-Chloroaniline (C6H6ClN) 4-Chloroaniline Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C22 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. C22 alkane, normal (i.e. straight-chain) isomer, common name: n-Docosane, formula : C22H46 https://tech.africa/the-difference-between-signal-strength-and-quality/ Internal signature measurent quality Added to support Critical Zone Observatory (CZO) data use cases. Signal quality Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chromium, distribution coefficient Ratio of concentrations of chromium in two phases in equilibrium with each other. Phases must be specified. Indeno(1,2,3-cd)pyrene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Indeno(1,2,3-cd)pyrene (C22H12) NRCS USDA USDA particle size distribution category. 0.5 to 2 mm diameter fine earth particles. Sand See description at http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054253 Difference in the 13C:12C ratio between the sample and standard (del C 13) Carbon-13, stable isotope ratio delta Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved carbon monoxide (CO) Carbon monoxide, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total (dissolved + particulate) organic nitrogen Nitrogen, total organic Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Propanoic acid Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Propanoic acid (C3H6O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Silicic acid Hydrated silica disolved in water Carbon dioxide, transducer signal Carbon dioxide (CO2), raw data from sensor Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Fluorine (F2) Fluorine, dissolved Uranium, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Uranium. For chemical terms, dissolved indicates a filtered sample. 1,4,6-Trimethylnaphthalene (C10H5(CH3)3), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,4,6-Trimethylnaphthalene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Zinc (Zn) Zinc, dissolved Areal coverage of the plant Lycium carolinianum Lycium carolinianum Coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Code for the agency which analyzed the sample Agency code Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. delta-13C of C3H8 Isotope 13C of propane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radiation, total shortwave Total Shortwave Radiation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dinoseb (C10H12N2O5) Dinoseb N-Nitrosodiethylamine Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. N-Nitrosodiethylamine (C4H10N2O) http://sis.agr.gc.ca/cansis/glossary/h/index.html Added to support Critical Zone Observatory (CZO) data use cases. Humification index. Hummification is the processes by which organic matter decomposes to form humus. In humus the initial structures or shapes can no longer be recognized. See also humus. Humification index Magnesium, dissolved Dissolved Magnesium (Mg) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Clay See description at http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054253 USDA particle size distribution category. Less then 0.002 mm diameter fine earth particles. NRCS USDA 1,1,2,2-Tetrachloroethane (C2H2Cl4) 1,1,2,2-Tetrachloroethane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Mass Mass is a property of a physical body. It is generally a measure of an object's resistance to changing its state of motion when a force is applied. Physical Property wikipedia Mass 4,4'-Methylenebis(N,N-dimethylaniline) (C17H22N2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4,4-Methylenebis(N,N-dimethylaniline) Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Counting Particle counts Count of insoluble particles in a liquid like rainwater Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Seismic_refraction Wikipedia Seismic refraction Seismic refraction is a geophysical principle (see refraction) governed by Snell's Law. Used in the fields of engineering geology, geotechnical engineering and exploration geophysics, seismic refraction traverses (seismic lines) are performed using a seismograph(s) and/or geophone(s), in an array and an energy source. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acetic Acid (C2H4O2) Acetic Acid Dichlorodiphenyltrichloroethane (C14H9Cl5) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4,4-DDT The amount of sediment passing a sieve in a gradation test Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sediment, passing sieve Net Longwave Radiation Radiation, net longwave Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,1-Dichloroethane (C2H4Cl2) 1,1-Dichloroethane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Cytosolic protein Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The total protein concentration within the cytosolic fraction of cells. The cytosol refers to the intracellular fluid or cytoplasmic matrix of a eukaryotic cell. 1,2-Dichlorobenzene 1,2-Dichlorobenzene (C6H4Cl2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Reservoir water volume Reservoir storage NDVI Normalized difference vegetation index Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4-Nitrophenol 4-Nitrophenol (C6H5NO3) Added to support Critical Zone Observatory (CZO) data use cases. Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continuous solid solution series, more properly known as the plagioclase feldspar series (from the Ancient Greek for "oblique fracture", in reference to its two cleavage angles) https://en.wikipedia.org/wiki/Plagioclase Wikipedia Plagioclase Dissolved Organic Nitrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, dissolved organic Bromomethane (Methyl bromide) (CH3Br) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Bromomethane (Methyl bromide) Odor Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Odor 1,6,7-Trimethylnaphthalene (C10H5(CH3)3), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,6,7-Trimethylnaphthalene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Di-n-butylphthalate Di-n-butylphthalate (C16H22O4) Aldrin (C12H8Cl6) Aldrin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The phytoplankton pigment Alloxanthin Alloxanthin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Areal coverage of the plant Iva frutescens Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Iva frutescens coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Fluorine (F2) Fluorine Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total orthophosphate phosphorus Phosphorus, orthophosphate total Solids, volatile dissolved Volatile Dissolved Solids Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon, particulate organic Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Particulate organic carbon in suspension 2,4,6-Trichlorophenol (TCP) (C6H2Cl3OH) 2,4,6-Trichlorophenol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia https://en.wikipedia.org/wiki/Hafnium Hafnium Hafnium is a chemical element with symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. Added to support Critical Zone Observatory (CZO) data use cases. Delta cycle threshold for glutathione S-transferase (gst). Cycle threshold is the PCR cycle number at which the fluorescent signal of the gene being amplified crosses the set threshold. Delta cycle threshold for gst is the difference between the cycle threshold (Ct) of gst gene expression and the cycle threshold (Ct) for the gene expression of the reference gene (e.g., beta-actin). Glutathione S-transferase, delta cycle threshold Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Retene (C18H18), a polycyclic aromatic hydrocarbon (PAH), also known as methyl isopropyl phenanthrene or 1-methyl-7-isopropyl phenanthrene Retene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Area of a measurement location Area Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Offset Constant to be added as an offset to a variable of interest. