THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - L-band Radiometer (SMAP) -
Full Name L-band Radiometer (SMAP) Status Operational
Instrument Agencies NASA Maturity
Instrument Type Imaging multi-spectral radiometers (passive microwave) Geometry Conical scanning
Instrument Technology Multi-purpose imaging MW radiometer Sampling Other
Data Access Open Access Data Format HDF-5
Measurements and Applications High-accuracy measurements of brightness temperatures for global estimates of surface soil moisture for climate modeling and weather prediction
Resolution Summary 40km spatial resolution; 3 days temporal resolution
Swath Summary 40-deg constant incidence angle across the 1000 km swath
[Max Swath: 1000 km]
Accuracy Summary 1.3K accuracy brightness temperature
Waveband Summary L-band (1.4 GHz)
L-Band (2 - 1 GHz)
Instrument Measurements
CategoryParameterAccuracy
Soil moistureSoil moisture at the surface 
Instrument Missions
SMAP - Soil Moisture Active Passive (2015 - 2018)
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