THE CEOS DATABASE : Missions, Instruments and Measurements
Full Name Scanning Multi-channel Microwave Radiometer Status No longer operational
Instrument Agencies NASA Maturity Low Heritage
Instrument Type Imaging multi-spectral radiometers (passive microwave) Geometry Cross-track scanning
Instrument Technology Multi-purpose imaging MW radiometer Sampling Imaging
Data Access Open Access Data Format
Measurements and Applications Global sea-ice concentrations and type (age) and sea surface temperatures; sea surface winds; snowcover; soil moisture; atmospheric water vapor over oceans; and rainfall.
Resolution Summary Cross-track/along-track sampling intervals range from 14 km x 14 km to 58 km x 28 km over the wavelength interval.
[Best Resolution: 14000m]
Swath Summary Forward viewing and scans 390 km to either side of the orbital track
[Max Swath: 780 km]
Accuracy Summary
Waveband Summary Scanning radiometer operating at frequencies of 37 (0.81 cm), 21 (1.42 cm), 18 (1.66 cm), 10.69 (2.8 cm), and 6.6 (4.54 cm) GHz.
Instrument Measurements
Sea ice cover, edge and thicknessSea-ice cover 
Sea-ice type 
Sea-ice surface temperature 
Glacier cover 
Sea-ice Concentration 
Instrument Missions
SeaSat - Seafaring Satellite (1978 - 1978)
NIMBUS-7 - NIMBUS-7 (1978 - 1994)
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