2021 Volume 77 Issue 2 Pages I_1399-I_1404
As a result of the studies that have been carried out in the Hokkaido region triggered by the heavy rains in Hokkaido in August 2016, a method for studying hydraulic control plans that takes climate change into consideration has been proposed. However, long-term investment is required to achieve the planned hydraulic control plan with a limited budget, and efficient investment is required during the investment period. In this study, by applying the modern portfolio theory to the uncertainty of damage reduction effect of river improvement caused by rainfall temporal spatial distribution, it became possible to discuss the efficient investment ratio for river improvement of each river in the basin using rainfall temporal spatial distribution obtained from a large amount of ensemble data.
PROCEEDINGS OF HYDRAULIC ENGINEERING
