Urban waterlogging risk assessment in Zhengzhou based on the coupling land surface hazard-pregnant features and underground pipe network operation characteristics
Study region: High-tech Zone, Zhengzhou City, Henan, China Province Study focus: Urban waterlogging has become a challenge with increasing urbanization. To enhance the accuracy of regional waterlogging risk assessment, this study proposes a new waterlogging risk assessment method based on the format...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
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| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581825002411 |
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| Summary: | Study region: High-tech Zone, Zhengzhou City, Henan, China Province Study focus: Urban waterlogging has become a challenge with increasing urbanization. To enhance the accuracy of regional waterlogging risk assessment, this study proposes a new waterlogging risk assessment method based on the formation mechanism of urban waterlogging process. The method can quantify the risk of land surface hazard-pregnant and underground pipe network operation under different rainstorm scenarios and determine the regional disaster tolerance capacity of urban rainstorm waterlogging. New hydrological insights for the region: Our results show that the southeast and northwest corners of the central dense urban area are most prone to waterlogging, which aligns with actual conditions. In a 1-year rainstorm in the study area, suburban and most densely populated urban areas remain risk-free. However, with the increase of rainfall return period, urban flooding occurs across the area, particularly affecting the central dense urban zone. |
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| ISSN: | 2214-5818 |