Instrument Table

Agency
Mission Name
Mission Status
Instrument Name
Instrument Status
Applications
Type
Spatial Resolution Best
Technology
Data Access
Waveband
InstrumentAgencyMissionsStatusTypeMeasurements &
applications
Technical characteristics
DDMI
Delay Doppler Mapping Instrument
NASA (NOAA)Current: CYGNSS
Future: -
Complete: -
OperationalOtherConstellation of bistatic radar receivers using GPS satellite transmitters to detect ocean surface roughness and estimate near-surface wind speed from calm sea through hurricane force conditions and under all levels of precipitation.
Waveband:Microwave: 1.575 GHz
L-Band
Spatial resolution:20-50 km (variable in ground processing)
Best resolution: 20000 m
Swath width:Field of view of potential GPS specular point contacts extends 740 km cross-track in both port and starboard directions.
Accuracy:wind speed RMS retrieval uncertainty: 2 m/s for winds less than 20 m/s and 10% for winds greater than 20 m/s
Data Access:Open Access
Data Format:NetCDF
SGR-ReSI-Z
Space GNSS Receiver - Remote Sensing Instrument (Zynq based)
UKSA (ESA)Current: HydroGNSS
Future: -
Complete: -
Being developedOtherOcean winds, waves, soil moisture, flooding, freeze / thaw state over permafrost, biomass, ice, snow
Waveband:L-Band (1575 MHz & 1176 MHz)
L-Band
Spatial resolution:25 km for diffuse scattering, <1 km resolution for coherent reflections
Best resolution: 500 m
Swath width:Tracks sampled up to approx 700 km apart, wider possible with different antenna, more channels
Accuracy:Goals: Soil Moisture: 0.04 m3/m3, Freeze-Thaw: 90%, Inundation: 90%, Biomass: 20%, Ocean wind Speed: 2 m/s, Sea ice extent: 90%.
Data Access:Open Access
Data Format:NetCDF L1b (Delay Doppler Maps) and L2 (Soil Moisture, Freeze Thaw, Inundation, Biomass, Ocean wind speed, Sea Ice Extent)