Study on Record Flood Peaks in Japan

Abstract

The equation of the enveloping curves for regional record flood peaks of the form of specific discharge is investigated, logically and verifically. First, the functional form of the equation is examined from the theoretical viewpoint. Next, the parameters contained in the equation are estimated through the heavy rainfall data obtained in a sample river basin. Finally, These equations are synthesized with due consideration of the consistency of the parameters so that they may be applied to almost all rivers in Japan.