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/dff4d4af-e1e0-4991-884b-a1c088a802b2 2013-02-18 CORAL REEFS Date=2013-03-22 User Id=tbs1979 Entity=Definition Operation=INSERT System Note=insert Definition New Value=id: null text: Underwater structures made from calcium carbonate secreted by corals. Corals are colonies of tiny living animals found in marine waters containing few nutrients. Most coral reefs are built from stony corals, and are formed by polyps that live together in groups. The polyps secrete a hard carbonate exoskeleton which provides support and protection for the body of each polyp. language code: en Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - BARRIER REEF [5fde7781-d4f6-41a8-8428-f428b70c02dc,82563] Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - FRINGING REEF [0f5c48d1-5189-495d-b5a7-7ad596f0a5c4,82561] Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - PATCH REEF [a1451fce-9e69-4f2d-b2cf-27238a7577ce,82565] Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - RIBBON REEF [b428ba89-4638-4989-90c1-f5e4f0d0a6f6,82571] Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - APRON REEF [0e566bce-90bf-4a0a-a000-5bb5fb430788,82567] Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - BANK REEF [57417a5e-4d86-4fb6-81d6-68bf9a3d1148,82569] Date=2013-02-18 User Id=tbs1979 Entity=BroaderRelation Operation=INSERT User Note=Insert Concept System Note=add broader relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - COASTAL LANDFORMS [c58320e6-3f1d-4c36-9bee-6bad73404c21,62739] Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - TABLE REEF [5f4dc81d-0893-4eb9-b82a-6a070836aa16,82575] Date=2024-10-10 User Id=tstevens Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: c6244bfb-300f-4818-bf45-cf1a15e7e073 relationship type: null relationship value: null generated by: null Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=CORAL REEFS [dff4d4af-e1e0-4991-884b-a1c088a802b2,82559] - ATOLL REEF [8c89ede4-94d8-4fd4-a3df-f9d42e9835eb,82573] Underwater structures made from calcium carbonate secreted by corals. Corals are colonies of tiny living animals found in marine waters containing few nutrients. Most coral reefs are built from stony corals, and are formed by polyps that live together in groups. The polyps secrete a hard carbonate exoskeleton which provides support and protection for the body of each polyp. 2024-10-10 09:11:39.0