CASC2D模型在半湿润半干旱地区的应用与研究  

The Application and Research of CASC2D Model in Semi-humid and Semi-arid Areas

作　　者：张汉辰 李致家[1] 钟栗[1] 屈晨阳[1] 汪煜坤 

机构地区：[1]河海大学水文水资源学院,南京210098

出　　处：《中国农村水利水电》2015年第10期62-65,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(41130639;51179045);水利部公益项目(201301068)

摘　　要：概念性的分布式水文模型由于其性较好的实用性取得了快速的发展,特别是基于蓄满产流机制的分布式水文模型已经在湿润地区得到了较广泛的应用,但是在半湿润半干旱地区却得不到很好的应用效果。现选取基于物理基础的采用超渗产流机制的分布式水文模型在半湿润半干旱地区进行应用,通过对陕西地区的3个流域的29场洪水进行模拟,研究CASC2D模型在半湿润半干旱地区水文模拟及洪水预报情况,认为模型可以用于中小尺度半湿润半干旱地区,并且有较好的模拟结果。Conceptual distributed hydrological model has developed rapidly due to its good practical applicability ,especially the dis‐tributed hydrological model based on storage-excess runoff mechanism in humid areas .But its practical effect in semi-humid and semi-arid areas is not good enough .Now apply physically-based distributed hydrological model based on infiltration -excess runoff mechanism to semi-humid and semi-arid area .According to the simulation of the 29 flood events in the 3 river basins in Shanxi ,as well as the research of the hydrological simulation and flood forecasting for CASC2D model in semi-humid and semi-arid area ,the model can be applied to semi-humid and semi-arid areas with medium or small scale ,and has a good simulation effect .

关 键 词：基于物理基础 分布式 CASC2D模型 超渗产流 下垫面 半湿润半干旱 

分 类 号：P334.92[天文地球—水文科学]