Community Research and Development Information Service - CORDIS


First benchmark for the uncertainty analysis based on the example of the French clay site - Results

Funded under: FP7-JRC


JRC-IE and ANDRA collaborate in the Framework of the Integrated Project PAMINA (Performance Assessment Methodologies in Application to Guide the Development of the Safety Case) to develop and apply advanced methods for performance assessment of a clay repository 1. The idea is to apply state-of-the-art techniques of different levels of complexity to assess the performance of a French clay repository and to assess the applicability of different methods. This is done by computing i) how uncertainties in input data affect output (the flow of radionuclides in specific parts of the repository system) and ii) to perform sensitivity analysis to rank the processes and input parameters with respect to their relevance for the output. The data used as input to the analyses are based on the large French research programme for a repository in a Cavollo-Oxfordian clay formation, which is the potential host-rock in France 2. The JRC and ANDRA perform analysis in parallel applying their own methods on two Benchmarks that have been jointly defined. The Benchmarks defines the geometry of the system and its constituents, the processes to be considered, the probabilistic density functions of the data and the coupling between parameters and the output to be computed. This report deals with the first Benchmark for which we have a simplified geometrical description and simplified description of the relevant processes 6. For the uncertainty analysis the main indicators that are computed include quantiles of the flow for a limited number of radionuclides in different parts of the system and complete probability density functions at specific times.

Additional information

Authors: PRVÁKOVÁ S, European Commission, Joint Research Centre, Institute for Energy, Petten (NL);BOLADO-LAVÍN R, European Commission, Joint Research Centre, Institute for Energy, Petten (NL);BADEA A, European Commission, Joint Research Centre, Institute for Energy, Petten (NL)
Bibliographic Reference: EUR 23228 EN (2008), 137 pp. Free of Charge
Availability: (Catalogue Number: LD-NA-23228-EN-C)
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