人工增雨效果评估中的面雨量计算分析  

Areal Rainfall Calculation in Assessment of Precipitation Enhancement Effectiveness

作　　者：嵇磊[1] 李宏宇[1] 周珺[2] 

机构地区：[1]北京市人工影响天气办公室,北京100089 [2]中国科学院大气物理研究所,北京100029

出　　处：《气象科技》2009年第4期492-495,514,共5页Meteorological Science and Technology

基　　金：国家科技支撑计划课题"人工增雨信息处理技术研究"(2006BAC12B07);中国气象局气象新技术推广项目"京津冀人工影响天气联防指挥系统研究"(CMATG2007M11)资助

摘　　要：选取北京地区两次不同性质降水过程,分别对仅用气候站和并入自动气象站/雨量站的雨量资料,应用算术平均法和泰森多边形法对固定目标区进行面雨量计算分析。结果表明,泰森多边形法在不同性质降水过程面雨量计算中都表现出了一定优越性;并入自动气象站/雨量站的面雨量结果较仅用气候站资料所得结果更具代表性。在人工增雨效果评估中,可以尝试对由气候站计算的面雨量统计订正的办法,较精确地获得历史期目标区(包括控制区)面雨量实际值,这对提高人工增雨效果的评估精度具有重要实用价值。The areal rainfall over the target areas for two different precipitation processes in Beijing are calculated with the data from climate stations only or from both climate stations and automatic precipitation stations by using the arithmetic and Thiessen polygon methods respectively. The results show that the Thiessen polygon method is advantageous in analyzing different kinds of precipitation events. The areal rainfall calculated with the data from both climate stations and automatic precipitation stations is much more accurate than that from climate stations only. For the assessment of precipitation enhancement effectiveness, a statistical correction method is proposed to calculate more accurately the areal rainfall over the target areas （including the control area） by using the historical rainfall data, which is highly important for improving the precision in the assessment of precipitation enhancement effectiveness.

关 键 词：人工增雨 面雨量 泰森多边形 自动气象站 

分 类 号：P48[天文地球—大气科学及气象学] P457.6