![GCPEx GCPEx logo](http://www.itsc.uah.edu/main/sites/default/files/styles/large/public/field/image/gcpex_logo-hex.jpg?itok=GQNsF_nY)
![IFloodS IFloodS logo](http://www.itsc.uah.edu/main/sites/default/files/styles/large/public/field/image/ifloods_graphic_0.jpg?itok=X6jMgb6F)
GHRC has published the GPM Ground Validation Dual-frequency Dual-polarized Dopper Radar (D3R) guide for two missions: Iowa Flood Studies (IFloodS) and the GPM Cold Season Precipitation Experiment (GCPEx). The D3R is a fully polarimetric, scanning weather radar system operating at the nominal frequencies of 13.91 GHz and 35.56 GHz covering a maximum range of 30 km. The Doppler velocity, radar reflectivity, and spectrum width are provided in the data in the netCDF format. Browse images are also available in .png format.