ODM2 Variable Name Controlled Vocabulary ODM2 Working Group A vocabulary for describing the name of Variables. Curvature 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. http://desktop.arcgis.com/en/arcmap/10.3/manage-data/raster-and-images/curvature-function.htm Added to support Critical Zone Observatory (CZO) data use cases.