https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 24.9 2026-09-30T10:52:06.201Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/9409ee0f-2b72-4472-9d61-f8072981a6cb CALCIUM Date=2017-03-10 User Id=tstevens Entity=Definition Operation=UPDATE Field=reference System Note=update Definition Old Value=United States Department of Agriculture New Value=United States Department of Agriculture Date=2017-03-10 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=Measurment of Clacium in various forms in the soil, such CaCO3 New Value=Measurement of Calcium in various forms in the soil, such CaCO3 Date=2024-09-26 User Id=tstevens Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 7367c08c-304f-4ce7-b716-975f835ba711 relationship type: null relationship value: null generated by: null Measurement of Calcium in various forms in the soil, such CaCO3 2024-09-26 09:54:43.0