Title :
GIS Based Urban Flood Inundation Modeling
Author_Institution :
Sch. of Life Sci., Yunnan Univ., Kunming, China
Abstract :
Flooding is a complex process affected by many factors in which the flood discharge characteristics and the topography of the inundated region are of great importance. This study aimed at the development of a manageable method for flood inundation modeling using GIS. The study shows that through the inundation modeling by combining DEM and actually observed floodwater level values and maximum discharge runoff, the inundated area can be accurately simulated and the water depth distribution in the inundated area can be calculated for a flood with a 20 years return period, as occurred on July 26th, 1998. The results indicate that GIS can contribute to more accurate flood modeling.
Keywords :
digital elevation models; floods; geographic information systems; topography (Earth); DEM; GIS based urban flood inundation modeling; flood discharge characteristics; flood modeling; floodwater level values; inundated region; maximum discharge runoff; topography; water depth distribution; Analytical models; Cities and towns; Data models; Fault location; Floods; Geographic Information Systems; Rivers; Flood; GIS; Inundation; Wenshan City; modeling;
Conference_Titel :
Intelligent Systems (GCIS), 2010 Second WRI Global Congress on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-9247-3
DOI :
10.1109/GCIS.2010.264
