https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 24.8 2026-09-16T10:40:09.202Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/instruments/eeed0f6b-5821-420f-b928-b0db22cabf74 CO2NDIR Date=2018-05-23 User Id=sritz Entity=NarrowerRelation Operation=DELETE User Note=Move Concepts System Note=delete narrower relation Old Value=CO2NDIR [eeed0f6b-5821-420f-b928-b0db22cabf74,349111] - PICARRO L2130-i Flight Ready Water Vapor Isotopic Analyzer [df90c6d6-4201-4f3a-9792-22395447add6,367623] Date=2018-05-23 User Id=sritz Entity=NarrowerRelation Operation=INSERT User Note=Move Concepts System Note=add narrower relation New Value=CO2NDIR [eeed0f6b-5821-420f-b928-b0db22cabf74,349111] - PICARRO L2130-i Flight Ready Water Vapor Isotopic Analyzer [df90c6d6-4201-4f3a-9792-22395447add6,367623] A Carbon Dioxide Nondispersive Infrared Analyzer (C02NDIR) registers concentrations of CO2 in a stream of flowing air. 2018-05-23 18:23:29.0