Simulation of rainfall-runoff and watershed convergence process in the upper reaches of Heihe River Basin,July 2002

作     者：GAO Yanhong L(U) Shihua CHENG Guodong 

作者机构：Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2004年第47卷第Z1期

页      面：1-8页

核心收录：

学科分类：07[理学] 08[工学] 0708[理学-地球物理学] 0704[理学-天文学] 

基　　金：co-supported by Orientation Project of Knowledge Innovation Program,Chinese Academy of Sciences(Grand No.KZCX3-SW-329 KZCX1-09) Key Program Project of National Natural Science Foundation of China(Grant Nos.40233035,40075022) 

主　　题：distributed hydrology-soil-vegetation model, mesoscale atmospheric model, watershed flow concentration process. 

摘      要：The watershed flow concentration scheme in the distributed hydrology-soil- vegetation model (DHSVM) is coupled with the mesoscale atmospheric model MM5 version 3.5, in which the Oregen States University land surface model (OSULSM) was involved. The flood event which happened in July 2002 in the upper reaches of Heihe river basin is simulated and the surface flow convergence process is shown with this coupled model. It has been concluded that times water head reaches each place of the basin are different. Water amount at each point is split-flow proportionally as the drops in elevation between it and neighbor points. Large part of the water amount pass away in greater slope direction and small part pass away in smaller slope *** of the slope convergence makes the atmospheric model redistributes the surface water laterally.