THE CEOS DATABASE : Missions, Instruments and Measurements
Full Name Advanced Microwave Scanning Radiometer-EOS Status No longer operational
Instrument Agencies JAXA, NASA Maturity High Heritage - Operational
Instrument Type Imaging multi-spectral radiometers (passive microwave) Geometry Conical scanning
Instrument Technology Multi-purpose imaging MW radiometer Sampling Imaging
Data Access Open Access Data Format HDF4
Measurements and Applications Measurements of water vapour, cloud liquid water, precipitation, winds, sea surface temperature, sea ice concentration, snow cover and soil moisture. Instrument stopped functioning 4th October 2011.
Resolution Summary 5 - 50 km (dependent on frequency)
Swath Summary 1445 km
Accuracy Summary Sea surface temperature: 0.5 K, Sea ice cover: 10%, Cloud liquid water: 0.05 kg/m2, Precipitation rate: 10%, Water vapour: 3.5 kg/m2 through total column, Sea surface wind speed 1.5 m/s
Waveband Summary Microwave: 6.925 GHz, 10.65 GHz, 18.7 GHz, 23. 8 GHz, 36.5 GHz, 89.0 GHz
MW (~1.0 cm - ~100 cm)
Instrument Measurements
Atmospheric Humidity FieldsAtmospheric specific humidity (TC)3.5 [kg/m2]
Cloud particle properties and profileCloud liquid water (TC)0.05 [kg/m2]
Liquid water and precipitation ratePrecipitation rate (liquid) at the surface10 [%]
Ocean surface windsWind speed over sea surface (horizontal)1.5 [m/s]
Sea ice cover, edge and thicknessSea-ice cover10 [%]
Snow cover, edge and depthSnow water equivalent20 [%]
Soil moistureSoil moisture at the surface 
Surface temperature (ocean)Sea surface temperature0.5 [degrees C]
Instrument Missions
Aqua - Aqua (formerly EOS PM-1) (2002 - 2020)
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