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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 ゾクホウ
Title Alternative (English)
Study on Record Flood Peaks of Smaller Rivers in Sanin Region(Second Report)
File
language
jpn
Author
Tanaka, Reijiro
Fukushima, Akira
Description
The circumstance of occurence of record heavy rainstorms alarms that the spillway capacity to insure the safety of a dam must be based on an intelligent study of all the available data as to great floods and heavy rainfalls in not a specific river watershed but a wide area under the same meteorological conditions. The enveloping curve of flood peak discharges at many stations with different drainage areas under the same meteorological conditions would give a solution for this problem.
This study aims to develop the equation of the enveloping curve rationally in Sanin Region considering the DAD characteristics of heavy rainfalls and the concentration time of flood runoff.
The Gonokawa, Hi, Tenjin and Sendai 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
14
Start Page
86
End Page
95
ISSN
0370940X
Published Date
1980-12-15
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
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