苏州1956年以来的降水变化及其空间差异研究  

Study on Distribution Change of Precipitation in Suzhou Region since 1956

作　　者：陈德超[1,2] 张晓波 陆建伟 黄铿[4] 

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215011 [2]江苏省环境科学与工程重点实验室,江苏苏州215011 [3]江苏省水文水资源勘测局苏州分局,江苏苏州215006 [4]南京大学地理与海洋科学学院,江苏南京210093

出　　处：《水文》2008年第6期68-72,共5页Journal of China Hydrology

基　　金：江苏省高校自然科学基金(07KJD170191);苏州科技学院科研基金(Z1080)项目

摘　　要：本文采用苏州大市自1956年以来的逐月降水观测数据,运用距平百分率(R)分析和GIS技术,对该地区近半个世纪来的降水变化特征及其空间分异规律进行研究。首先系统分析了1956～2006年苏州降水的年际、年内变化特征,并参照国际标准评价其降水正常概率;然后分别从苏州市域和城郊对比的角度,探讨了多年平均降水的区域差异及其与城市化的关系。Based on the monthly precipitation data since 1956, this paper analyzed spatial-temporal distribution characteristics of precipitation in Suzhou in later half past century by the meteorological statistical method and GIS. Through the precipitation＇s anomaly percentage （R） curve, both flood season and yearly precipitation characteristics in the past 51 year were analyzed in the study area. The results show that the precipitation distribution is basically normal. Otherwise, according to the contours of annual average precipitation from 1956 to 2006 and accumulated precipitation difference of urban and suburb in the past 20 years, the spatial difference was studied.

关 键 词：苏州 降水变化 空间差异 气象统计方法 

分 类 号：P332.1[天文地球—水文科学]