Journal
HYDROLOGY AND EARTH SYSTEM SCIENCES
Volume 25, Issue 5, Pages 2843-2860Publisher
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/hess-25-2843-2021
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Funding
- Research Grants Council, University Grants Committee [27202419]
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Urban flood modeling tools are in demand to predict surface water inundation caused by intense rainfall in urban areas, providing important information for scientists, engineers, and decision-makers.
Urbanisation is an irreversible trend as a result of social and economic development. Urban areas, with high concentration of population, key infrastructure, and businesses, are extremely vulnerable to flooding and may suffer severe socio-economic losses due to climate change. Urban flood modelling tools are in demand to predict surface water inundation caused by intense rainfall and to manage associated flood risks in urban areas. These tools have been rapidly developing in recent decades. In this study, we present a comprehensive review of the advanced urban flood models and emerging approaches for predicting urban surface water flooding driven by intense rainfall. The study explores the advantages and limitations of existing model types, highlights the most recent advances, and identifies major challenges. Issues of model complexities, scale effects, and computational efficiency are also analysed. The results will inform scientists, engineers, and decision-makers of the latest developments and guide the model selection based on desired objectives.
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