Browse > Article

Information of Flood Estimation using GIS for Three Dimensional Visualization  

Lee, Jin-Woo (한양대학교 대학원 토목공학과)
Kim, Hyung-Jun (한양대학교 대학원 토목공학과)
Cho, Yong-Sik (한양대학교 토목공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.8, no.2, 2008 , pp. 159-164 More about this Journal
Abstract
This study simulated the flood inundations of the Nakdong River catchment running through Yangsan, a small city located in the south eastern area of Korea by using the depth averaged two-dimensional hydrodynamic numerical model. The numerical model employs the staggered grid system including moving boundary and a finite different method to solve the Saint-Venant equations. A second order upwind scheme is used to discretize the nonlinear convection terms of the momentum equations, whereas linear terms are discretized by a second order Leap-frog scheme(Cho and Yoon, 1998). The numerical model was applied to a real topography to simulate the flood inundation of the Yangsan basin in Yangsan. The numerical result for urban district was visualization for three dimension. These results can be essentially utilized to construct the three dimensional inundation map after building the GIS-based database in local public organizations in order to protect the life and property safely.
Keywords
Saint-Venant equation; inundation; Moving boundary; Staggered grid; Three dimensional inundation map;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 원성연, 윤용남 (1993) 도시유역의 홍수량 산정을 위한 도시유출 모형 연구. 대한토목학회논문집, 대한토목학회, 제13권, 제5호, pp. 135-146
2 한건연, 최규현, 이창희 (2002) 도시침수해석을 위한 2차원 모형의 개발. 한국수자원학회 학술발표회 논문집(I), 한국수자원학회, pp. 275-280
3 Cho, Y.-S., and Yoon, S.-B. (1998) A modified leap-frog scheme for linear shallow-water equations. Coastal Engineering Journal, Vol. 40, No. 2, pp. 191-205   DOI   ScienceOn
4 유재홍, 김형준, 조용식 (2005) 홍수범람모의를 위한 내외수 연계 모형 개발. 한국방재학회논문집, 한국방재학회, 제5권, 제4호, pp. 1-8
5 Shyy, W. (1985) A study of finite difference approximation to steady-state, convection dominated flow problems. Journal of Computational Physics, Vol. 57, pp. 408-415
6 신영호 (2002) 홍수지도 시범제작 방안. 한국수자원학회지, 한국수자원학회, 제35권, 제4호, pp. 38-49   과학기술학회마을
7 이주헌, 최종진, 이희철, 이은태 (2003) 고해상도 수치고도모형을 활용한 홍수범람도의 작성. 대한토목학회논문집, 대한토목학회 , 제23권, 제6B호, pp. 471-478