CORF Committee on Radio Frequencies

CR cognitive radio

DDA direct data assimilation

DFS dynamic frequency selection

DIA Denver International Airport

DMSP Defense Meteorological Satellite Program

DOD Department of Defense

ECV essential climate variable

EDR Environmental Data Record

EESS Earth Exploration-Satellite Service

EIRP equivalent isotropically radiated power

EOS Earth Observing System

ESMR Electrical Scanning Microwave Radiometer

ESTAR Electronically-Scanned Thinned Array Radiometer

EVLA Expanded Very Large Array

FASR Frequency Agile Solar Radiotelescope

FCC Federal Communications Commission

FS Fixed Service

GBT Green Bank Telescope

GCOM-W Global Change Observation Mission-Water

GCOS Global Climate Observing System

GEO geostationary orbit (satellite); Group on Earth Observations

GEOSS Global Earth Observation System of Systems

GFSC Goddard Space Flight Center

GMI Global Precipitation Measurement-Microwave Imager

GOES Geostationary Operational Environmental Satellites

GPM Global Precipitation Measurement (mission)

GPS Global Positioning System

GR Einstein’s theory of general relativity

HCFC hydrochlorofluorocarbon

HFC hydrofluorocarbon

HOMER Hybrid Optimization Model for Electric Renewables

HSB Humidity Sounder for Brazil

IPCC Intergovernmental Panel on Climate Change

ITU International Telecommunication Union



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