https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/3e822484-c94a-457b-a32f-376fcbd6fd35 TOPOGRAPHY Date=2013-08-23 User Id=tbs1979 Entity=Definition Operation=UPDATE Field=reference System Note=update Definition Old Value=Dictionary of Geological Terms, American Geological Institute, 1984. New Value=Dictionary of Geological Terms, American Geological Institute Date=2013-08-05 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE User Note=Move Concepts System Note=delete narrower relation Old Value=TOPOGRAPHY [3e822484-c94a-457b-a32f-376fcbd6fd35,85493] - TOPOGRAPHICAL RELIEF [f7d2e34a-c5c2-4c21-9132-2472620dbda1,85491] Date=2013-08-05 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE User Note=Move Concepts System Note=delete narrower relation Old Value=TOPOGRAPHY [3e822484-c94a-457b-a32f-376fcbd6fd35,85493] - CONTOURS [120f9132-a756-4f6f-a74c-78e94dfcd2a1,86765] Date=2015-06-09 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE User Note=Remove Concepts System Note=delete narrower relation Old Value=TOPOGRAPHY [3e822484-c94a-457b-a32f-376fcbd6fd35,85493] - LANDFORMS [d1f086a0-8e75-4814-8d1b-8e1fa0892a5c,86721] Date=2013-08-23 User Id=tbs1979 Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=The general configuration of the land surface, including its relief and the position of its natural features. New Value=The general configuration of the land surface, including its relief and the position of its natural features. The general configuration of the land surface, including its relief and the position of its natural features. 2015-06-09 12:39:22.0