摘要
通过ArcView软件对淮河息县以上流域进行了流域信息的提取,并利用VB编程提取出该流域的地形指数与河网等流时线,使之成为TOPMODEL模型的客观物理参数。为了客观表示流域的初始状态,还建立了初始土壤缺水量与地形指数之间的关系式。最后将TOPMODEL模型和新安江模型分别应用于该流域的洪水模拟中,并在径流深相对误差、洪峰相对误差、确定性系数等方面进行了比较和分析。
Through the use of ArcView software and Visual Basic programs, topography parameters of the Huaihe River Basin have been extracted, including the extraction of topographic index and distance-accumulated-area curve and so on. Make them to be the objective physical parameters for the input of the TOPMODEL. In order to present the initial state of this basin, the relationship between initial soil moisture deficit and topographic index is established. Finally, TOPMODEL and Xin＇anjiang Model are applied for flood simulation to the upper Xixian catchment respectively. Then we compare and analyze the runoff-depth relative error, flood-peak relative error and Nash-Sutcliffe in two models.
出处
《水力发电》
北大核心
2007年第10期14-18,共5页
Water Power
基金
国家自然科学基金资助项目(50479017)
淮河流域气象开放研究基金资助项目
