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/4e4d3c18-cdd4-474a-a936-6e127ec526f7 SWELLS Date=2021-10-20 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SWELLS [4e4d3c18-cdd4-474a-a936-6e127ec526f7,776184] - SWELL HEIGHT [5e9ad407-bd70-43ae-a901-6b07f100db27,778219] Date=2021-10-20 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SWELLS [4e4d3c18-cdd4-474a-a936-6e127ec526f7,776184] - SWELL PERIOD [7a8920f3-e531-47e0-bb23-a9f816cfb7bf,778220] Date=2021-10-20 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SWELLS [4e4d3c18-cdd4-474a-a936-6e127ec526f7,776184] - SWELL DIRECTION [b23597aa-ccb2-40be-920d-5663769cd502,778218] The long-period, undulating waves that propagate energy to greatdistances from the point of generation; the source of 'breakers' along thebeach. 2021-10-20 15:06:42.0