Distributed Hydrological Model of Watersheds in the Upper Reaches of the Fenhe River

SUN Xi-huan; ZHANG Bai-zhi; WANG Zhi-zhang

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Distributed Hydrological Model of Watersheds in the Upper Reaches of the Fenhe River

- Distributed Hydrological Model of Watersheds in the Upper Reaches of the Fenhe River
- Bulletin of Soiland Water Conservation Vol. 27, Issue 3, Pages: 89-92(2008)
- 作者机构：
  
  1. 太原理工大学水利科学与工程学院,山西,太原,030024
  2. 陕西省杨凌区政府水务局, 陕西杨凌,712100
- 作者简介：
- 基金信息：
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- Published：2008
- 稿件说明：
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SUN Xi-huan, ZHANG Bai-zhi, WANG Zhi-zhang. Distributed Hydrological Model of Watersheds in the Upper Reaches of the Fenhe River[J]. Bulletin of Soiland Water Conservation, 2008, 27(3): 89-92.
DOI：

SUN Xi-huan, ZHANG Bai-zhi, WANG Zhi-zhang. Distributed Hydrological Model of Watersheds in the Upper Reaches of the Fenhe River[J]. Bulletin of Soiland Water Conservation, 2008, 27(3): 89-92. DOI：

摘要

根据汾河上游流域的水文特性

采用以坡度、坡向为主要因素

按照集水区自然分水线划分子流域的流域离散方法

将SCS产、汇流模型与马斯京根法结合用于计算该地区的径流过程

建立了适于该地区

基于流域尺度的次降雨—径流分布式水文模型。选用该地区的典型流域——岚河流域与分布式模型耦合

进行模拟。经实测资料与模拟结果的分析比较

结果表明

该模型具有一定的精度

径流量合格率及汇流合格率分别达到70%和80%

且计算流量过程与实测流量过程吻合较好

所建模型基本适用于该地区的降雨—径流计算。

Abstract

Through the analysis of hydrological characteristics of watersheds in the upper reaches of Fenhe River

a distributed hydrological model at a catchment scale was constructed.The runoff yielding and sink flow model of SCS and the Muskingum method were firstly combined to determine discharge process in the area.Moreover

taking slope angle and slope orientation as the main indexes

a watershed was divided into sub-catchments by natural draining divide.To test accuracy of this model

the catchment of the Lanhe River in the area was chosen as a typical catchment.Results show that calculated runoff yielding and sink flow account for 70% and 80% of the observed dada

respectively

and simulated discharge process is basically coincident with observed discharge process.The model is suitable to modeling runoff yielding and sink flow in the area.

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