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Lookup NU author(s): Dr Chris IliadisORCiD, Dr Vassilis Glenis, Emeritus Professor Chris Kilsby
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Flood risk in cities and built-up areas is a major threat which is likely to grow due to increased urbanisation and climate change. It is a priority for urban planning, civil defence and insurance to accurately represent buildings and urban features in hydrodynamic models to assess flood risk to people, properties, assets and infrastructure in an uncertain future. The correct representation of urban features in models is currently blocked by the lack of detailed and accurate techniques and has become a priority for the improvement of urban flood modelling now that better data and computational resources are available. This study has reviewed the available approaches for the representation of buildings and urban features and implemented the widely used ‘stubby building’ approximation as well as a more realistic and innovative ‘building hole’ approach using the hydrodynamic model CityCAT. The city centre of Newcastle upon Tyne, UK, was used as a case study, allowing independent validation of the methods and direct, systematic comparison of performance. Shortcomings of the approximate method are described, and guidance given on limits to its reliable application and scope for improvement.
Author(s): Iliadis C, Glenis V, Kilsby C
Publication type: Article
Publication status: Published
Journal: Journal of Flood Risk Management
Year: 2024
Volume: 17
Issue: 1
Print publication date: 01/03/2024
Online publication date: 19/09/2023
Acceptance date: 01/09/2023
Date deposited: 07/01/2025
ISSN (electronic): 1753-318X
Publisher: Wiley-Blackwell Publishing Ltd.
URL: https://doi.org/10.1111/jfr3.12950
DOI: 10.1111/jfr3.12950
Data Access Statement: The datasets generated and/or analyzed during the cur- rent study are available from the corresponding author on reasonable request.
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