Abstract
A calibration procedure of differential reflectivity on the Weather Surveillance Radar-1988 Doppler (WSR-88D) is described. It has been tested on NOAA's modified WSR-88D research and development polarimetric radar and is directly applicable to radars that simultaneously transmit and receive waves having horizontal and vertical polarization.
Corresponding author address: Dusan Zrnic, NOAA/Severe Storms Laboratory, 1313 Halley Circle, Norman, OK 73069. Email: dusan.zrnic@noaa.gov