星载降水测量雷达降水产品研究进展

Review of Research Progress in New Generation Satellite-Borne Precipitation Products

利用星载技术获得的降水信息与其他常规观测手段得到的信息相比,具有更广的空间覆盖性。星载产品的研究对降水微观信息的认识、数值预报的改进和水文农业的发展都有十分重要的意义。本文对美国宇航局NASA和日本宇航局JAXA联合开发的气象卫星降水产品,即第1部TRMM(Tropical Rainfall Measuring Mission)卫星的降水雷达(PR))和GPM(Global Precipitation Measurement)卫星的双频降水雷达(DPR)的降水产品,从评估验证、统计分析和个例分析的角度分类阐述了目前对TRMM和GPM降水产品的相关研究工作,最后提出了目前星载降水产品存在的一些问题、星载仪器的局限性以及对未来星载降水产品发展的展望。

Compared with the information obtained by other conventional observation methods,the precipitation information obtained by the space-borne technology has higher temporal and spatial resolution and wider spatial coverage.Researches on the space-borne product are important for the control of microcosmic precipitation information,the improvement of numerical forecasts and the development of hydrological agriculture.This paper focuses on the development of the new-generation meteorological satellite precipitation products from the TRMM（Tropical Rainfall Measuring Mission）satellite equipped with high resolution precipition radar（PR）and the GPM（Global Precipitation Measurement）satellite equipped with dual frequency precipitation（DPR）and progresses on their production researches,as well as the TRMM and GPM product accuracy from both the domestic and foreign relevant papers,statistical significance,and case studies.Some problems existing in the current space-borne precipitation products are analyzed.