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.
出处
《水文》
CSCD
北大核心
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
关键词
苏州
降水变化
空间差异
气象统计方法
Suzhou
precipitation change
spatial difference
meteorological statistics method
