https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 24.8 2026-09-16T10:40:09.202Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/2e69c08b-ee0f-426c-a8d2-dc50876f76c2 LAND PRODUCTIVITY Date=2013-08-16 User Id=tbs1979 Entity=Definition Operation=UPDATE Field=reference System Note=update Definition Old Value=Webster's Revised Unabridged Dictionary. New Value=Webster's Revised Unabridged Dictionary. Date=2013-08-16 User Id=tbs1979 Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=The rate of production, especially of food, by the utilization of solar energy by producer organisms. New Value=The rate of production, especially of food, by the utilization of solar energy by producer organisms. The rate of production, especially of food, by the utilization of solar energy by producer organisms. 2013-08-16 09:14:14.0