A hillslope-based hydrological model using catchment area and width functions

被引：125

作者：

Yang, D ^{[1
]}

Herath, S ^{[1
]}

Musiake, K ^{[1
]}

机构：

[1] Univ Tokyo, Dept Civil Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | 2002年 / 47卷 / 01期

关键词：

hydrological model; hillslope; discretization scheme; area function; width function;

D O I：

10.1080/02626660209492907

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

A flow-interval hillslope discretization scheme is proposed for catchment hydrological modelling. By this scheme, a two-dimensional catchment is simplified into a one-dimensional cascade of flow intervals linked by the main stream. Each flow interval comprises a set of parallel hillslopes. The hillslope is the fundamental computational unit in the hydrological model providing lateral inflow to the main stream. The size of hillstope is determined by the catchment area and width functions. Catchment runoff is the total of hillslope responses through the river routing. Tests in four Japanese catchments showed that the model performed well on simulating the overall water balance, general flow pattern, and daily and hourly hydrographs of a whole catchment, as well as simultaneous simulation in different subcatchments. Characteristics of catchment hydrological responses and model applicability are discussed.

引用

页码：49 / 65

页数：17

共 42 条

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