流域地形量が出水ピークに及ぼす効果に関する研究

Abstract

It will be certain that drainage-basin geometry has some effect on peak flow more orless. But there are many factors of drainage-basin geometry of which effect is not clear uponpeak flow. Effect of Horton's mumbers which are nondimensional factors of drainage-basingeometry, upon peak flow is also not clear.The author tried to make clear what kind of effect and how much effect have Horton'snumbers on peak flow, by numerical experimentation on the eightyfive 3rd order drainagebasin models which have the same area and relief each together.This approach leads to say that macroscopic effect of combination of Horton's numbersis a little lager than that of the longest water course and its average slope, and that each ofHorton's numbers has macroscopically the similar effect that the smaller Horton's numberthe lager peak flow.