Evaluation of Six Satellite Precipitation Products over the Chinese Mainland

Satellite precipitation products have been applied to many research fields due their high spatial and temporal resolution. However, satellite inversion of is indirect, different algorithms limit the accuracy measurement results, which leads great uncertainty. Therefore, it significance quantify record error characteristics for better application in hydrology other fields. In this study, based on CN05.1, a set site–based interpolation data, we evaluated accuracies six datasets (IMERG–E, IMERG–L, IMERG–F, GSMaP, CMORPH, PERSIANN–CDR) at scales (daily, monthly, yearly) mainland China period from 2001 2015. The results were as follows: (1) terms mean precipitation, IMERG–F was superior data all areas. IMERG PERANN–CDR performed than more suitable China. Site correction can effectively improve product inversion, so significantly IMERG–E IMERG–L. (2) Except PERSIANN–CDR, underestimated range 1–4 mm/day had coincidence with CN05.1 4–128 mm/day. (3) performance types summer that winter. larger seasons precipitation. (4) Qinghai–Tibet Plateau, where there are few stations, by closer actual situation, noteworthy. These help users understand these future algorithm developers.