2009 Volume 21 Issue 4 Pages 49-57
ABSTRACT : IPCC( Intergovernmental Panel on Climate Change) reported that the sea level increases between 0.18m to 0.59m for the next 100 year. Moreover, it is also reported that intensity of rainfall increases about 20% in some scenario analyzed by the Earth Simulator. In urban area where the combined sewer system is developed, the indisposed water flows into the rivers from the storm outlet. If the river level increases more than the water level at sewer pipe due to global warming, it seems that the river water flows into the sewer system and this flow behavior causes increasing of water disaster in urban area. In this study, the inundation due to interior runoff considering sea-level rise and rainfall change by global warming is treated by numerical analysis. The influence of global warming on the water disaster due to interior runoff is shown and the safety level of risk management for the water disaster is also discussed.
