GML
Global Monitoring Laboratory (NOAA)
GMP
Global Monitoring Program (NOAA)
GPS
Global Positioning System
GRFP
The Graduate Research Fellowship Program (NSF)
GRIPS
Gamma-Ray Imaging Payload for Solar flares
GRIS
Gamma-Ray Imaging Spectrometer
GSM
Global System for Mobile Communications
GUSTO
Galactic/Extragalactic ULDB Spectroscopic Terahertz
Observatory
HALON
High Altitude Learning Over Nebraska
HAPS
High Altitude Platform Stations (Alliance)
HASP
High Altitude Student Platform
HDTV
High-definition television
HELIUM
High European Laboratory for Institutes, Universities and
Markets
HEMERA
EU balloon program named after the Greek goddess of
daytime
HERO
High Energy Replicated Optics
HEROES
High Energy Replicated Optics to Explore the Sun
HySICS
HyperSpectral Imager for Climate Science
IASI
Infrared Atmospheric Sounding Interferometer (satellite)
ICTA
Information and Communication Technology Agency (Sri
Lanka)
IMAX
Isotope Matter-Antimatter Experiment
IMO
International Meteorology Organization
INGV
Italian National Institute for Geophysics and Volcanology
INPE
National Institute for Space Research (Brazil)
IPR
Integration Progress Review
IPST
Institute for Physical Science and Technology (Univ. of
Maryland)
IQSY
International Quiet Sun Year
IR
Infra Red
IRAD
Internal Research and Development
ISA
Italian Space Agency
ISAS
Institute of Space and Aeronautical Science (JAXA)
ISM
Interstellar Medium
ISP
Internet service provider
ISR
Intelligence, Surveillance and Reconnaissance
ISRO
Indian Space Research Organization
ISTAR
International Science Technology and Research
ISTD
Instrument Systems and Technology Division (Goddard)
332 Glossary and Terminology