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Title Transcription
リュウイキ ナイ ノ コウウ ブンプ トクセイ オ クミコンダ コウズイ リュウシュツ カイセキホウ
Title Alternative (English)
A New Technique of Flood Runoff Analysis considering the Characteristics of Rainfall Distribution in a Watershed
File
language
jpn
Author
Fukushima, Akira
Mori, Yasushi
Description
A method of flood runoff analysis is proposed for routing spatiall distributed excess rainfall over a watershed to produce runoff at its outlet. The outline is as follws :
Two runoff models are constracted as distributed types. The first one is a modfied model from the Long- and Short- Terms Runoff Model(LST-II model), which is developed by Kadoya and Nagai(1988)for analyzing both flood and long term runoff successively. The other is developed for the Kinematic Wave Storage Model(KiWS model), which is combined kinematic wave runoff model with the LST-II model.
Both models are applicable to analyze a runoff phenomena considering the spatially distibuted precipitation obseryed by radar rainfall measurement system. In order to utilize the radar mesh data in runoff analysis, the routine phase of rainwater flow on hillslope is expressed by the series of the LST-II model or the KiWS one. The slope system of the runoff model is divided to any zones according to the slope length. At each zone of the slope system, the rainfall series at the unit or multiple mesh area by radar measurement are supplied as input data to the runoff model. In the series of the LST-II model, input rainfall is stored to upper part of first tank and distributed automaticaiiy each runoff components. In the series of the KiWS model, effective rainfall at each zone of the slope system is automatically culculated by utilizing the structure of the LST-II model. And stream flow in a stream network is expressed by the kinematic waye model. Finally, we illustrate the use of this method for a storm occured on the 24th of September, 1999 over the Hii River basin.
Journal Title
島根大学生物資源科学部研究報告
Volume
5
Start Page
27
End Page
36
ISSN
13433644
Published Date
2000-12-20
NCID
AA1112906X
Publisher
島根大学生物資源科学部
Publisher Aalternative
Shimane University, Faculty of Life and Environmental Science
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
Gyoseki ID
e18394
OAI-PMH Set
Faculty of Life and Environmental Science
Remark
1-12+ / 1996-2007
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