LiDAR 고도자료와 LISFLOOD 모형을 이용한 홍수범람해석

Abstract

Great loss of life and property has been occurred by the severe flood globally. In Korea, a flood inundation map is used as one of the non-structural measures for reducing flood damage, and various inundation models have been studied for flood inundation analysis. This study applies LiDAR data and LISFLOOD model for flood inundation analysis and discusses the the modeling results from levee breaching 2013년 8월 14일 접수 Received on August 14, 2013 / 2013년 9월 16일 수정 Revised on September 16, 2013 / 2013년 10월 7일 심사완료 Accepted on October 7, 2013 * 본 연구는 한국건설기술연구원 13주요-시드사업(과제명-지방하천 홍수위험지도 제작기술 개발)의 연구비지원에 의해 수행되었음. 1 한국건설기술연구원 수자원연구실 Water Resources Research Division, Korea Institute of Construction Technology ※ Corresponding Author E-mail : ckchoi@kict.re.kr Analysis of Flood Inundation Using LiDAR and LISFLOOD Model 2 scenarios for evaluating the applicability of the model to stream inundation modeling. In the results of LISFLOOD modeling, maximum inundation area was similar to the inundation map by HEC-RAS model just less than 4%. The inundation area by each levee breaching scenario showed the difference from 0.2% to 6.5%. Inundation processes were different each other according to the position of levee breach point, and maximum inundation area and depth were changed by the flow direction of stream and flood plain. This study shows that LISFLOOD model can be applied properly to stream inundation analysis using various inundation scenarios.