![]() ![]() ![]() The analysis increments for hydrometeors with both radar data assimilation methods show similar patterns but their magnitudes are different. It is illustrated that the background-dependent hydrometeor retrieval method can obtain reasonable model-equivalent hydrometeors from radar reflectivity. The retrieved hydrometeors in the indirect assimilation method are first verified against the hydrometeor types obtained from a polarimetric hydrometeor classification method. In this study, the indirect assimilation method based on background-dependent hydrometeor retrievals is compared with the direct assimilation method using frequent data assimilation cycles for five real data cases. assimilating hydrometeors retrieved from radar reflectivity. There are generally two major branches of research in radar reflectivity assimilation: directly assimilating radar reflectivity, and indirectly assimilating reflectivity, i.e. ![]() Assimilating radar reflectivity into NWP models is one of the keys to improve the accuracy of convective-scale numerical weather prediction (NWP).
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