GIS-based distributed technique for assessing economic loss from flood damage: pre-feasibility study for the Anyang Stream Basin in Korea |
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| Authors: | Choong-Sung Yi Jin-Hee Lee Myung-Pil Shim |
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| Institution: | (1) Technology Consulting Center, K-water, Sintanjin-Ro 560, Daedeok-Gu, Daejeon, 306-711, South Korea;(2) Division of Water and Environment, Korea Environment Institute, Jinheungno 290, Eunpyeong-Gu, Seoul, 122-706, South Korea;(3) Department of Civil Engineering, Inha University, Yonghyeon-dong 253, Nam-Gu, Incheon, 402-751, South Korea; |
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| Abstract: | Large national budgets are required for flood damage reduction projects, making it critical to ensure that public money used
therein be spent efficiently. Accordingly, reliable assessment of flood damage is a critical issue in analysis of the economic
aspects of flood damage reduction projects. To this end, this study aims to provide a GIS (geographical information system)-based
technique for distributed flood damage assessment. We consider two aspects of flood damage assessment from an engineering
and economic perspective, i.e. flood inundation analysis and multi-dimensional flood damage analysis (MD-FDA). To perform
this assessment, we used a GIS-based framework and data processing method to assess damages. The proposed methodology was
applied to flood control channel projects for flood disaster prevention in the Anyang Stream Basin in Korea and presents detailed
GIS data processing and assessment results. Findings from this study may contribute to the improvement of usability of MD-FDA
and may provide research directions for integrating economic and engineering factors. This distributed technique will also
assist in the decision-making process when evaluating the economic feasibility of flood damage reduction projects for structural
and non-structural measures. |
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