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Tetraethylene glycol Tetraethylene glycol (C8H18O5) https://www.merriam-webster.com/dictionary/depth The perpendicular measurement downward from a surface Depth Added to support Critical Zone Observatory (CZO) data use cases. delta-13C of DIC Isotope 13C of dissolved inorganic carbon (DIC) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Niobium, dissolved Wikipedia Niobium, formerly known as columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, crystalline, ductile transition metal, often found in the minerals pyrochlore and columbite, hence the former name "columbium". Its name comes from Greek mythology, specifically Niobe, who was the daughter of Tantalus, the namesake of tantalum https://en.wikipedia.org/wiki/Niobium 5-day Biochemical Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. BOD5 Benz(a)anthracene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benz(a)anthracene (C18H12), a polycyclic aromatic hydrocarbon (PAH) Arsenic Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Arsenic Wikipedia Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid. It has various allotropes, but only the gray form, which has a metallic appearance, is important to industry. Wind gust speed Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Speed of gusts of wind N-Nitrosodimethylamine N-Nitrosodimethylamine (C2H6N2O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Signal-to-noise ratio Signal-to-noise ratio (often abbreviated SNR or S/N) is defined as the ratio of a signal power to the noise power corrupting the signal. The higher the ratio, the less obtrusive the background noise is. 3,3-Dichlorobenzidine (C12H10Cl2N2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 3,3-Dichlorobenzidine Soil coarse fraction http://info.reynoldscreekczo.org/dokuwiki/doku.php?id=soil_texture, https://en.wikipedia.org/wiki/Soil_texture Added to support Critical Zone Observatory (CZO) data use cases. Fraction of particles within a soil sample that are greater that 2mm in diameter Chlorophyll a, corrected for pheophytin Chlorphyll a corrected for pheophytin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Aluminium (in Commonwealth English) or Aluminum (in American English) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal. https://en.wikipedia.org/wiki/Aluminium Wikipedia Aluminum Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Gage height Water level with regard to an arbitrary gage datum (also see Water depth for comparison) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A counter which counts the number of datalogger flash memory errors Flash memory error count Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nickel, total Total Nickel (Ni). "Total" indicates was measured on a whole water (unfiltered) sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Thorium-230 An isotope of thorium in the thorium-232 decay series Zeaxanthin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The phytoplankton pigment Zeaxanthin Perylene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Perylene (C20H12), a polycyclic aromatic hydrocarbon (PAH) Sulfide, total Total sulfide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Silver Silver A chemical element with symbol Ag (from the Latin argentum, derived from the Proto-Indo-European h₂erǵ: "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia An isotope of uranium in the uranium-238 decay series Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Uranium-234 1,2-Diphenylhydrazine (C12H12N2) 1,2-Diphenylhydrazine Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ratio of concentrations of thallium in two phases in equilibrium with each other. Phases must be specified. Thallium, distribution coefficient Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ratio of concentrations of copper in two phases in equilibrium with each other. Phases must be specified. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Copper, distribution coefficient Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4-Nitroaniline 4-Nitroaniline (C6H6N2O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Fluorene Fluorene (C13H10), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chromium (III) Trivalent Chromium Non-carbonate hardness Hardness, non-carbonate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Molybdenum, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. total Molybdenum (Mo). For chemical terms, total represents an unfiltered sample. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor components in alloys. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Tantalum https://en.wikipedia.org/wiki/Tantalum Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. C21 alkane, normal (i.e. straight-chain) isomer, common name: n-Henicosane, formula : C21H44. n-alkane, C21 Added to support Critical Zone Observatory (CZO) data use cases. Beryllium is a chemical element with symbol Be and atomic number 4. It is a relatively rare element in the universe, usually occurring as a product of the spallation of larger atomic nuclei that have collided with cosmic rays. Within the cores of stars beryllium is depleted as it is fused and creates larger elements. It is a divalent element which occurs naturally only in combination with other elements in minerals. Notable gemstones which contain beryllium include beryl (aquamarine, emerald) and chrysoberyl. As a free element it is a steel-gray, strong, lightweight and brittle alkaline earth metal. Wikipedia https://en.wikipedia.org/wiki/Beryllium Beryllium A categorical variable marking the end of a data file. This is used for quality control. End of file Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Butyric Acid Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Butyric Acid (C4H8O2) 1-Methyldibenzothiophene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1-Methyldibenzothiophene (C13H10S) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chromium, particulate Particulate chromium (Cr) in suspension Carbon, dissolved inorganic Dissolved Inorganic Carbon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Potassium (K) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Potassium, total Propane, dissolved Dissolved Propane (C3H8) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzoic acid (C7H6O2) Benzoic acid Voltage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Voltage or Electrical Potential Wikipedia lanthanum is a chemical element with symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. https://en.wikipedia.org/wiki/Lanthanum Lanthanum Added to support Critical Zone Observatory (CZO) data use cases. Depth of soil Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. Depth, soil https://en.wikipedia.org/wiki/Silicon Water Content Quantity of water contained in a material or organism Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Sulfate (SO4) Sulfate, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Solids, total dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Dissolved Solids Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Triethylene glycol (C6H14O4) Triethylene glycol Tidal stage Tide stage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. DEPRECATED -- The use of this term is discouraged in favor of the use of the synonymous term "Carbon, particulate organic". Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon, suspended organic Basal area is the area of a given section of land that is occupied by the cross-section of tree trunks and stems at the base. The term is used in forest management and forest ecology. Wikipedia Area, basal https://en.wikipedia.org/wiki/Basal_area Added to support Critical Zone Observatory (CZO) data use cases. BOD20, carbonaceous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 20-day Carbonaceous Biochemical Oxygen Demand The number of fish identified by the detection equipment Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Fish detections Solids, total volatile Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Volatile Solids Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methanol Methanol (CH3OH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radon-222 An isotope of radon Added to support Critical Zone Observatory (CZO) data use cases. Litter, plant Wikipedia Litterfall, plant litter, leaf litter, tree litter, soil litter, or duff, is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground. https://en.wikipedia.org/wiki/Plant_litter Osmotic pressure Osmotic pressure Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon Dioxide, dissolved Dissolved Carbon dioxide (CO2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C29 C29 alkane, normal (i.e. straight-chain) isomer, common name: n-Nonacosane, formula : C29H60 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Remark Manually added comment field to provide additional information about a particular record. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Magnesium, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Magnesium (Mg) Aspect identifies the downslope direction of the maximum rate of change in value from each raster DEM cell to its neighbors. http://desktop.arcgis.com/en/arcmap/10.3/tools/spatial-analyst-toolbox/how-aspect-works.htm Aspect Added to support Critical Zone Observatory (CZO) data use cases. