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/ea85ea0b-1b7d-464a-9f8c-1f80383ffc51 PACK ICE Date=2024-10-03 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=Pack ice refers to high concentrations of sea ice. When concentrations are 60% or less, then the term drift ice is used. New Value=Pack ice refers to high concentrations of sea ice. When concentrations are 60% or less, then the term drift ice is used. Date=2024-10-03 User Id=tstevens Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 5d7ea074-225b-4221-b122-e6a085cdce24 relationship type: null relationship value: null generated by: null Pack ice refers to high concentrations of sea ice. When concentrations are60% or less, then the term drift ice is used. 2024-10-03 09:00:04.0