Exploration Abbreviations and Acronyms
- HAAPHigh-Altitude Aerial Photograph
- HAGEHuman Activity and Global Environment
- HALOEHalogen Occultation Experiment
- HALSSHigh-Altitude Lidar Sensing Station
- HAMOCCHamburg Ocean Carbon Cycle Model
- HBJHazira-Bijapur-Jagdishpur India
- HBWHalf Band-Width
- HCBPHexacolorobiphenol
- HCCDHistorical Canadian Climate Database
- HCFC-22Hydrochloroflourocarbon-22
- HCHOFormaldehyde Also Written As Ch2O
- HCMMHeat-Capacity Mapping Mission
- HCMRHeat-Capacity Mapping Radiometer
- HCNHistorical Climatology Network
- HCNDHistorical Climatology Network-Daily
- HDHierarchicalxdiagnosis
- HDGCBHuian Dimensions of Global Change Programme Unu
- HDGECHuman Dimensions of Global Environmental Change Programme Issc
- HDPHuman Dimensions Program Sedac
- HDRLHigh-Dose Reference Laboratory
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