Flood Vulnerability Assessment for Prioritizing and Evaluating Rehabilitation of Ungauged Reservoirs Considering Climate Change

Water

Jung-Hun Song¹  Moon-Seong Kang²  Sang-Min Jun³  Jihoon Park⁴  Soonho Hwang⁵ 

[1] Department of Agricultural and Biological Engineering & Tropical Research and Education Center, University of Florida, Homestead, FL 33031, USA;Department of Rural Systems Engineering, Research Institute for Agriculture and Life Sciences, Institute of Green Bio Science and Technology, Seoul National University, Seoul 08826, Korea;Department of Rural Systems Engineering, Seoul National University, Seoul 08826, Korea;Prediction Research Department, Climate Services and Research Division, APEC Climate Center, Busan 48058, Korea;Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea;

关键词: flood vulnerability index;    ungauged reservoir;    reservoir rehabilitation;    climate change;   

DOI  :  10.3390/w12071901

来源: DOAJ

【 摘 要 】

The objective of this research was to apply the flood vulnerability assessment to ungauged reservoirs for prioritizing and evaluating the reservoir rehabilitation according to climate change. The flood vulnerability index (FVI) can quantitatively compare the flood vulnerabilities of the analysis targets and can be used for the relative comparison of hydraulic structures to determine the reinforcement priority. In this study, we proposed a simple FVI that contained exposure and adaptive capacity of the hydraulic structure. We selected ten dam heightening reservoirs in Korea and constructed data for flood vulnerability assessment. The FVI was calculated before and after the dam heightening to analyze the priority and effect of reservoir rehabilitation under climate change. Flood vulnerability indices were estimated for four periods (1995s: 1981–2010, 2025s: 2011–2040, 2055s: 2041–2070, 2085s: 2071–2100) and before/after the dam heightening project. As a result, flood vulnerability indices decreased after the dam heightening project for all reservoirs, and the indices have increasing tendencies in the future. The indices developed in this study can be useful to determine the priority and to evaluate the effect of rehabilitation for hydraulic structures.

【 授权许可】

Unknown