도시유역 물순환 분석체계 개선연구 - 서울특별시 효자동지역을 중심으로 -
The Improvement of Water Cycle Analysis System in Urban Watershed - Focused on Hyoja-dong in Seoul -
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초록
최근 기후변화로 홍수, 국지성호우, 태풍 등의 재해가 매년 발생하고 있다. 과거 피해가 빈번히 발생하는치수 위주의 연구가 진행되었으나, 최근 도시물순환에 대한 관심이 높아지면서 물순환 관리에 대한 인식이증가하고 있다. 물순환을 관리하는 가장 우선되어야 하는 것은 정량적인 물관리 목표를 설정과 정확한물순환 적용지점을 설정하는 것이라 할 수 있다. 이에 본 연구에서는 기존 도시유역에서 토지피복도만을활용한 물순환 분석의 한계점을 개선하고자 중첩지도 분석을 실시하여 토지피복도로 분석하지 못한 지점을 건물면적과 건물정보가 통합된 분석을 실시하였다. LID 시설물의 효과 검토를 위해 모델을 활용하여서울특별시 효자동 지역을 대상으로 분석하였으며, 그 결과 재현기간 5년, 10년 강우지속기간 10분에서첨두홍수량은 28%, 30% 저감, 유출체적은 18%, 14% 저감, 침수면적은 92%, 93%가 저감된 것으로 분석되었다. 주제어：
Abstract
Recently, disasters such as floods, localized heavy rains, and typhoons have occurred every year due to climate change. In the past, studies focused on flood control, where damage frequently occurred, but recently, as interest in urban water circulation has increased, awareness of water circulation management has increased. The most important thing to manage the water cycle is to set quantitative water management goals and the exact water cycle application point. Therefore, in this study, to improve the limitations of the water cycle analysis using only the land cover map in the existing urban watershed, an overlapping map analysis was conducted, and an integrated analysis of the building area and building information was conducted for the points where the land cover map was not analyzed. To review the effectiveness of LID facilities, the model was used to analyze Hyoja-dong, Seoul. It was analyzed that peak flood volume was reduced by 28% and 30%, the Return period 5 years, 10 years Rain duration 10min runoff volume was reduced by 18% and 14%, and the flooded area was reduced by 92% and 93%.
참고문헌 (11)
- 박지영, "도시 개발 전․후 LID 기법 적용에 따른 물수지 및 오염부하 변동 특성", 대한환경공학회지, 35(11), pp.795~802 (2013), 대한환경공학회[DOI]
- 김재문, "수변도시의 물순환 목표 산정 방안 연구", 한국산학기술학회논문지, 21(12), pp.475~487 (2020), 한국산학기술학회[DOI]
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