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Water pumped for Agriculture Water Use, Agriculture Bromine (Br2) Bromine Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,3,5-Trimethylbenzene 1,3,5-Trimethylbenzene (C6H3(CH3)3) Water Use, Domestic wells Water pumped by domestic wells; residents and landowners not using public supply. Nonagriculture wells. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethylene glycol Ethlene Glycol (C2H4(OH)2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 20-day Biochemical Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. BOD20 1,2-Dimethylnaphthalene 1,2-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Strontium, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Strontium (Sr) Ratio of concentrations of barium in two phases in equilibrium with each other. Phases must be specified Barium, distribution coefficient Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia Chemistry https://en.wikipedia.org/wiki/Cellulase Cellobiohydrolase Exocellulases or cellobiohydrolases cleave two to four units from the ends of the exposed chains produced by endocellulase, resulting in tetrasaccharides or disaccharides, such as cellobiose. Exocellulases are further classified into type I, that work processively from the reducing end of the cellulose chain, and type II, that work processively from the nonreducing end. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. No vegetation coverage Areal coverage of no vegetation Wikipedia https://en.wikipedia.org/wiki/Chromium Chromium Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard and brittle transition metal. Chromium boasts a high usage rate as a metal that is able to be highly polished while resisting tarnishing. Chromium is also the main component of stainless steel, a popular steel alloy due to its uncommonly high specular reflection. Simple polished chromium reflects almost 70% of the visible spectrum, with almost 90% of infrared light waves being reflected. The name of the element is derived from the Greek word χρῶμα, chrōma, meaning color, because many chromium compounds are intensely colored. Added to support Critical Zone Observatory (CZO) data use cases. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Inorganic Phosphorus Phosphorus, inorganic Salinity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Salinity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Turbidity Turbidity Leaf area index (LAI) Leaf area index (LAI) is a dimensionless quantity that characterizes plant canopies. It is defined as the one-sided green leaf area per unit ground surface area (LAI = leaf area / ground area, m2 / m2) in broadleaf canopies. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Leaf_area_index Orientation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Azimuth orientation of sensor platform Temperature, dew point Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dew point temperature Rainfall rate A measure of the intensity of rainfall, calculated as the depth of water to fall over a given time period if the intensity were to remain constant over that time interval (in/hr, mm/hr, etc) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Biomass, phytoplankton Total mass of phytoplankton, per unit area or volume The name apophyllite refers to a specific group of phyllosilicates, a class of minerals. Originally, the group name referred to a specific mineral, but was redefined in 1978 to stand for a class of minerals of similar chemical makeup that comprise a solid solution series, and includes the members fluorapophyllite-(K), fluorapophyllite-(Na), hydroxyapophyllite-(K). Apophyllite Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Apophyllite Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isopropyl alcohol Isopropyl alcohol (C3H8O) Total Selenium (Se). For chemical terms, total indicates an unfiltered sample Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Selenium, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hexachlorobutadiene Hexachlorobutadiene (C4Cl6) Weather conditions Weather conditions Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radiation, incoming shortwave Incoming Shortwave Radiation Measurement of phytoplankton with no differentiation between species Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phytoplankton Grain size (or particle size) is the diameter of individual grains of sediment, or the lithified particles in clastic rocks. The term may also be applied to other granular materials. Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Grain_size Wikipedia Grain size Host connected Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A categorical variable marking the attachment of a host computer to a logger. This is used for quality control. Titanium Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Titanium (Ti) Dissolved Sulfur (S) Sulfur, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzo(b)fluoranthene (C20H12), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzo(b)fluoranthene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Particulate barium (Ba) in suspension Barium, particulate Ytterbium https://en.wikipedia.org/wiki/Ytterbium Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Ytterbium is a chemical element with symbol Yb and atomic number 70. It is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. https://en.wikipedia.org/wiki/Evapotranspiration Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Evapotranspiration Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Evapotranspiration (ET) Evapotranspiration Evapotranspiration (ET) is the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Methoxychlor (C16H15Cl3O2) Methoxychlor Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4,4-DDD Dichlorodiphenyldichloroethane (C14H10Cl4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzo(k)fluoranthene (C20H12), a polycyclic aromatic hydrocarbon (PAH) Benzo(k)fluoranthene Suaeda linearis coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Areal coverage of the plant Suaeda linearis Benzo(g,h,i)perylene (C22H12), a polycyclic aromatic hydrocarbon (PAH) Benzo(g,h,i)perylene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Toluene Toluene (C6H5CH3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO 2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. Wikipedia https://en.wikipedia.org/wiki/Titanium_dioxide Titanium dioxide Added to support Critical Zone Observatory (CZO) data use cases. Argon, dissolved Dissolved Argon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Net respiration Respiration, net Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Piperonyl Butoxide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Piperonyl Butoxide (C19H30O5) Wikipedia Neutron Count Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Cosmic_ray Neutron counts of the naturally occurring cosmic rays. Roundness is the measure of how closely the shape of an object approaches that of a mathematically perfect circle. Roundness applies in two dimensions, such as the cross sectional circles along a cylindrical object such as a shaft or a cylindrical roller for a bearing. In geometric dimensioning and tolerancing, control of a cylinder can also include its fidelity to the longitudinal axis, yielding cylindricity. The analogue of roundness in three dimensions (that is, for spheres) is sphericity. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Roundness https://en.wikipedia.org/wiki/Roundness_(object) Dibromochloromethane Dibromochloromethane (CHBr2Cl) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Terbium https://en.wikipedia.org/wiki/Terbium Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Terbium is a chemical element with symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. Added to support Critical Zone Observatory (CZO) data use cases. Albite https://en.wikipedia.org/wiki/Albite Wikipedia Albite is a plagioclase feldspar mineral. It is the sodium endmember of the plagioclase solid solution series. As such it represents a plagioclase with less than 10% anorthite content. Tertiary Butyl Alcohol Tertiary Butyl Alcohol (C4H10O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,4-Dimethylnaphthalene 1,4-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Blue-green algae (cyanobacteria) with phycocyanin pigments Blue-green algae (cyanobacteria), phycocyanin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radiation, total incoming Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total amount of incoming radiation from all frequencies Length of the body of an organism Body length Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. N-Nitrosodi-n-butylamine (C8H18N2O) N-Nitrosodi-n-butylamine Sodium, fraction of cations Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sodium, fraction of cations C27 alkane, normal (i.e. straight-chain) isomer, common