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/ac933400-3c8c-4db4-ac68-5e8ed06c8336 DISSOLVED GASES Date=2018-03-06 User Id=tstevens Entity=BroaderRelation Operation=INSERT User Note=Move Concepts System Note=add broader relation New Value=DISSOLVED GASES [ac933400-3c8c-4db4-ac68-5e8ed06c8336,86729] - GASES [7b98fcc5-4465-45c8-a647-557432276844,310625] Date=2018-03-06 User Id=tstevens Entity=Definition Operation=UPDATE Field=reference System Note=update Definition Old Value=Adapted from: Dictionary of Earth Science, 5th ed.. 1997. Sybil Parker, ed. in chief. McGraw-Hill. New Value=Adapted from: Dictionary of Earth Science, 5th ed.. 1997. Sybil Parker, ed. in chief. McGraw-Hill. Date=2018-03-06 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=Elements or compounds of gaseous form, dissolved in seawater. When keyed in a DIF, they do not typically include carbon dioxide, oxygen, nitrogen, or nitrous oxide, since these are their own variables. New Value=Elements or compounds of gaseous form, dissolved in seawater. Date=2018-03-06 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=Elements or compounds of gaseous form, dissolved in seawater. New Value=Elements or compounds of gaseous form, dissolved in water. Date=2018-03-06 User Id=tstevens Entity=BroaderRelation Operation=DELETE User Note=Move Concepts System Note=delete broader relation Old Value=DISSOLVED GASES [ac933400-3c8c-4db4-ac68-5e8ed06c8336,86729] - WATER QUALITY/WATER CHEMISTRY [8c02f5d1-ce86-4bf5-84d5-b3496cdba6ad,83565] Elements or compounds of gaseous form, dissolved in water. 2018-03-06 15:45:14.0