Revision of deposition and weathering parameters for the ingestion dose module (ECOSYS) of the ARGOS and RODOS decision support systems

Kasper Grann Andersson, Sven Poul Nielsen, Håvard Thørring, Hanne S. Hansen, Hans Pauli Joensen, Mats Isaksson, Eila Kostiainen, Vesa Suolanen, Sigurdur Emil Pálsson

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The ECOSYS model is the ingestion dose model integrated in the ARGOS and RODOS decision support systems for nuclear emergency management. The parameters used in this model have however not been updated in recent years, where the level of knowledge on various environmental processes has increased considerably. A Nordic work group has carried out a series of evaluations of the general validity of current ECOSYS default parameters. This paper specifically discusses the parameter revisions required with respect to the modelling of deposition and natural weathering of contaminants on agricultural crops, to enable the trustworthy prognostic modelling that is essential to ensure justification and optimisation of countermeasure strategies. New modelling approaches are outlined, since it was found that current ECOSYS approaches for deposition and natural weathering could lead to large prognostic errors.
    Original languageEnglish
    JournalJournal of Environmental Radioactivity
    Volume102
    Issue number11
    Pages (from-to)1024-1031
    ISSN0265-931X
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Radio ecology and tracers

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