Journal of the Society of Disaster Information (한국재난정보학회 논문집)

The Korean Society of Disaster Information (한국재난정보학회)
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Development of a Flood Loss Estimation Tool within GIS software

GIS 소프트웨어 기반의 홍수 손실 평가 툴 개발

  • Yu, Soonyoung (Research Institute of Social Criticality, Pusan National University) ;
  • Lee, Sunju (Department of Mathematics, Chungnam National University) ;
  • Kim, Sungwook (Geo-infomation Rearch Lab, GI Co. Ltd.) ;
  • Choi, Eunkyeong (Geo-infomation Rearch Lab, GI Co. Ltd.) ;
  • Lee, Kilha (Department of Civil Engineering, Daegu University) ;
  • Choi, Bonghyuck (Geotechnical Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
  • Received : 2015.04.02
  • Accepted : 2015.09.14
  • Published : 2015.09.30
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Abstract

A flood loss estimation toolbox was developed within GIS software. This toolbox is for anyone who is interested in the flood loss estimation, and uses data accessible to public. In particular, the loss estimation framework in the toolbox is distinct in that the inventory items are individually dealt with. The toolbox was applied to estimate the economic loss from a levee failure event in 2002. The estimated loss was a little larger than the reported value. The difference is probably due to the asset values and the damage functions for each inventory item, which have to be updated.

누구나 쉽게 사용할 수 있도록 상용 GIS 소프트웨어에서 구동되는 홍수 손실 평가 툴박스을 개발하였다. 피해목적물의 위치 정보를 확인하기 위해서는 비교적 쉽게 구할 수 있는 전국 연속수치지형도를 활용하였다. 툴박스는 피해목적물의 개별 위치 정보 및 속성 정보를 활용하여 홍수 손실을 평가하는데, 이로 인하여 행정구역의 통계정보에 기초하는 기존의 홍수 손실 평가 방법을 크게 개선시켰다고 할 수 있다. 홍수 손실 평가 툴박스를 이용하여 2002년에 발생한 제방 붕괴 사건의 경제적 손실을 평가해 보았다. 계산 결과는 보고된 피해액 보다 다소 높게 나타났으며, 이는 피해목적물의 자산가치 정보와 손상함수 정보가 정확하지 않았기 때문으로 판단된다. 앞으로 자산정보 및 손상함수가 지속적으로 보완된다면, 본 연구에서 개발된 홍수 손실 평가 툴은 홍수 저감 정책을 마련하는데 크게 기여할 수 있을 것으로 보인다.

Keywords

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