Community Research and Development Information Service - CORDIS


Data Assimilation for Off site Nuclear Emergency Management (DAONEM), Final Report

Project ID: FIKR-CT-2000-00025
Funded under: FP5-EAECTP C


There is an imperative need for developing a methodology that enables radiological advisors to use observations to update the predictions of models; hence reducing the uncertainty associated with model-based dose and consequence assessments, in the light of available monitoring data. Such a methodology is known as data assimilation. Application of data assimilation in a model spreads the information obtained from point measurements to the entire domain in a consistent manner, according to the model dynamics (interpolation in space). Furthermore, by updating the modelling system whenever measurements are available ensures that the model will not drift away from the measurements (interpolation in time).
In the 4th Framework Programme, a considerable amount of effort has been devoted to integrating a suite of computer codes, with different degrees of complexity, into a European real-time, on-line decision support system for off-site management of nuclear emergencies (the RODOS system). The modelling system describes the transport and dispersion of radionuclides in both atmospheric and aquatic systems, as well as their impact on the food chain.

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