Articles | Volume 25, issue 9
Hydrol. Earth Syst. Sci., 25, 4701–4717, 2021
https://doi.org/10.5194/hess-25-4701-2021
Hydrol. Earth Syst. Sci., 25, 4701–4717, 2021
https://doi.org/10.5194/hess-25-4701-2021

Research article 31 Aug 2021

Research article | 31 Aug 2021

The impact of the spatiotemporal structure of rainfall on flood frequency over a small urban watershed: an approach coupling stochastic storm transposition and hydrologic modeling

Zhengzheng Zhou et al.

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Short summary
The role of rainfall space–time structure in flood response is an important research issue in urban hydrology. This study contributes to this understanding in small urban watersheds. Combining stochastically based rainfall scenarios with a hydrological model, the results show the complexities of flood response for various return periods, implying the common assumptions of spatially uniform rainfall in urban flood frequency are problematic, even for relatively small basin scales.