Group	Full Name	Parent Organization	Main Application	Main Function	Parameters
GSICS EP	Global Space-based Intercalibration System Executive Panel	WMO, CGMS	All	Calibration	All
GRWG	GSICS Research Working Group	GSICS EP	All	Calibration	All
GDWG	GSICS Data Management Working Group	GSICS EP	All	Calibration	All
WGCV	Working Group on Calibration and Validation	CEOS	All	Calibration	All
WGISS	Working Group on Information Systems and Services	CEOS	All	DataExchange	All
IGDDS-IG	Implementation Group of the Integrated Global Data Dissemination Strategy	WMO SP	All	DataExchange	All
RARS-IG	Regional ATOVS Retransmission Services Implementation Group	WMO SP	NWP	DataExchange, DataManagement	All
TF-SDC	Task Force on Satellite Data Codes	CGMS, WMO	All	DataManagement	All
NAEDEX	North-America Europe Data Exchange	Informal	NWP	DataExchange	All
APSDEU	Asia-Pacific Satelllite Data Exchange and Utilization	Informal	NWP	DataExchange	All
EPEG	EUMETCAST Product Expert Group for Africa	EUMETSAT, RA I	All	DataExchange	All
WGEDU	Working Group on Education, Training and Capacity Building	CEOS	All	Training	All
VL-MG	Virtual Laboratory Management Group	WMO, CGMS	All	Training	All
ITWG	International TOVS/ATOVS Working Group	IAMAS Radiation Commission	NWP	Development	Temperature and Humidity profile
IWWG	International Winds Working Group	CGMS	NWP	Development	Wind
IROWG	International Radio-Occultation Working group	CGMS	NWP	Development	Temperature and Humidity profile
IPWG	International Precipitation Working Group	CGMS, WMO	Hydro	Development	ECV Precipitation
WOAP	WCRP Observation and Assimilation Panel	WCRP		Research
SWFDP	Severe Weather Forecasting Demonstration Project	WMO	Forecasting	Operational use Training	Wind, precipitation, derived products (instability indices), lightning
OSTST	Ocean Surface Topography Science Team	EUMETSAT, CNES, NOAA, NASA	Ocean circulation, climate	Research	Sea surface height
GAW SAG	Global Atmospheric Watch Scientific Advisory Groups (Ozone, GHG, Aerosols)	CAS	Climate		Ozone, GHG, aerosols
GHRSST	GODAE High Resolution Sea Surface Temperature	OOPC	Forecasting, Climate	Development	ECV Sea Surface Temperature
IOCCG	International Ocean Colour Coordination Group		Climate	Research	ECV Ocean Colour
GEWEX RP	GEWEX Radiation Panel	WCRP	Climate	Research	Cross-cutting Atmosphere
AOPC	Atmospheric Observation Panel for Climate	GCOS, WCRP	Climate	ObsRequirements	Cross-cutting Atmosphere
OOPC	Oceanic Observation Panel for Climate	GCOS, WCRP	Climate	ObsRequirements	Cross-cutting Oceans
TOPC	Terrestrial Observation Panel for Climate	GCOS, WCRP	Climate	ObsRequirements	Cross-cutting Terrestrial
SCOPE-CM	Sustained Coordinated Processing of Environmental Satellite Data for Climate Monitoring	WMO, CGMS, CEOS	Climate	Production	All
ESCAP-PTC	WMO/ESCAP Panel on Tropical Cyclones	WMO, ESCAP	Tropical Cyclones	Operational Use	Wind, Precipitation, Temperature, Water Vapour, SST, Sea level, Sea state
ESCAP-TC	WMO/ESCAP Typhoon Committee	WMO, ESCAP	Tropical Cyclones	Operational Use
RA-IV-HC	RA IV Hurricane Committee	RA IV	Tropical Cyclones	Operational Use	Wind, Precipitation, Temperature, Water Vapour, SST, Sea level, Sea state
RA-I-TC	RA I Tropical Cyclone Committee for the South-West Indian Ocean	RA I	Tropical Cyclones	Operational Use
RA-V-HC	RA V Hurricane Committee	RA V	Tropical Cyclones	Operational Use	Wind, Precipitation, Temperature, Water Vapour, SST, Sea level, Sea state
ICTSW	Inter-Programme Coordination Team on Space Weather	CBS, CAeM	Space Weather	All	Total Electron Density, X-Ray Radiation, Particle flow
IAA SG SW	IAA Study Group on Space Weather	IAA, OOSA	Space Weather	All	Total Electron Density, X-Ray Radiation, Particle flow
IAVWOG	International Airways Volcano Watch Operations Group	ICAO	Space Weather		Total Electron Density, X-Ray Radiation, Particle flow
ET-EGOS	Expert Team on Evolution of the Global Observing System	CBS	All	Obs Requirements	All
ET-SAT	Expert Team on Satellite Systems	CBS	All	Satellites	All
ET-SUP	Expert Team on Satellite Utilization and Products	CBS	All	All	All