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Title Transcription
チエン ニュウリョク コウウ ケイレツ ヲ モチイタ チョリュウ リュウシュツ モデル ト ソノ テキヨウ レイ
Title Alternative (English)
A Storage-based Runoff Model using the Delayed Input Rainfall Sequences and Its Application
File
language
jpn
Author
Fukushima, Akira
Description
The purpose of this paper aims to improve the hydrological prediction accuracy of the storaged-based runoff model by introducing the delayed input rainfall sequences.
In this paper, a storaged-based runoff model, in which the LST-Ⅱ model(the Long- and Short Terms Runoff Model Ⅱ)proposed by Kadoya and Nagai is modified, is developed by including the followings: the estimation method of effective rainfall series forming the surface runoff and/or prompt subsurface runoff, and the lag time of these runoff components in the runoff process of river basin. The outline are as follows:
(1)The observed areal mean rainfall sequence is transformed by the delayed function. The function is evaluated from the distribution characteristics of slope length in a basin model and the equation of lag time applied the practical formula for the concentration time.
(2)By introducing the functional structure of rainwater infiltration in the upper tank of LST -Ⅱ model, the effective rainfall sequence concerned in the surface runoff and/or prompt subsurface runoff is automatically in the proposed model named as the Applied LST-Ⅱ model.
(3)The Applied LST-Ⅱ model is identified by modifying the SP method(Standardized Powell Method)proposed by Kadoya and Nagai.
(4)By a flood runoff analysis using the delayed input rainfall sequence as input data to the Applied LST-Ⅱ model, it is showned that the proposed method is expected to apply as a practical use in the Hii River basin of911.4km2 and Otonashi River basin of0.296km2.
Journal Title
島根大学生物資源科学部研究報告
Volume
10
Start Page
37
End Page
46
ISSN
13433644
Published Date
2005-08-31
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
e18390
OAI-PMH Set
Faculty of Life and Environmental Science
Remark
1-12+ / 1996-2007
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