汾河流域降水量及蒸发量的空间变异性分析研究  

Spatial Variability Analysis of Precipitation and Evapotranspiration in Fen River Basin

作　　者：任健美[1] 翟大彤[1] 

机构地区：[1]太原师范学院城市与旅游学院,山西太原030012

出　　处：《太原师范学院学报（自然科学版）》2011年第2期135-138,共4页Journal of Taiyuan Normal University:Natural Science Edition

基　　金：山西省自然科学基金项目(2010011046)

摘　　要：借助于地质统计学方法对汾河流域的多年平均降雨量和蒸发量的空间变异性进行了分析,揭示了多年平均降水量和蒸发量的空间变异特征,并应用Kriging方法进行空间插值.分析结果表明,汾河流域多年平均降水量和蒸发量在不同的分割距离范围内有不同的空间相关性,多年平均降水量具有比较明显的地带性,蒸发量分布变化地带性不强.The spatial variability of the long-term mean annual precipitation and evapotranspiration were analyzed with the help of the Geostatics in this paper.The spatial variation of the precipitation and evapotranspiration over the Fenhe river basin were disclosed,and the Kriging method was used to interpolate.The results show that the precipitation and evapotranspiration have different spatial correlation in different partition range.And the distribution of the long-term mean annual precipitation has the clearer nelations to various regions than the evapotranspiration.

关 键 词：汾河流域 降水量和蒸发量 空间变异性 变异函数 Kriging法 

分 类 号：P426[天文地球—大气科学及气象学]