朱慧琴,陈生,李晓俞,李峙

• 1:南宁师范大学地理科学与规划学院
• 2:南宁师范大学北部湾环境演变与资源利用教育部重点实验室
• 3:中山大学大气科学学院
• 4:中山大学广东省气候变化与自然灾害研究重点实验室

摘要(Abstract)：

为评估卫星定量降水估测(Quantitative Precipitation Estimation, QPE)产品在气象预测以及灾害预警监测的能力,研究针对台风"烟花"给河南省带来的极端降水过程,以地面雨量站观测数据为参考,采用相关系数(CC)、相对偏差(RB)、均方根误差(RMSE)、分数标准误差(FSE)、探测率(POD)、误报率(FAR)以及临界成功指数(CSI)这7种精度评价指标和统计方法分析和评估全球降水测量计划(Global Precipitation Measurement, GPM)的多卫星融合降水产品中的IMERG(Integrated Multi-satellitE Retrievals for GPM) Version 06中的准实时产品IMERG_ER和近实时产品IMERG_LR,以及全球卫星降水制图(Global Satellite Mapping of Precipitation, GSMaP) Version 07中的准实时产品GSMaP_NRT和标准产品GSMaP_MVK。与雨量站观测结果直接对比,IMERG_ER、GSMaP_NRT和GSMaP_MVK在不同程度上低估降水量,RB值分别为-7.22%、-10.37%和-16.26%,表现为明显低估了强降水中心的雨量。结果表明:(1)IMERG_LR卫星降水产品总体表现最优,对极端降水事件的监测有一定的探测潜力;(2)四种卫星降水产品存在明显提前预估峰值的现象;(3)各个卫星产品在降水量小时高估,在降水量大时低估。

关键词(KeyWords)： “7·21”河南暴雨;GPM;GSMaP;IMERG;极端降水;检验评估;灾害预警;降雨

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41875182);; 广州科技局计划项目(201904010162);; 中山大学“百人计划”项目(74110-18841203);; 广西自然科学基金项目(2018JJA150110);广西自然科学基金项目(2018GXNSFAA050130)

作者(Author): 朱慧琴,陈生,李晓俞,李峙

DOI: 10.13928/j.cnki.wrahe.2022.01.001

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