Vol.6-2 |
|
豪雨の集中度に関する研究
-昭和57年7月豪雨の1時間雨量の面的集中度特性について-
Study on Concentration of Heavy Rainfall
-Areal Concentration of One-hour-rainfall in Case of the Heavy Rainfall
on July l982-
|
松田 誠祐*
Seisuke MATSUDA* |
Abstract
In this study author defined centrl concentration of hravy rainfall by
utilizing the DA-curve formula which describes the characteristics of
areal concentration of heavy rainfall and studied some charateristics
of concentration of one-hour-rainfall of the Heavy Rainfall on July 1982.
K, central concectration factor of areal distribution of the rainfall
is given by K≒Iog(P0/Pm). Parameter n which represents concentration around
the center of the rainfall is celculated by
n=(log[1-{log(P/Pm)}/K])/log(A/Am)
where, P, P0 and average rainfall amount on the area A and at the peak
point and on the typical area Am respectively(0.1≦A/Am≦0.7).
【キーワード】:集中豪雨, 集中度, DA解析
*高知大学農学部
Faculty of Agriculture, Kochi Univ.
|