ODM2 Variable Name Controlled Vocabulary ODM2 Working Group A vocabulary for describing the name of Variables. 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. Wikipedia https://en.wikipedia.org/wiki/Raman_scattering#Stokes_and_anti-Stokes Added to support Critical Zone Observatory (CZO) data use cases.