洪水比流量に関する研究

Abstract

It is very significant to estimate a probable maximum discharge of a flood, which willoccur in the specified river basin, in the sence of prevention of water hazards. Manyformula of the specific discharge of flood peak have been proposed but most of them areobtained empirically after plotting observed flood peaks against drainage area on a graphpaper. This paper describes the occurrence condition of flood peak in relation to rainfallpattern and system of stream net, and the curve on a log-log paper, which will give theprobable maximum specific discharge of flood peak because this curve is derived from thepast records of extremely large and heavy rainfalls.