Full Name Space GNSS Receiver - Remote Sensing Instrument Status No longer operational
Instrument Agencies UKSA Maturity
Instrument Type Scatterometers Geometry Nadir-viewing
Instrument Technology GNSS receiver Sampling Sounding
Data Access Data Format
Measurements and Applications Ocean winds, waves, soil moisture, flooding, ice, snow
Resolution Summary 20-50 km for diffuse scattering, higher resolution for coherent reflections
[Best Resolution: 500m]
Swath Summary Tracks sampled up to approx 700 km apart, wider possible with different antenna
[Max Swath: 700 km]
Accuracy Summary Approx 2 m/s wind speed accuracy (lower winds), target 10% for higher winds
Waveband Summary L-Band (1575 MHz)
L-Band (2 - 1 GHz)
Instrument Measurements
Measurements Overview
Ocean surface windsWind speed over sea surface (horizontal)
Ocean wave height and spectrumSignificant wave height
Sea ice cover, edge and thicknessSea-ice cover
Sea-ice thickness
Sea-ice Concentration
Soil moistureSoil moisture at the surface
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Sea Ice click here click here search ECV Inventory records
Sea State click here click here search ECV Inventory records
Soil Moisture click here click here search ECV Inventory records
Instrument Missions
TDS-1 - TechDemoSat-1 (2014 - 2019)