우리나라의 지역별 홍수피해 특성을 고려한 홍수피해 취약성 평가

Abstract

In this study, flood damage characteristics were classified by analyzing relationships of different types of flood damage with extreme rainfall. The Flood Damage Vulnerability Index (FDVI) was proposed considering regional flood damage characteristics in South Korea. The FDVI was calculated by averaging Flood Damage Vulnerability Rating (FDVr). The FDVr was determined based on the classification flood damage characteristics through introducing the sensitivity and adaptation capacity over the flood damage. The sensitivity is a hydrometeorological indicator which represents the scale of influence over the flood damage, whereas the adaptation capacity is an indicator of geographical, social and economic ability which represents the scale of defensive ability over flood damage. Using the FDVI, this study evaluated the flood damage vulnerability for 228 administrative districts in South Korea. In order to analyze the variability of flood damage vulnerability, the data period were divided into 1970s, 1980s, 1990s and 2000s. The temporal and spatial variation of flood damage vulnerability were also analyzed by constructing the FDVI map. The results show that the flood damage vulnerability was changed regionally from the past to the present. The recent highest flood damage vulnerability area was Gangwon-do. The FDVI would be utilized as a basic data for planning more rational countermeasures of preparation, response and restoration of flood damage.