Title: Relative comparison of different types of uncertainties in sewer water quality modelling
Authors: Willems, Patrick # ×
Issue Date: Sep-2005
Publisher: Technical University of Denmark
Host Document: CD-ROM Proceedings 10th International conference on Urban Drainage pages:8 p.
Conference: 10th International conference on Urban Drainage location:Copenhagen, Denmark date:21-26 Aug 2005
Abstract: Quantifiable sources of uncertainty have been identified for a case-study of integrated modelling of a sewer system with a more downstream wastewater treatment plant and storage sedimentation tank. The different sources were classified in model input and model-structure related uncertainties. They were quantified and propagated towards the uncertainty in the event-based prediction of sewer emissions (flow, and physico-chemical water quality concentrations and loads). Based on variance decomposition, the total prediction uncertainty was splitted into the contributions of the various uncertainty sources and the different submodels. Although the results strongly depend on the water quality variable considered, it is in most general terms concluded that the uncertainty contribution by the water quality submodels is an order of magnitude higher than for the flow submodels. Future model improvement should therefore mainly focus on water quality data collection.
Description: paper print
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Hydraulics Section
× corresponding author
# (joint) last author

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