Data Simulation of Geostationary Space-borne Precipitation Radar Based on APR-2 Data

Abstract

Due to the importance of some function and performance vertification for the future geostationary space-borne precipitation radar (GSPR), a data simulation method based on the second airborne precipitation radar(APR-2) is introduced in this paper. In this method, the low resolution volume of GSPR is divided into finer resolution sub-volumes which are matched with the resolution of the APR-2 data, and the Doppler spectrums of each resolution volume of GSPR are constructed from the Gaussian shape and their intensity, average frequency and spectrum width are decided by the reflectivity and Doppler frequency of APR-2 data. Results indicate that the simulation method is feasible and simulation data can show some characteristics of GSPR echoes