Conceptual uncertainty assessment for a catchment scale model

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Abstract

Groundwater flow model of the Neogene aquifer system, representing an important water supply resource has been developed within the performance assessments studies of a geological disposal of radioactive waste in Belgium. In order evaluate the discrepancy between estimated parameter and a measured value of the Kasterlee Clay aquitard, uncertainty analyses were applied on three aspects of its conceptual model. These analyses included the parameterisation, geometry (thickness) of all units and the geometrical representation of the Kasterlee Clay. The results of the analyses showed that the conceptual model of the Kasterlee Clay should be reconsidered, allowing less resistance of the unit locally. To identify such places, further site investigation is recommended.

Details

Original languageEnglish
Title of host publicationCalibration and Reliability in Groundwater Modelling. Credibility of Modelling. ModelCare 2007
Place of PublicationWallington, United Kingdom
Pages331-336
Publication statusPublished - May 2008
EventModelCARE 2007. 6th International Conference on Calibration and Reliability in Groundwater Modelling. Credibility of Modelling - Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark
Duration: 9 Sep 200713 Sep 2007

Publication series

NameIAHS Publication
Number320

Conference

ConferenceModelCARE 2007. 6th International Conference on Calibration and Reliability in Groundwater Modelling. Credibility of Modelling
Country/TerritoryDenmark
CityCopenhagen
Period2007-09-092007-09-13

Keywords

  • groundwater flow, inverse modelling, conceptual model, uncertainty

ID: 250450