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Urban Flood Modelling - Process or Regression?

Author(s): James E. Ball

Linked Author(s): James Ball

Keywords: Hydroinformatics, urban, flood, modelling

Abstract: Design flood estimation remains a problem for many professionals involved in the management of urban catchments. Advice is required regarding design flood characteristics for many design problems including the design of culverts and bridges necessary for cross drainage of transport routes, the design of the pipes and channels comprising urban drainage systems, the design of flood mitigation levees and other flood mitigation structures, design of retarding basin spillways, and many environmental flow problems. This advice is complicated further by the increasing the requirement to consider the impact of changing climatic states on design floods. The data desired for these design problems must be interpreted from a statistical viewpoint which is contrasts to the deterministic viewpoint necessary to assess catchment response to a historical event. When data is not available for the site or system of interest, a common approach with development of the desired data for these design problems is utilized from catchment modelling systems. The aim of these catchment modelling systems is to predict the data that would have been recorded if a stream gauge were present for the event arising when the boundary conditions are simulated. Presented herein is a discussion of the design of flood problem for urban catchments under both current and future climate states


Year: 2017

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