Identification of urban disaster-causing rainfall and analysis of its key characteristics based on urban waterlogging hazard process

As the core element triggering urban waterlogging, disaster-causing rainfall is difficult to predict accurately due to its randomness and uncertainty. Identifying disaster-causing rainfall and clarifying its evolutionary characteristics and development patterns are of great significance for flood disaster reduction. The research takes the High-tech Zone of Zhengzhou City in China as the study area, constructs an SWMM model for urban waterlogging simulation, and identify the disaster-causing rain