新安江模型产汇流理论的时空拓展研究

项目名称： 新安江模型产汇流理论的时空拓展研究

项目编号： No.50879017

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 张行南

作者单位： 河海大学

项目金额： 35万元

中文摘要： 建立室内降雨径流物理实验模型及数据信息采集与管理系统，研究流域包气带水分与径流运动三维模拟系统。室内实验和典型小流域研究相结合，研究流域坡面产汇流过程及新安江模型产汇流机制的理论基础，研制流域三维混合产汇流模型，提出新安江模型改进方案。研究流域流水网和分水岭推导方法，以及由流域分水岭进行流域离散的方法。研究径流汇流路径定量分析计算方法，地形、植被、土壤、地质等因素的定量特征值指标体系及计算方法。根据新安江流模型参数的物理定义，研究特征值与模型参数间的关系，寻求新安江模型参数的地理学计算方法。研究无资料地区的参数移用方法，绘制长江上游若干敏感模型参数分布图。在典型小流域上研究模型参数的时态参数修正方法。总体目标是为建立完全的分布式新安江模型奠定理论基础和定量计算方法。

中文关键词： 流域产汇流;分布式水文模型;模型参数与结构;地理信息系统

英文摘要： The indoor rainfall-runoff physical experiment platform with data collection and management system was established to study the movement of soil water and runoff. Indoor experiment was coupled with typical small watershed research to study the process of yield and concentration of slope runoff and mechanism of runoff yield and concentration in Xin'anjiang model. Three-dimensional mixed runoff yield model was presented to improve Xin'anjiang model. Derivation methods of drainage network and water divide as well as the discrete method of watershed based on water divide were studied. Quantitative index system and calculation method of characteristic values such as topography, vegetation, soil, geology and other factors was studied. Relationship between characteristic values and parameters was studied based on physical definitions of parameters, based on which geography calculation method of parameters was presented. Transferability of parameters in ungauged basins was studied and distribution of parameters in the upper reaches of the Yangtze was drawn. A fix method of temporal parameters was studied in the typical small watershed. The final target is to lay a theoretical foundation and quantitative methods of calculation to establish a perfect distributed hydrological model.

英文关键词： Watershed Runoff Yield and Concentration;distributed hydrological model;parameters and structure of model;GIS