Measurements and Applications
Ocean winds, waves, soil moisture, flooding, ice, snow
Full Name
Space GNSS Receiver - Remote Sensing Instrument (Zynq based)
aka DDMR (Delay Doppler Mapping Re, GNSS Reflectometer
Status
Being developed
Instrument Agencies
Maturity
Instrument Type
Other
Geometry
Nadir-viewing
Instrument Technology
GNSS receiver
Sampling
Other
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)
Resolution
25 km for diffuse scattering, <1 km resolution for coherent reflections
[Best Resolution: 500m]
Swath
Tracks sampled up to approx 700 km apart, wider possible with different antenna, more channels
[Max Swath: 700 km]
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%.
Waveband
L-Band (1575 MHz & 1176 MHz)
HydroGNSS - HydroGNSS-A and -B (2025 - 2031) |