Framework for Dynamic Modelling of Urban Floods at Different Topographical Resolutions

Urban flood models are usually built on much coarser resolutions due to computational demand of models with high resolution topographic data. As a result surface flow models with a lower resolution more likely produce inaccurate flood simulation results than high resolution surface flow models. The research presented in this thesis deals with improving accuracies of coarse resolution flood models by extracting and incorporating useful information from high resolution topographic data into coarse grid models. The thesis also presents modelling of the complex nature of the interaction between surcharged sewer and flows associated with urban flooding and incorporation of infiltration process in surface flow modelling tools.