THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - SSM/IS -
Full Name Special Sensor Microwave Imager Sounder Status Operational
Instrument Agencies NOAA, DoD (USA) Maturity High Heritage - Operational
Instrument Type Atmospheric temperature and humidity sounders Geometry Conical scanning
Instrument Technology Multi-purpose imaging MW radiometer Sampling Sounding
Data Access Data Format
Measurements and Applications Measures thermal microwave radiation. Global measurements of air temp profile, humidity profile, ocean surface winds, rain overland/ocean, ice concentration/age, ice/snow edge, water vapour/clouds over ocean, snow water content, land surface temperature.
Resolution Summary Varies with frequency: 25 x 17 km to 70 x 42 km
Swath Summary 1700 km
Accuracy Summary
Waveband Summary Microwave: 19 - 183 GHz (24 frequencies)
MW (~1.0 cm - ~100 cm)
Instrument Measurements
CategoryParameterAccuracy
Atmospheric Humidity FieldsAtmospheric specific humidity (LT, HT, TC) 
Atmospheric Temperature FieldsAtmospheric temperature (LT, HT, TC) 
Liquid water and precipitation ratePrecipitation rate (liquid) at the surface 
Snow cover, edge and depthSnow water equivalent 
Soil moistureSoil moisture at the surface 
Instrument Missions
DMSP F-16 - Defense Meteorological Satellite Program F-16 (2003 - 2016)
DMSP F-17 - Defense Meteorological Satellite Program F-17 (2006 - 2016)
DMSP F-18 - Defense Meteorological Satellite Program F-18 (2009 - 2016)
DMSP F-19 - Defense Meteorological Satellite Program F-19 (2014 - 2016)
DMSP F-20 - Defense Meteorological Satellite Program F-20 (2020 - 2025)
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