EVALUATION OF THE RAIN RATE ESTIMATES OF GPM/DPR USING GROUND RADAR DATA

Abstract

 GPM Core Observatory satellite was launched in February 2014. GPM is equipped with the Dual-frequency Precipitation Radar (DPR). The observation made with the spaceborne radar DPR is the first trial, and the evaluation is needed for the observation results. Therefore, we focus on matchup cases with the XRAIN ground radar, and compare the rain rate estimates by DPR and XRAIN. In addition, we consider the factor on the DPR algorithms for the differences of the rain rate estimates.