| 一个网格型松散结构分布式水文模型的构建 |
| |
| 引用本文： | 石朋,芮孝芳,瞿思敏,陈喜.一个网格型松散结构分布式水文模型的构建[J].水科学进展,2008,19(5):662-670. |
| |
| 作者姓名： | 石朋 芮孝芳 瞿思敏 陈喜 |
| |
| 作者单位： | 1.水文水资源与水利工程科学国家重点实验室, 江苏南京 210098; |
| |
| 基金项目： | 教育部科学技术研究重点项目，国家自然科学基金，水利部公益性行业科研专项，河海大学自然科学基金 |
| |
| 摘 要： | 根据流域降雨径流的基本过程,以蓄满产流理论为基础,建立了一个网格型松散结构的分布式流域水文模型。模型将流域离散为包含河道与不包含河道两种类型的单元格,以协克里金方法插值得到空间离散的降雨输入,考虑的产汇流物理过程包括降雨、植被截留及蒸散发、单元格产流、单元格汇流及河网汇流。模型结构简单,参数较少,在充分利用植被覆盖类型图及土地利用类型图的基础上,能够获得大部分参数的选用值。通过在长江三峡区间沿渡河流域的实际应用,模型计算成果令人满意。
|
| 关 键 词： | 分布式流域水文模型 空间离散 产汇流物理过程 网格型 数字高程模型 |
| 收稿时间： | 2007-07-23 |
Development and application of a grid-based distributed hydrological model |
| |
| SHI Peng,RUI Xiao-fang,QU Si-min,CHEN Xi.Development and application of a grid-based distributed hydrological model[J].Advances in Water Science,2008,19(5):662-670. |
| |
| Authors: | SHI Peng RUI Xiao-fang QU Si-min CHEN Xi |
| |
| Institution: | 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;2.College of Water Resources and Environment, Hohai University, Nanjing 210098, China |
| |
| Abstract: | A grid-based distributed hydrological model is proposed,which can simulate the physical processes of hydrological cycle,including precipitation,interception,infiltration,evaptranspiration,runoff generation and flow concentration in each grid and flow routing in river networks.To obtain rainfall values for each grid,the co-Kriging method integrating the altitude influences is applied.To compute evaptranspiration and interception,the land use-cover change information in study site is derived from remote sensing data.To compute the runoff generation in each grid,a relationship between topography index,which can be generated from the digitat elevation model (DEM),and the maximal soil moisture deficit is established.The flow routing paths of effective rainfall in each grid are derived from DEM.The model structure is simple and most parameters can be determined directly from DEM.The model is calibrated and applied to the Yanduhe Basin of Three Gorges flow reach of the Yangtse River.The simulation results are satisfactory. |
| |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
| 点击此处可从《水科学进展》下载免费的PDF全文 |
|