name: n-Heptacosane, formula : C27H56 n-alkane, C27 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Particulate Organic Nitrogen Nitrogen, particulate organic 2-Methylphenanthrene (C15H12), a polycyclic aromatic hydrocarbon (PAH) 2-Methylphenanthrene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Altitude https://en.wikipedia.org/wiki/Altitude Altitude or height (sometimes known as depth) is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, atmospheric pressure, and many more). As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage. Wikipedia Absorbance of ultraviolet light at a specified wavelength, typically at 254 or 280 nm for water samples. Not normalized to DOC concentration like variables such as SUVA280. Wikipedia https://en.wikipedia.org/wiki/Specific_ultraviolet_absorbance Added to support Critical Zone Observatory (CZO) data use cases. Absorbance, ultraviolet Particulate lead (Pb) in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Lead, particulate Chlorophyll b Chlorophyll b Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Sodium (Na) Sodium, dissolved Groundwater recharge or deep drainage or deep percolation is a hydrologic process where water moves downward from surface water to groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in the vadose zone below plant roots and is often expressed as a flux to the water table surface. Recharge occurs both naturally (through the water cycle) and through anthropogenic processes (i.e., "artificial groundwater recharge"), where rainwater and or reclaimed water is routed to the subsurface. Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia https://en.wikipedia.org/wiki/Groundwater_recharge Recharge, groundwater Gross Alpha Radionuclides Gross alpha radionuclides Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wellhead pressure The pressure exerted by the fluid at the wellhead or casinghead after the well has been shut off for a period of time, typically 24 hours Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Yttrium Added to support Critical Zone Observatory (CZO) data use cases. Yttrium is a chemical element with symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element". Yttrium Wikipedia Antimony, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved antimony (Sb)."Dissolved" indicates measurement was on a filtered sample. Cadmium is a chemical element with symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Like zinc, it demonstrates oxidation state +2 in most of its compounds, and like mercury, it has a lower melting point than the transition metals in groups 3 through 11. Cadmium and its congeners in group 12 are often not considered transition metals, in that they do not have partly filled d or f electron shells in the elemental or common oxidation states. The average concentration of cadmium in Earth's crust is between 0.1 and 0.5 parts per million (ppm). Cadmium Wikipedia https://en.wikipedia.org/wiki/Cadmium Added to support Critical Zone Observatory (CZO) data use cases. Bis(2-chloroethoxy)methane Bis(2-chloroethoxy)methane (C5H10Cl2O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chloride, dissolved Dissolved Chloride (Cl-) Chemistry Alpha-N-Acetylglucosaminidase https://en.wikipedia.org/wiki/Alpha-N-acetylglucosaminidase Wikipedia An enzyme with system name alpha-N-acetyl-D-glucosaminide N-acetylglucosaminohydrolase.[1][2][3][4] This enzyme catalyses the following chemical reaction: Hydrolysis of terminal non-reducing N-acetyl-D-glucosamine residues in N-acetyl-alpha-D-glucosaminides. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2-Hexanone (C6H12O) 2-Hexanone Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Alkalinity, carbonate plus bicarbonate Alkalinity, carbonate plus bicarbonate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C28 C28 alkane, normal (i.e. straight-chain) isomer, common name: n-Octacosane, formula : C28H58 Beryllium-10 Wikipedia Beryllium-10 (10Be) is a radioactive isotope of beryllium. https://en.wikipedia.org/wiki/Beryllium-10 Added to support Critical Zone Observatory (CZO) data use cases. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nickel, distribution coefficient Ratio of concentrations of nickel in two phases in equilibrium with each other. Phases must be specified. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sulfur Sulfur (S) Acidity, exchange Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The total amount of the Cation Exchange Capacity (CEC) of a soil that is due to H+ and Al3+ ions. It is a proportion of the total acidity and it is dependent on the type of soil and the percentage of the CEC that is composed of exchangeable bases (Ca2+, Mg2+, K+). Benzo(b)fluorene Benzo(b)fluorene (C17H12), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Indium is a chemical element with symbol In and atomic number 49. It is a post-transition metal that makes up 0.21 parts per million of the Earth's crust. Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. Added to support Critical Zone Observatory (CZO) data use cases. Indium Wikipedia https://en.wikipedia.org/wiki/Indium Total Nitrogen (NO3+NO2+NH4+NH3+Organic) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, total Formate Formate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon, suspended inorganic Suspended Inorganic Carbon Nitrogen, total dissolved Total dissolved nitrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Volume. To quantify discharge or hydrograph volume or some other volume measurement. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Volume Soil reponse of a reflected standing electromagnetic wave of a particular frequency which is related to the dissipation (or loss) of energy within the medium. This is the imaginary portion of the complex dielectric constant. Imaginary dielectric constant Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Salicornia bigelovii coverage Areal coverage of the plant Salicornia bigelovii 1,2-Dibromo-3-chloropropane 1,2-Dibromo-3-chloropropane (C3H5Br2Cl) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon, total solid phase Total solid phase carbon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Thallium Thallium Thallium is a chemical element with symbol Tl and atomic number 81. It is a gray post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. Chemists William Crookes and Claude-Auguste Lamy discovered thallium independently in 1861, in residues of sulfuric acid production. Both used the newly developed method of flame spectroscopy, in which thallium produces a notable green spectral line. Technetium Wikipedia Technetium is a chemical element with symbol Tc and atomic number 43. It is the lightest element whose isotopes are all radioactive; none are stable, excluding the fully ionized state of 97Tc. https://en.wikipedia.org/wiki/Technetium Added to support Critical Zone Observatory (CZO) data use cases. Water supplied by a public utility Water Use, Public Supply Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Shannon diversity index A diversity index that is based on the number of taxa, and the proportion of individuals in each taxa relative to the entire community, evaluated as entropy. Also known as Shannon-Weaver diversity index, the Shannon-Wiener index, the Shannon index and the Shannon entropy. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Aroclor-1254 Aroclor-1254 (C12H5Cl5), a PCB mixture Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Diethyl phthalate (C12H14O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Diethyl phthalate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A dimensionless diversity index, calculated as a ratio of the Shannon diversity index over its maximum. Also known as the Shannon Weaver evenness index Shannon evenness index Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A counter of events in a sequence Sequence number Chloride (Cl-) Chloride Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Bromine (Br2) Bromine, dissolved BODu, carbonaceous Carbonaceous Ultimate Biochemical Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Soil_horizon Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. A soil horizon is a layer parallel to the soil surface, whose physical characteristics differ from the layers above and beneath. Each soil type usually has three or four horizons. Soil horizon Sunshine duration Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sunshine duration Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Leaf wetness The effect of moisture settling on the surface of a leaf as a result of either condensation or rainfall. Evaporation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Evaporation