Acronyms
h/v
hight/vertical
HAM
Hydrologic[al] Angular Momentum
HCRF
Hipparcos Celestial Reference Frame / Hipparcos Catalog Reference Frame
HEIMDALL
High-End Interface for Monitoring and spatial Data Analysis using L2-Norm
HEO
High Earth Orbiter
HF
high frequency
HF-EOP
High Frequency EOP
HLF
High Level Forum
HPF
GOCE High-Level Processing Facility
hr, hrs
hour, hours
HRAO
Hartebeesthoek Radio Astronomy Observatory
HST
Hubble Space Telescope
HTTP, http
Hypertext Transfer Protocol
HTTPS, https
Hypertext Transfer Protocol Secure
HVAC
Heating, Ventilation and Air Conditioning
HY
HaiYan / Haiyang / Hai Yang [satellite]
