Sensitivity Analysis of an Integrated Urban Flood Model

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review


In this paper, the model parameter sensitivity of an integrated urban flood model, including groundwater system, overland flow, sewer network, and river network, is investigated. The sensitivity analysis quantifies how influential the individual and correlated model parameters are to the simulated flood depth and area for an urban catchment in Aalborg, Denmark. The key parametric contributors to output sensitivity are analyzed by: (i) identify the most sensitive model parameters using a Morris screening; (ii) using the generalized Sobol’ method to investigate the sensitivity of the individual input parameters and the interaction between each parameter. The results indicate that the groundwater system, overland flow, and river network contribute most to the flood depth and as such, they need to be considered in urban flood modelling.

Original languageEnglish
Title of host publicationNew Trends in Urban Drainage Modelling - UDM 2018 : UMD 2018
EditorsGiorgio Mannina
Number of pages6
Place of PublicationCham
Publication date2019
ChapterPart VII: Modelling Interactions and Integrated Systems
ISBN (Print)978-3-319-99866-4
ISBN (Electronic)978-3-319-99867-1
Publication statusPublished - 2019
EventInternational Conference on Urban Drainage Modelling - Palermo, Italy
Duration: 23 Sep 201826 Sep 2018
Conference number: 11


ConferenceInternational Conference on Urban Drainage Modelling
SeriesGreen Energy and Technology


  • Integrated hydrological modelling
  • Global sensitivity analysis
  • Urban flooding


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