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Evaluate waterlogging hazards in Nanning's Chaoyang River Basin using a coupled modeling approach.

Coupling Waterlogging Hazard Assessment Based on SWMM – LISFLOOD Simulation in Chaoyang River Basin of Nanning, China

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Evaluate waterlogging hazards in Nanning's Chaoyang River Basin using a coupled modeling approach.
Utilized a SWMM-LISFLOOD coupled model for simulations of 11 storm scenarios (0.25-100 year return periods).
Employed multicriteria decision analysis integrating six hazard indicators using an optimized weighting method.
Achieved waterlogging hazard zoning mapping at 12.5 m spatial resolution.
Waterlogging simulation outcomes align with actual conditions indicating effective modeling.
Inundation depth exhibited the highest risk contribution (weight: 0.405).
Hazard patterns show transition from Low/Negligible Risk for 0.25-2 year storms to Moderate/High Risk for 20-100 year storms.

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Randomized trial evaluates stormwater waterlogging risks in Nanning, indicating spatial variations in hazard levels.

Yang et al. (2026) studied this question.

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