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/d73e969a-4b66-4713-8d63-fa3cbb1e25e3 SEA ICE Date=2021-10-21 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Move Concepts System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,774840] - SEA SURFACE TOPOGRAPHY [68f93a0c-1525-4f5a-9545-5d94191a3dbf,775007] Date=2023-02-24 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1228717] - SEA ICE DYNAMICS [defd2c00-64e3-4986-9061-feade19f972f,1232201] Date=2021-10-21 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,774840] - SEA ICE ORIGIN [48d9b511-8e99-4b6d-a0e8-e87b71bd172e,778242] Date=2021-11-02 User Id=tstevens Entity=NarrowerRelation Operation=DELETE User Note=Cut Concepts System Note=delete narrower relation Old Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,789249] - SEA SURFACE TOPOGRAPHY [68f93a0c-1525-4f5a-9545-5d94191a3dbf,789416] Date=2021-10-21 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,774840] - SEA ICE TOPOGRAPHY [15547b03-1b99-4c60-92eb-216a2908f504,778232] Date=2022-08-05 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1007918] - SEA ICE AREA [354c4f50-ccf9-4714-85ee-b6c028521bef,1011368] Date=2022-08-05 User Id=sritz Entity=NarrowerRelation Operation=DELETE User Note=Remove Concepts System Note=delete narrower relation Old Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1007918] - SEA ICE STRENGTH [91dea76a-1f9a-4c3d-9791-1806b3a04f42,1011371] Date=2020-08-27 User Id=sritz Entity=NarrowerRelation Operation=DELETE User Note=Remove Concepts System Note=delete narrower relation Old Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,83429] - SEA ICE VOLUME BUDGET [9eb9029c-fe64-415a-950f-a1baad014572,560667] Date=2022-04-22 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,890956] - ICE DRAFT [ae4869cc-65f4-4f24-a77b-b77637f8818c,894387] Date=2022-08-05 User Id=sritz Entity=NarrowerRelation Operation=DELETE User Note=Remove Concepts System Note=delete narrower relation Old Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1007918] - SEA ICE STRAIN RATES [ae2f63e3-2345-491e-b49d-593e03db09c2,1011370] Date=2023-12-21 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1525338] - MELT POND [7b5939eb-4101-40bc-8dfe-810f6e9e5d6f,1528845] Date=2023-02-24 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1228717] - SEA ICE MASS BALANCE [4519a99a-ffa7-436b-888a-c742c82b9ed1,1232204] Date=2022-08-05 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1007918] - SEA ICE STRENGTH [91dea76a-1f9a-4c3d-9791-1806b3a04f42,1011371] Date=2022-08-05 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1007918] - SEA ICE STRAIN RATES [ae2f63e3-2345-491e-b49d-593e03db09c2,1011370] Date=2020-08-27 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,83429] - SEA ICE VOLUME BUDGET [9eb9029c-fe64-415a-950f-a1baad014572,560667] Date=2019-08-26 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,83429] - SEA ICE/OCEAN CLASSIFICATION [dc2d2e73-4028-41d2-96f9-0b800fa95ea4,369059] Date=2022-08-05 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SEA ICE [d73e969a-4b66-4713-8d63-fa3cbb1e25e3,1007918] - SEA ICE VOLUME [32929f40-ee7f-411d-8d2d-1d2cd9b78b09,1011369] Pertaining to the study of frozen seawater over the ocean surface. 2023-12-21 09:39:02.0