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引用本文:童冰星,姚成,李致家,黄小祥.一种通过地形指数提取流域自由水蓄水容量空间分布的方法.湖泊科学,2017,29(5):1238-1244. DOI:10.18307/2017.0522
TONG Bingxing,YAO Cheng,LI Zhijia,HUANG Xiaoxiang.A method to obtain the spatial distribution of free water storage capacity based on topo-graphic index. J. Lake Sci.2017,29(5):1238-1244. DOI:10.18307/2017.0522
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一种通过地形指数提取流域自由水蓄水容量空间分布的方法
童冰星, 姚成, 李致家, 黄小祥
河海大学水文水资源学院, 南京 210098
摘要:
对于分布式水文模型而言,如何获得参数的空间分布是模型应用的重点和难点问题.本文将分水源参数中的敏感参数——自由水蓄水容量为研究对象.建立地形指数与自由水蓄水容量的函数关系,以此提取流域内的自由水蓄水容量空间分布.最后利用本方法提取了陕西省陈河流域的自由水蓄水容量空间分布,并将之作为栅格型新安江模型的参数进行洪水模拟演算.应用结果表明本文提出的方法得到了理想的模拟结果.该方法以物理规律为基础能较为准确地计算出流域内自由水蓄水容量的空间分布,为分布式模型的发展奠定了坚实的基础.
关键词:  参数的空间分布  自由水蓄水容量  地形指数  分布式水文模型  新安江模型  陈河流域
DOI:10.18307/2017.0522
分类号:
基金项目:国家自然科学基金项目(51679061,41130639)、国家重点研发计划项目(2016YFC0402705)、水利部公益性行业科研专项(201501022)和中央高校基本科研业务费专项(2016B04714)联合资助.
A method to obtain the spatial distribution of free water storage capacity based on topo-graphic index
TONG Bingxing, YAO Cheng, LI Zhijia, HUANG Xiaoxiang
College of Hydrology and Water Resource, Hohai University, Nanjing 210098, P. R. China
Abstract:
Obtaining the spatial distribution of free water storage capacity is a significant matter for distributed hydrological model.In this paper,the free water storage capacity,a parameter that has a significant effect on the simulation results of model,was se-lected as a research object.We have established the function relationship between topographic index and free water storage capacity to get the spatial distribution of free water storage capacity.And then this method has been applied in Chenhe Catchment which is located in Shanxi Province.Its spatial distribution of free water storage capacity could be derived by the method.A distributed mod-el,Grid-Xin'anjiang model,is obtained based on the spatial distribution of free water storage capacity.Application of the model to the Chenhe Catchment in Shanxi Province shows that this method is effective.This method,based on the laws of physic,can calcu-late the spatial distribution of free water storage capacity with higher accuracy.Thus,it provides a solid basis for development of a distributed model.
Key words:  Spatial distribution parameters  free water storage capacity  topographic index  distributed hydrological model  Xin'anjiang model  Chenhe Catchment
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