BOD6, carbonaceous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 6-day Carbonaceous Biological Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The absolute pressure (combined water + barometric) on a sensor expressed as the height of an equivalent column of water. Water column equivalent height, absolute Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Longitude Longitude as a variable measurement or observation (Spatial reference to be designated in methods). This is distinct from the longitude of a site which is a site attribute. Bulk electrical conductivity of a medium measured using a sensor such as time domain reflectometry (TDR), as a raw sensor response in the measurement of a quantity like soil moisture. Bulk electrical conductivity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1-Ethylnaphthalene 1-Ethylnaphthalene (C10H7C2H5), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oil and grease Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oil and grease Chromium, total Total chromium (Cr). Total indicates was measured on a whole water (unfiltered) sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Oxygen Oxygen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Acid neutralizing capacity Acid neutralizing capacity https://en.wikipedia.org/wiki/Vadose_zone Added to support Critical Zone Observatory (CZO) data use cases. Depth, unsaturated zone Wikipedia Depth of the Unsaturated zone. The vadose zone, also termed the unsaturated zone, is the part of Earth between the land surface and the top of the phreatic zone, the position at which the groundwater (the water in the soil's pores) is at atmospheric pressure ("vadose" is from the Latin for "shallow"). Hence, the vadose zone extends from the top of the ground surface to the water table. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. BODu, nitrogenous Nitrogenous Ultimate Biochemical Oxygen Demand 1,8-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,8-Dimethylnaphthalene Depth, snow Depth of snow Added to support Critical Zone Observatory (CZO) data use cases. https://www.merriam-webster.com/dictionary/depth Vanadium, dissolved Dissolved vanadium (V). "Dissolved" indicates the measurement was made on a filtered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Endrin (C12H8Cl6O) Endrin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Silica, dissolved Dissolved silica (SiO2) Limonium nashii Coverage Areal coverage of the plant Limonium nashii Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Cobalt (Co) Cobalt, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hexane Hexane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Sodium (Na) Sodium, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Thulium Wikipedia Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Thulium Thulium is a chemical element with symbol Tm and atomic number 69. It is the thirteenth and third-last element in the lanthanide series. Like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds; because it occurs so late in the series, however, the +2 oxidation state is also stabilized by the nearly full 4f shell that results. Nickel, particulate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Particulate nickel (Ni) in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Watchdog error count A counter which counts the number of total datalogger watchdog errors Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Triphenylene Triphenylene (C18H12) Trifluralin Trifluralin (C13H16F3N3O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Suspended Total (Organic+Inorganic) Carbon Carbon, suspended total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved nitrite (NO2) nitrogen Nitrogen, dissolved nitrite (NO2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Fluorescence, dissolved organic matter (DOM) Added to support Critical Zone Observatory (CZO) data use cases. Fluorescence of dissolved organic matter (DOM). https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.4319/lo.2001.46.1.0039 Urea flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Urea ((NH2)2CO) flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Hexavalent Chromium Chromium (VI), dissolved Permittivity, electrical Wikipedia In electromagnetism, absolute permittivity, often simply called permittivity, usually denoted by the Greek letter ε (epsilon), is the measure of capacitance that is encountered when forming an electric field in a particular medium. More specifically, permittivity describes the amount of charge needed to generate one unit of electric flux in a particular medium. Accordingly, a charge will yield more electric flux in a medium with low permittivity than in a medium with high permittivity. Permittivity is the measure of a material's ability to store an electric field in the polarization of the medium. Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Permittivity Aroclor-1242 (C12H6Cl4), a PCB mixture Aroclor-1242 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. cis-1,3-Dichloropropene cis-1,3-Dichloropropene (C3H4Cl2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Absorbance The amount of radiation absorbed by a material 1,1-Dichloroethene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,1-Dichloroethene (C2H2Cl2) Benzo(e)pyrene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Benzo(e)pyrene (C20H12), a polycyclic aromatic hydrocarbon (PAH) Areal coverage of the plant Salicornia virginica Salicornia virginica coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Coliform, total Total Coliform Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Adamantane Adamantane (C10H16) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethane Ethane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ratio of concentrations of lead in two phases in equilibrium with each other. Phases must be specified. Lead, distribution coefficient Zinc Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity (electrowinning). https://en.wikipedia.org/wiki/Zinc Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia Nitrogen, nitrite (NO2) + nitrate (NO3) Nitrite (NO2) + Nitrate (NO3) Nitrogen Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C26 C26 alkane, normal (i.e. straight-chain) isomer, common name: n-Hexacosane, formula : C26H54, synonyms: cerane, hexeikosane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phorate Phorate (C7H17O2PS3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chloride, total Total Chloride (Cl-) Volatile Suspended Solids Solids, volatile suspended Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Rhenium (Re) Rhenium, total 2-Nitrophenol (C6H5NO3) 2-Nitrophenol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Tributoxyethyl phosphate Tributoxyethyl phosphate (C42H87O13P) https://en.wikipedia.org/wiki/Samarium A chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3. Added to support Critical Zone Observatory (CZO) data use cases. Samarium Wikipedia Albedo Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The ratio of reflected to incident light. 2-Chloronaphthalene 2-Chloronaphthalene (C10H7Cl) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,6-Dinitrotoluene 2,6-Dinitrotoluene (C7H6N2O4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Nacrite Wikipedia Nacrite Al2Si2O5(OH)4 is a clay mineral that is polymorphous (or polytypic) with kaolinite. It crystallizes in the monoclinic system. X-ray diffraction analysis is required for positive identification. Nacrite was first described in 1807 for an occurrence in Saxony, Germany. The name is from nacre in reference to the mother of pearl luster of nacrite masses. https://en.wikipedia.org/wiki/Nacrite Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Hydrogen Hydrogen, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Glutathione S-transferase, activity Glutathione S-transferase (GST) activity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Peridinin The phytoplankton pigment Peridinin 4,4-Methylenebis(2-chloroaniline) 4,4'-Methylenebis(2-chloroaniline) (C13H12Cl2N2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Bromide (Br-) Bromide, total Ratio between two variables in a linear relationship. Slope Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radiation, outgoing PAR Outgoing Photosynthetically-Active Radiation Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Deuterium Deuterium (2H), Delta D Added to support Critical Zone Observatory (CZO) data use cases. Amphibole https://en.wikipedia.org/wiki/Amphibole Wikipedia Amphibole is an important group of inosilicate minerals, forming prism or needlelike crystals, composed of double chain SiO 4 tetrahedra, linked at the vertices and generally containing ions of iron and/or magnesium in their structures. The length of flow of air past a point over a time interval. Windspeed times the interval of time. