https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.6 2026-03-19T10:41:57.720Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/a7ae5843-479c-4055-b8fc-ba651e485750 CARBON Date=2020-01-17 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CARBON [a7ae5843-479c-4055-b8fc-ba651e485750,84059] - SOIL ORGANIC CARBON (SOC) [39a39084-ae04-421c-892b-f554133ca4e6,559709] Date=2020-01-17 User Id=sritz Entity=NarrowerRelation Operation=DELETE User Note=Remove Concepts System Note=delete narrower relation Old Value=CARBON [a7ae5843-479c-4055-b8fc-ba651e485750,84059] - NET ECOSYSTEM CO2 EXCHANGE (NEE) [ee0db2bc-5d5b-4211-a94d-c65b9a1b29f5,559689] Date=2024-12-17 User Id=tstevens Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 9315c474-b65f-400d-beba-611c9a6a62cb relationship type: null relationship value: null generated by: null Date=2020-01-17 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CARBON [a7ae5843-479c-4055-b8fc-ba651e485750,84059] - NET ECOSYSTEM CO2 EXCHANGE (NEE) [f6a8db71-9686-46ec-a3ac-66ca4a0ec1bd,559693] Date=2020-01-17 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CARBON [a7ae5843-479c-4055-b8fc-ba651e485750,84059] - NET ECOSYSTEM CO2 EXCHANGE (NEE) [ee0db2bc-5d5b-4211-a94d-c65b9a1b29f5,559689] Any measurement of Carbon in the soil, in organic or inorganic fractions. 2024-12-17 12:24:11.0