THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - ASCAT -
Full Name Advanced Scatterometer Status Operational
Instrument Agencies EUMETSAT, ESA Maturity
Instrument Type Scatterometers Geometry Side-looking
Instrument Technology Radar scatterometer Sampling Sounding
Data Access Open Access Data Format Native and BUFR
Measurements and Applications Measures wind speed and direction over ocean, soil moisture, sea ice cover, sea ice type, snow cover and snow parameters and vegetation parameters
Resolution Summary Hi-res mode: 25 - 37 km, Nominal mode: 50 km
Swath Summary Continuous; 2 x 500 km swath width
Accuracy Summary Wind speeds in range 4 - 24 m/s: 2 m/s and direction accuracy of 20 deg
Waveband Summary Microwave: C Band, 5.256 GHz
MW (~1.0 cm - ~100 cm)
C-Band (8 - 4 GHz)
Instrument Measurements
CategoryParameterAccuracy
Ocean surface windsWind speed over sea surface (horizontal) 
Sea ice cover, edge and thicknessSea-ice cover 
Sea-ice type 
Soil moistureSoil moisture at the surface 
Instrument Missions
Metop-A - Meteorological Operational Polar Satellite - A (2006 - 2019)
Metop-B - Meteorological Operational Polar Satellite - B (2012 - 2024)
Metop-C - Meteorological Operational Polar Satellite - C (2018 - 2023)
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