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wind Run d-Limonene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. d-Limonene (C10H16) Iron, dissolved Dissolved Iron (Fe) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Bismuth Added to support Critical Zone Observatory (CZO) data use cases. Bismuth Wikipedia Bismuth is a chemical element with symbol Bi and atomic number 83. It is a pentavalent post-transition metal and one of the pnictogens with chemical properties resembling its lighter homologs arsenic and antimony. Elemental bismuth may occur naturally, although its sulfide and oxide form important commercial ores. The free element is 86% as dense as lead. It is a brittle metal with a silvery white color when freshly produced, but surface oxidation can give it a pink tinge. Bismuth is marginally radioactive, and the most naturally diamagnetic element, and has one of the lowest values of thermal conductivity among metals. 2-Nitroaniline 2-Nitroaniline (C6H6N2O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. delta-13C of C4H10 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isotope 13C of butane https://petrowiki.org/Gamma_ray_logs Added to support Critical Zone Observatory (CZO) data use cases. The radioactivity of rocks has been used for many years to help derive lithologies. Natural occurring radioactive materials (NORM) include the elements uranium, thorium, potassium, radium, and radon, along with the minerals that contain them. There is usually no fundamental connection between different rock types and measured gamma ray intensity, but there exists a strong general correlation between the radioactive isotope content and mineralogy. Logging tools have been developed to read the gamma rays emitted by these elements and interpret lithology from the information collected. Gamma counts n-alkane, C30 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. C30 alkane, normal (i.e. straight-chain) isomer, common name: n-Triacontane, formula : C30H62 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Organic matter The organic matter component of a complex material. Dissolved Manganese (Mn) Manganese, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Diadinoxanthin The phytoplankton pigment Diadinoxanthin Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Cadmium Wikipedia Dissolved Cadmium. For chemical terms, "dissolved" indicates a filtered sample. Cadmium is a chemical element with symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Like zinc, it demonstrates oxidation state +2 in most of its compounds, and like mercury, it has a lower melting point than the transition metals in groups 3 through 11. Cadmium and its congeners in group 12 are often not considered transition metals, in that they do not have partly filled d or f electron shells in the elemental or common oxidation states. The average concentration of cadmium in Earth's crust is between 0.1 and 0.5 parts per million (ppm). Added to support Critical Zone Observatory (CZO) data use cases. Cadmium, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrous oxide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrous oxide (N2O) Propylene glycol Propylene glycol (C3H8O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. In a single cell gel electrophoresis assay (comet assay), percent tail DNA is the ratio of fluorescent intensity of the tail over the total fluorescent intensity of the head (nuclear core) and tail multiplied by 100. DNA damage, percent tail DNA The difference between the actual water vapor pressure and the saturation of water vapor pressure at a particular temperature. Vapor pressure deficit Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. BOD4, carbonaceous 4-day Carbonaceous Biological Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Gibbsite, Al(OH)3, is one of the mineral forms of aluminium hydroxide. It is often designated as γ-Al(OH)3 (but sometimes as α-Al(OH)3.[1]). It is also sometimes called hydrargillite (or hydrargyllite). https://en.wikipedia.org/wiki/Gibbsite Added to support Critical Zone Observatory (CZO) data use cases. Gibbsite Wikipedia 1,4-Dichlorobenzene (C6H4Cl2) 1,4-Dichlorobenzene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. https://en.wikipedia.org/wiki/Germanium Germanium, dissolved Wikipedia Dissolved Germanium (Ge). "Dissolved " indicates a the measurement was made on a filtered sample. Added to support Critical Zone Observatory (CZO) data use cases. Distichlis spicata Coverage Areal coverage of the plant Distichlis spicata Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. height, above sea floor Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Vertical distance from the sea floor to a point. Wind speed Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wind speed Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4-Chloro-3-methylphenol 4-Chloro-3-methylphenol (C7H7ClO) Particulate zinc (Zn) in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Zinc, particulate n-alkane, short-chain Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. short-chain alkanes, normal (i.e. straight chain) isomer (isomer range of alkanes measured should be specified) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon disulfide (CS2) Carbon disulfide Global Radiation Solar radiation, direct and diffuse, received from a solid angle of 2p steradians on a horizontal surface. Source: World Meteorological Organization, Meteoterm Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radiation, net shortwave Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Net Shortwave radiation 20-day Nitrogenous Biochemical Oxygen Demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. BOD20, nitrogenous Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Delta cycle threshold for superoxide dismutase (sod). Cycle threshold is the PCR cycle number at which the fluorescent signal of the gene being amplified crosses the set threshold. Delta cycle threshold for sod is the difference between the cycle threshold (Ct) of sod gene expression and the cycle threshold (Ct) for the gene expression of the reference gene (e.g., beta-actin). Superoxide dismutase, delta cycle threshold Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Alkalinity, total Total Alkalinity TDR waveform relative length Time domain reflextometry, apparent length divided by probe length. Square root of dielectric Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phosphorus, phosphate (PO4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Phosphate phosphorus Added to support Critical Zone Observatory (CZO) data use cases. Halloysite is an aluminosilicate clay mineral with the empirical formula Al2Si2O5(OH)4. Its main constituents are aluminium (20.90%), silicon (21.76%) and hydrogen (1.56%). https://en.wikipedia.org/wiki/Halloysite Wikipedia Halloysite Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Particulate thallium (Tl) in suspension Thallium, particulate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chlorine, dissolved Dissolved Chlorine (Cl2) Areal coverage of the plant Asteridae Asteridae coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. Dissolved Lanthanum (La). "Dissolved " indicates a the measurement was made on a filtered sample. Lanthanum, dissolved Methylene chloride (Dichloromethane) Methylene chloride (Dichloromethane) (CH2Cl2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A measure of the total amount of visible light present Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Luminous Flux A chemical element with symbol Rb and atomic number 37. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with a standard atomic weight of 85.4678. