Abstract: A statistical relation between lighting image sensor (LIS) events and precipitation radar (PR) convection rainfall is obtained by using LIS and PR data on tropical rainfall measuring mission (TRMM). Convection rainfall retrieved from LIS data and other satellite data are continually assimilated into initial field of advanced regional prediction system (ARPS), and then the simulation results of meiyu front storm at Jianghuai Basin show that prediction of both storm center and rainfall density are improved.

Key words: LIS, storm, numerical simulation

摘要： 利用热带降雨测量卫星（TRMM）上闪电成像仪（LIS）和测雨雷达（PR）资料，得到了LIS闪电发生率与PR对流降水之间的统计关系。将由LIS闪电数据反演的对流降水等资料，连续同化加入到改进的区域预报模式（ARPS）的初始场中，对江淮流域暴雨进行模拟，结果显示暴雨的中心位置和强度预报都得到了明显的改善。

关键词: 闪电成像仪, 暴雨, 数值模拟