Comparative Analysis of Uncertainties in Urban Surface Runoff Modelling

Søren Thorndahl, Kjeld Schaarup-Jensen

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Abstract

In the present paper a comparison between three different surface runoff models, in the numerical urban drainage tool MOUSE, is conducted. Analysing parameter uncertainty, it is shown that the models are very sensitive with regards to the choice of hydrological parameters, when combined overflow volumes are compared - especially when the models are uncalibrated. The occurrences of flooding and surcharge are highly dependent on both hydrological and hydrodynamic parameters. Thus, the conclusion of the paper is that if the use of model simulations is to be a reliable tool for drainage system analysis, further research in improved parameter assessment for surface runoff models is needed.

Original languageEnglish
Title of host publicationNovatech2007 : 6th International Conference on Sustainable Techniques and Strategies in Urban Water Management, June 25-28 2007 - Lyon - France
Number of pages8
VolumeVol. 3
PublisherGRAIE
Publication date2007
Pages1631-1638
ISBN (Print)2950933793
Publication statusPublished - 2007
EventThe International Conference on Sustainable Techniques and Strategies in Urban Water Management - Lyon, France
Duration: 25 Jun 200728 Jun 2007
Conference number: 6

Conference

ConferenceThe International Conference on Sustainable Techniques and Strategies in Urban Water Management
Number6
Country/TerritoryFrance
CityLyon
Period25/06/200728/06/2007

Bibliographical note

Published in vol. 3

Keywords

  • Calibration
  • Sensitivity analysis
  • Surface runoff
  • Uncertainties
  • Urban drainage modelling
  • NOVATECH

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