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. On Earth, natural rubidium comprises two isotopes: 72% is the stable isotope, 85Rb; 28% is the slightly radioactive 87Rb, with a half-life of 49 billion years—more than three times longer than the estimated age of the universe. Added to support Critical Zone Observatory (CZO) data use cases. Rubidium Wikipedia https://en.wikipedia.org/wiki/Rubidium Particulate selenium (Se) in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Selenium, particulate Carbon, dissolved total Dissolved Total (Organic+Inorganic) Carbon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sulfide, dissolved Dissolved Sulfide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Added to support Critical Zone Observatory (CZO) data use cases. https://en.wikipedia.org/wiki/Potassium_oxide Wikipedia Potassium oxide (K2O), or Kalium oxide, is an ionic compound of potassium and oxygen. Potassium oxide 4-Methylphenol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 4-Methylphenol (C7H8O) Phosphorus, dissolved organic Dissolved organic phosphorus Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Microbial biomass (bacteria and fungi) is a measure of the mass of the living component of soil organic matter. Biomass, microbial http://soilquality.org.au/factsheets/microbial-biomass Added to support Critical Zone Observatory (CZO) data use cases. COD Chemical oxygen demand Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Temperature, transducer signal Temperature, raw data from sensor Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Primary productivity, gross Rate at which an ecosystem accumulates energy by fixation of sunlight, including that consumed by the ecosystem. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Glutaraldehyde Glutaraldehyde (C5H8O2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Manganese Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in combination with iron, and in many minerals. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. https://en.wikipedia.org/wiki/Manganese Wikipedia Ammonium (NH4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Nitrogen, NH4 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Silicic acid flux Silicate acid (H4SiO4) flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Naphthalene Naphthalene (C10H8) The relative representation of a species in a particular ecosystem. If this generic term is used, the publisher should specify/qualify the species, class, etc. being measured in the method, qualifier, or other appropriate field. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Abundance Binary status to indicate the status of an instrument or other piece of equipment. Indicator Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wind direction Wind direction Fecal Coliform Coliform, fecal Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hexachloroethane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Hexachloroethane (C2Cl6) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Organic Phosphorus Phosphorus, organic Carbon dioxide flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon dioxide (CO2) flux Circumference Added to support Critical Zone Observatory (CZO) data use cases. Wikipedia In geometry, the circumference (from Latin circumferens, meaning "carrying around") of a circle is the (linear) distance around it. That is, the circumference would be the length of the circle if it were opened up and straightened out to a line segment. Since a circle is the edge (boundary) of a disk, circumference is a special case of perimeter. The perimeter is the length around any closed figure and is the term used for most figures excepting the circle and some circular-like figures such as ellipses. Informally, "circumference" may also refer to the edge itself rather than to the length of the edge. https://en.wikipedia.org/wiki/Circumference X-ray fluorescence (XRF) is the emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. Fluorescence, X-ray (XRF) Wikipedia https://en.wikipedia.org/wiki/X-ray_fluorescence Added to support Critical Zone Observatory (CZO) data use cases. Transpiration Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Transpiration Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chlorophyll a, uncorrected for pheophytin Chlorophyll a uncorrected for pheophytin Bromoform (CHBr3), a haloform Bromoform Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Latent Heat Flux Latent heat flux Added to support Critical Zone Observatory (CZO) data use cases. https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.4319/lo.2001.46.1.0038 Fluorescence of dissolved organic carbon (DOC). DOC is an element specific fraction of dissolved organic matter (DOM). Fluorescence, dissolved organic carbon (DOC) Solids, total suspended Total Suspended Solids Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Particulate organic phosphorus in suspension Phosphorus, particulate organic Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Wrack coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Areal coverage of dead vegetation Solids, fixed dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Fixed Dissolved Solids C18 alkane, normal (i.e. straight-chain) isomer, common name: n-Octadecane, formula : C18H38 n-alkane, C18 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Volumetric water content Volume of liquid water relative to bulk volume. Used for example to quantify soil moisture Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Terpineol Terpineol (C10H18O) Total Beryllium (Be). For chemical terms, "total" indicates an unfiltered sample. Beryllium, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 3,6-Dimethylphenanthrene 3,6-Dimethylphenanthrene (C16H14), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A level above or below which an action is performed. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Threshold C25 alkane, normal (i.e. straight-chain) isomer, common name: n-Pentacosane, formula : C25H52 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C25 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Heptachlor Heptachlor (C10H5Cl7) Barometric pressure expressed as an equivalent height of water over the sensor. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Water column equivalent height, barometric Acetone Acetone (C3H6O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Arsenic, particulate Particulate arsenic (As) in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1-Methylanthracene 1-Methylanthracene (C15H12), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Argon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Argon Porosity Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0 and 100%. https://en.wikipedia.org/wiki/Porosity Wikipedia Trichloroethene Trichloroethene (C2HCl3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chlorophyll a allomer Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The phytoplankton pigment Chlorophyll a allomer 1,2-Dichloroethane 1,2-Dichloroethane (C2H4Cl2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Vapor pressure The pressure of a vapor in equilibrium with its non-vapor phases Ratio of concentrations of arsenic in two phases in equilibrium with each other. Phases must be specified. Arsenic, distribution coefficient Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sodium plus potassium Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Sodium plus potassium Added to support Critical Zone Observatory (CZO) data use cases. Ytterbium, dissolved Wikipedia Dissolved Ytterbium (Yb). "Dissolved " indicates a the measurement was made on a filtered sample. https://en.wikipedia.org/wiki/Ytterbium Superoxide dismutase, activity Superoxide dismutase (SOD) activity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Water potential is the potential energy of water relative to pure free water (e.g. deionized water) in reference conditions. It quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure, or matrix effects including surface tension. Water potential Thallium, dissolved Dissolved thallium (Tl). "dissolved" indicates measurement was made on a filtered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The amount of water that could be evaporated and transpired if there was sufficient water available. Evapotranspiration, potential Silicon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Silicon (Si) Wikipedia https://en.wikipedia.org/wiki/Gadolinium Dissolved Gadolinium (Gd). "Dissolved " indicates a the measurement was made on a filtered sample. Gadolinium, dissolved Added to support Critical Zone Observatory (CZO) data use cases. Silver, dissolved Dissolved silver (Ag). For chemical terms, dissolved indicates a filtered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Particulate antimony (Sb) in suspension Antimony, particulate Dieldrin Dieldrin (C12H8Cl6O) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chrysene (C18H12), a polycyclic aromatic hydrocarbon (PAH) Chrysene 1-Methylfluorene 1-Methylfluorene (C14H12), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Enterococcal bacteria Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Enterococci Lutetium, dissolved Wikipedia https://en.wikipedia.org/wiki/Lutetium Added to support Critical Zone Observatory (CZO) data use cases. Dissolved Lutetium (Lu). "Dissolved " indicates a the measurement was made on a filtered sample. Gaseous Nitrogen (N2) Nitrogen, gas Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbonate ion (CO3-2) concentration