Abstract
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 language | English |
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| Title of host publication | New Trends in Urban Drainage Modelling - UDM 2018 : UMD 2018 |
| Editors | Giorgio Mannina |
| Number of pages | 6 |
| Place of Publication | Cham |
| Publisher | Springer |
| Publication date | 2019 |
| Pages | 723-728 |
| Chapter | Part VII: Modelling Interactions and Integrated Systems |
| ISBN (Print) | 978-3-319-99866-4 |
| ISBN (Electronic) | 978-3-319-99867-1 |
| DOIs | |
| Publication status | Published - 2019 |
| Event | International Conference on Urban Drainage Modelling - Palermo, Italy Duration: 23 Sept 2018 → 26 Sept 2018 Conference number: 11 |
Conference
| Conference | International Conference on Urban Drainage Modelling |
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| Number | 11 |
| Country/Territory | Italy |
| City | Palermo |
| Period | 23/09/2018 → 26/09/2018 |
| Series | Green Energy and Technology |
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| ISSN | 1865-3529 |
Keywords
- Integrated hydrological modelling
- Global sensitivity analysis
- Urban flooding