黑河上游环境要素场对降雨汇流过程的响应  

The Response of Environment Element Variations in Upper Reach of Heihe River Valley to Watershed Flow Convergence Process

作　　者：高艳红[1] 吕世华[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《高原气象》2004年第2期184-191,共8页Plateau Meteorology

基　　金：中国科学院知识创新工程方向性项目"内陆河流域(黑河)水-土-气-生观测与综合研究"(KZCX3 SW 329);国家自然科学基金重点项目"绿洲系统能量与水分循环过程观测与数值研究"(40233035);国家自然科学基金项目(40075022)共同资助

摘　　要：运用包含土壤、植被陆面过程OSULSM的中尺度大气模式MM5,将分布式水文模式DHSVM中汇流参数化方案与其耦合,成功地模拟了2002年7月黑河流域上游的洪水事件,在大气模式中实现了地表水的再分布。综合考虑了陆地水文状况与气候之间的相互影响,分析了地表特征场以及大气要素场随汇流过程的变化。The mesoscale atmospheric model MM5 coupled with the Oregen State University Land Surface Model (OSULSM) was used, in which the four-layer soil scheme and the canopy scheme are included. The flood event of Heihe river basin in July 2002 was successfully simulated using this coupling model. Some environmental element changes during the confluent process of the flood event were analyzed.After adding the slope convergence,the atmospheric model redistributesthe surface water. The redistribution of the surface water changes firstthe land surface conditions and thenthe atmospheric element fields gradually. In whole, the interaction between land surface hydrology process and the local climate change was considered synthetically.

关 键 词：分布式水文模式 中尺度大气模式 汇流过程 黑河流域 

分 类 号：P339[天文地球—水文科学]