Enhancement of dual-frequency classification module for GPM DPR

Dual-frequency precipitation radar (DPR) on board the GPM (Global Precipitation Measurement) core satellite has reflectivity measurements at two different frequency bands namely, Ku- and Ka- band. Dual-frequency ratio from these measurements has been used to perform rain type classification and melting region detection in the dual-frequency classification module in the current DPR level 2 algorithm. Beyond the applications that have been implemented, in this research, we focus on the enhancement of dual frequency classification module. We introduce and evaluate the algorithms to perform snow/rain separation and multiple scattering detection. These algorithms are candidates for future version of DPR algorithm.