Carbonate Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Gross beta radionuclides Gross Beta Radionuclides Water level relative to datum. The datum may be local or global such as NGVD 1929 and should be specified in the method description for associated data values. Water level Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Cesium, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total Cesium (Cs) Dibenzofuran Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dibenzofuran (C12H8O) n-alkane, C23 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. C23 alkane, normal (i.e. straight-chain) isomer, common name: n-Tricosane, formula : C23H48 Phosphorus, particulate Particulate phosphorus Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Phosphorus (P) Phosphorus, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Formic acid Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Formic acid (CH2O2) Percent full scale The percent of full scale for an instrument Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Radium-228 An isotope of radium in the thorium-232 decay series Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. hydrogen isotopes of water delta-D of H2O 1,3-Dimethylnaphthalene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,3-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Cyclohexane (C6H6Cl6) Cyclohexane Isopentane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Isopentane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The THW Index uses temperature, humidity, and wind speed to calculate an apparent temperature. THW Index 2-Butoxyethanol (CH3(CH2)2CH2OCH2OH) 2-Butoxyethanol Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Microsomal protein The total protein concentration within the microsomal fraction of cells. Microsomes refer to vesicle-like artifacts reformed from pieces of endoplasmic reticulum when eukaryotic cells are broken up in a laboratory. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Uranium Uranium (U) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Permittivity is a physical quantity that describes how an electric field affects, and is affected by a dielectric medium, and is determined by the ability of a material to polarize in response to the field, and thereby reduce the total electric field inside the material. Thus, permittivity relates to a material's ability to transmit (or "permit") an electric field. Permittivity Methylfluoranthene Methylfluoranthene (C17H12) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Parameter Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Parameter related to a hydrologic process. An example usage would be for a starge-discharge relation parameter. Cobalt-60 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A synthetic radioactive isotope of cobalt with a half-life of 5.27 years. Sulfur, organic Organic Sulfur Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total hardness Hardness, total Light attenuation coefficient Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Light attenuation coefficient Selenium, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved selenium (Se). For chemical terms, dissolved indicates a filtered sample. Dissolved Molbydenum (Mo). For chemical terms, dissolved indicates a filtered sample. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Molbydenum, dissolved Pyridine Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Pyridine (C5H5N) 1-Methylphenanthrene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1-Methylphenanthrene (C15H12), a polycyclic aromatic hydrocarbon (PAH) 2-Methylanthracene 2-Methylanthracene (C15H12), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Primary productivity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Primary Productivity Melanovanadite melanovanadite a mineral Ca2V10O25 that is a complex oxide of calcium and vanadium Added to support Critical Zone Observatory (CZO) data use cases. https://www.merriam-webster.com/dictionary/melanovanadite Dissolved Ethane (C2H6) Ethane, dissolved Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. A radioactive isotope of thorium which undergoes alpha decay Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Thorium-232 Strontium, dissolved Dissolved Strontium (Sr) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Selenium, distribution coefficient Ratio of concentrations of selenium in two phases in equilibrium with each other. Phases must be specified. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 1,2,4,5-tetrachlorobenzene 1,2,4,5-tetrachlorobenzene (C6H2Cl4) Areal coverage of the plant Spartina alterniflora Spartina alterniflora coverage Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Copper, total Total copper (Cu). "Total" indicates was measured on a whole water (unfiltered) sample. Carbon dioxide Carbon dioxide Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. The velocity of a substance, fluid or object Velocity Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. C33 alkane, (i.e. straight-chain) isomer, common name: n-Tritriacontane, formula : C33H68 n-alkane, C33 Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Endosulfan I (alpha) (C9H6Cl6O3S) Endosulfan I (alpha) N-Nitrosodi-n-propylamine (C6H14N2O) N-Nitrosodi-n-propylamine Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Barometric pressure Barometric pressure Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Squalene (C30H50) Squalene Pronamide Pronamide (C12H11Cl2NO) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Aluminum, particulate Particulate aluminum in suspension Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Biogenic silica Hydrated silica (SiO2 nH20) 1,1,1-Trichloroethane 1,1,1-Trichloroethane (C2H3Cl3) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,3-Dimethylnaphthalene 2,3-Dimethylnaphthalene (C10H6(CH3)2), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon dioxide storage flux Carbon dioxide (CO2) storage flux Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethyne Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Ethyne (C2H2) 1-Methylnaphthalene 1-Methylnaphthalene (C10H7CH3), a polycyclic aromatic hydrocarbon (PAH) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. n-alkane, C20 C20 alkane, normal (i.e. straight-chain) isomer, common name: n-Icosane, formula : C20H42. Synonyms: didecyl, eicosane. Mass of living biological organisms in a given area or ecosystem at a given time. If this generic term is used, the publisher should specify/qualify the species, class, etc. being measured in the method, qualifier, or other appropriate field. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Biomass Chloroethane Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Chloroethane (C2H5Cl) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Manganese, particulate Particulate manganese (Mn) in suspension http://solvita.com/wp-content/uploads/2012/12/Soil_Organic_CN_ojss_2012.pdf Mass of carbon extractable by water from soil or forest floor samples, also known as water-extractable organic carbon (WEOC) Added to support Critical Zone Observatory (CZO) data use cases. Carbon, organic extractable 1,3-Dimethyladamantane 1,3-Dimethyladamantane (C12H20). Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Temperature, datalogger Temperature, raw data from datalogger Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total petroleum hydrocarbon Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Petroleum hydrocarbon, total Total Iron (Fe) Iron, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Dissolved Zirconium Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Zirconium, dissolved Temperature, initial initial temperature before heating Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Distance Distance measured from a sensor to a target object such as the surface of a water body or snow surface. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Thallium, total Total thallium (Tl). "Total" indicates was measured on a whole water (unfiltered) sample. Zinc, total Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Total zinc (Zn)."Total" indicates was measured on a whole water (unfiltered) sample. Carbon tetrachloride (CCl4) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Carbon tetrachloride Antimony, distribution coefficient Ratio of concentrations of antimony in two phases in equilibrium with each other. Phases must be specified. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. 2,4-Dinitrotoluene (C7H6N2O4) 2,4-Dinitrotoluene Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Water flux Water Flux Dissolved Potassium (K) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV. Potassium, dissolved