Abstract

본 연구에서는 2012년 구미산업공단에서 발생한 불산 가스 누출 사례를 대상으로 CCTV 영상 및 항공사진 분석을 통해서 재난발생 피해확산범위를 추정하고 피해우심지역 추출을 위한 과학적 재난분석 접근방법을 제안하였다. 실제 사고현장에서 수집된 CCTV 영상에서 누출가스 확산방향을 찾고 AWS(Automatic Weather System) 관측 자료와 비교를 통해 분석결과를 검증하였다. 또한, 항공사진으로부터 사고발생 후 피해범위를 추출하였다. 분석결과에 따르면, 피해우심지역은 사고발생지점으로부터 반경 1 km 이내의 지역으로 나타났으며, 기존 관측 자료 및 대기 모델링 분석에서 얻을 수 없는 유용한 정보를 CCTV 영상을 통해 찾을 수 있었다. In this study, a new methodology is proposed to estimate the diffusion range and the damaged area by analysing the CCTV(Closed Circuit Television) image and aerial photograph for the Hydrofluoric Acid Gas leakage event in 2012. The CCTV images and the aerial photograph were used to estimate the diffusion direction of the gas and the damaged area respectively, which was verified by comparing with AWS(Automatic Weather System) observations around the scene of accidents. As the results, it was found that the damage area estimated by the new methodology could be within a 1km radius from the leakage point, which could not be found out through the coarse ground observations and the atmospheric dispersion modeling.

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