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Title Transcription
ヒョウメン リュウ モデル ノ シュウチュウカ ト サイテキ モデル テイスウ ノ カンケイ
Title Alternative (English)
Relation of Lumping to Optimum Model Parameters in Overland Flow Model
File
language
jpn
Author
Fukushima, Akira
Description
This paper aims to discuss the relation between basin characteristics and runoff model parameters. As a flood runoff model, kinematic wave model of overland flow type is examined by dealing with the data in the Shimokari natural hilly watershed of 1.3<km>^^^2, the 93% area of which is covered by bushes and bamboo groves. First, a standard watershed model is constructed by applying a stream network system, in which first order streams are defined by using the ratio of wide and length in the contour crenulation on a topological map. The lumped watershed models are based on both Strahler's and N_1 ordering systems. Second, the optimum parameters of overland flow model is identified for standard and lumped watershed models. And the estimating formulae for optimum model parameters have been proposed in relation to the contributing slope length in the ordered watershed modeL
Third,simplified runoff model of overland flow type omitted the calculation of channel flow is examined and the applicability is evaluated in relation of lumping the watershed model.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
24
Start Page
158
End Page
166
ISSN
0370940X
Published Date
1990-12-21
NCID
AN00108015
Publisher
島根大学農学部
Publisher Aalternative
Shimane University, Faculty of Agriculture
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
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