Study of Urban Flooding Response under Superstandard Conditions

Abstract

Superstandard conditions refer to extreme rainfall and river flooding that exceed the flood control system or flood control works. In order to explore the influence of superstandard conditions on urban waterlogging, based on the MIKE FLOOD platform, this paper takes the downtown area of Zhoukou as the research object, and it conducts waterlogging simulation in this area under the extreme rainfall conditions of once in 20 years and once in 50 years combined with the ultra-high water level of the river. The simulation results of inundation depth, inundation range and drainage capacity of a self-flowing river are compared and analyzed. The results show that heavy rainfall is the main cause of waterlogging disaster. When extreme rainfall and river flood occur at the same time, the artesian drainage capacity of the pipeline is seriously affected due to the high water level of the river. The city has a large amount of water, and when the river embankment overflows, it poses a serious threat to the safety of the city.

The Atmospheric Dynamics Related to Extreme Rainfall and Flood Events during September-October-November in South Sulawesi

“…Conversely, the rainy seasons in eastern regions generally begin around March/April and the dry season begins about July/August. However, the beginning of the rainy and dry seasons in the southern and northern regions is more varied (Jian et al, 2023). In South Sulawesi, the peak of the rainy season may differ, but the peak of the dry season is typically in August/September (BMKG, 2021).…”