Implementation of Subgrid-scale Spatial Variability of Parameters in a Regional Climate-hydrology Coupled Model

机译：区域气候水文学耦合模型中参数的亚网格尺度空间变异性的实现

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Climate variability has an important impact on various hydrologic processes. In order to represent small-scale hydrologic processes on the climate and hydrology interactions, it is necessary to couple the regional climate model with a fine-scale hydrologic model. In this paper, the parameterization of subgrid spatial variability is implemented in a coupled climate-hydrology model. The subgrid scale spatial variability in hydraulic conductivity and precipitation is considered in the simulation to represent the small scale hydrologic processes in the regional model. The results show that the simulated streamflow hydrograph at the basin outlet is consistent with the observed one. The incorporation of subgrid scale spatial variability in hydraulic conductivity and precipitation could improve the simulation greatly. It is necessary to incorporate these subgrid hydrologic processes to obtain the realistic and accurate simulations of hydrologic responses.

机译：气候多变性对各种水文过程都有重要影响。为了代表气候和水文相互作用的小规模水文过程，有必要将区域气候模型与精细水文模型结合起来。在本文中，亚网格空间变异性的参数化是在耦合的水文模型中实现的。模拟中考虑了水力传导率和降水的亚网格尺度空间变异性，以代表区域模型中的小尺度水文过程。结果表明，流域出口处的模拟水流图与观测值一致。将亚网格尺度的空间变异性纳入水力传导率和降水可以大大改善模拟效果。有必要将这些亚网格水文过程纳入其中，以获得对水文响应的真实，准确的模拟。

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来源
《Flood Forecasting and Water Resources Assessment for IAHS(International Association of Hydrological Sciences)-PUB》|2006年|3-12|共10页
会议地点 Beijing(CN)
作者
Chen Xing; Yu Zhongbo; Cui Guangbai;
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作者单位

Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098;

College of Water Resources and Environment, Hohai University, Nanjing 2100983;

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会议组织
原文格式 PDF
正文语种 eng
中图分类水资源调2查与水利规划;
关键词
climate-hydrology coupled model; subgrid; spatial variability; runoff generation mechanism;

机译：气候-水文耦合模型；亚电网空间变异性径流产生机制;

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Implementation of Subgrid-scale Spatial Variability of Parameters in a Regional Climate-hydrology Coupled Model

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