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Title Transcription
サンイン チホウ ノ チュウショウ カセン コウズイ ノ キョクチ ニ カンスル ケンキュウ
Title Alternative (English)
Study on Record Flood Peaks of Smaller Rivers in Sanin Region
File
language
jpn
Author
Tanaka, Reijiro
Description
The distribution character of heavy rainfall in recent Japan sounds a warning to us that it is necessary to put into consideration of the record flood peak observed at a point in a river situated within a region in which the meteorological and hydrological conditions are almost simillar to each other, in determining the required spillway capacity to insure the safty of a dam. Unfortunately, however, the physical or statistical characteristics of the areal maximum of flood peak has not hitherto been studied enough to serve for the engineering practice in Japan.
This study has been carried out to cope with this situation from the view point that the flood peak discharge is a reflection of both characteristics of rainfall concentration in time and space and of runoff of the river basin.
The Hi and Gonokawa river basins have been chosen as the objective basin. The record of heavy rainfall observed at several points covered a river basin have been investigated to disclose the DAD characteristics of the basin. The DAD equation is then combined with the equation of the time of flood concentration to find a rational form of the equation for flood peaks. Finally, the equation for flood peaks is modified to express a curve enveloping record flood peaks in m^3/sec/<km>^^^2. The formula for enveloping curve has shown good fitness to record flood peaks in Sanin region.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
13
Start Page
124
End Page
133
ISSN
0370940X
Published Date
1979-12-15
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
Remark
開学30周年記念号
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