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Flood Simulation of Upriver District Considering an Influence of Backwater
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 Title & Authors
Flood Simulation of Upriver District Considering an Influence of Backwater
Um, Dae Yong; Song, Yong Hyun;
This study aims to predict inundation and flood-stricken areas more accurately by simulating flood damage caused by reversible flow of rain water in the upper water system through precise 3D terrain model and backwater output. For the upstream of the South Han-River, precise 3D terrain model was established by using aerial LiDAR data and backwater by area was output by applying the storm events of 2002 including the history of flood damage. The 3D flood simulation was also performed by using GIS Tool and for occurrence of related rainfall events, inundation events of the upriver region of water system was analyzed. In addition, the results of flood simulation using backwater were verified by making the inundation damage map for the relevant area and comparing it with flood simulation`s results. When comparing with the results of the flood simulation applying uniformly the gauging station`s water surface elevation used for the existing flood simulation, it is found that the results of the flood simulation using backwater are close to the actual inundation damage status. Accordingly, the causes of flood occurred in downstream of water system and upstream that has different topographic characteristics could be investigated and applying the simulation with backwater is proved more proper in order to procure accuracy of the flood simulation for the upriver region.
Flood;Simulation;Backwater;Upper water system;GIS;
 Cited by
Kyung Rok, Kim (2007), Development of Integrated Hydraulic/Hydrologic Model within GIS Environment, MA, Kyngpook National University.

Byung Chul, Lee (2007), A study on Making Flood Evacuation Map Using Geographical Information System, MA, Miryang National University.

Chul Hyuk, Sin (2006), Mapping the Flood Hazard by the Application of GIS, MA, Kangwon National University.

Jung Gi, Park (2011), A study on the Flood Map Prodection Inaccessible Area Using GIS Technique, MA, Sungkyunkwan University.

Deok Gu, Ko (2006), Development of River Analysis System with GIS and Inundation Analysis in a Pilot Area, Minstry of Science and Technology.

In Tae, Yang, Uk Nam, Kim & Jae Chol, Kim (2001), The Time Prediction for Escape from Flood Using GIS : The Case of Chun-Chon City, Korean Society of Survering Geodesy Photogrammetry and Cartography, Vol.19 No.3.

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Nam Ung, Jang (2002), A Study on Floodplain Delineation Using the GIS, MA, Kyunghee University.

Souk Gyu, Kim & Yong Ho, Cho(2005), Cartography of Disaster Using GIS, The Korean Association of Geofraphic Information Studies, Vol. 7, No. 2.

Seung Seop, Ahn, Jeung seok, Lee & jong ho, Kim (2004), Analysis of Flood Inundation Area using HEC-RAS/GIS, The Korean Environmental Sciences Society, Vol. 13, No. 1.

Hwan Hee, Yoo, Weon Seok, Kim & Seong Sam, Kim (2006), Inundating Disaster Assessment in Coastal Areas Using Urban Flood Model, Korean Society of Survering Geodesy Photogrammetry and Cartography, Vol. 24, No. 3.