The Dual-frequency Dual-polarized Doppler Radar (D3R) is a mobile Ku-/Ka-band radar that was developed for NASA’s Global Precipitation Measurement (GPM) mission Ground The Dual-frequency Dual-polarized Doppler Radar (D3R) is a mobile Ku-/Ka-band radar developed for NASA’s Global Precipitation Measurement (GPM) mission Ground Validation (GV) program. D3R measures radar backscatter to provide reflectivity, Doppler velocity, differential reflectivity, correlation coefficient, and other radar observations. These measurements help derive droplet size distribution and identify hydrometer types. D3R has a beam width of approximately 0.9 degrees, a maximum range of 30 km, and a gate spacing of 150 m. It operates at wavelengths similar to the Dual-frequency Precipitation Radar (DPR) on the GPM Core satellite and can be used to validate DPR observations.
Instrument Details
- Radar
- Earth Science > Atmosphere > Precipitation > HydrometeorsEarth Science > Atmosphere > Precipitation > Liquid Precipitation > RainEarth Science > Spectral/engineering > Radar > Doppler VelocityEarth Science > Spectral/engineering > Radar > Radar BackscatterEarth Science > Atmosphere > Precipitation > Droplet SizeEarth Science > Spectral/engineering > Radar > Radar Reflectivity
- Full Column Profile
- Variable
- 150 m
- 13.91 GHz, 35.56 GHz
- https://doi.org/10.1109/IGARSS.2012.6350435
Chandra V. Chandrasekar, Matthew Schwaller, Manuel Vega
Chandra V. Chandrasekar, Matthew Schwaller, Manuel Vega
NASA Goddard Space Flight Center, Colorado State University, Remote Sensing Solutions
NASA GPM Project
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