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Abstract

Since the accident at the nuclear plant in Chernobyl, many countries in Western Europe have improved their monitoring capabilities for environmental radioactivity. Nearly all have installed on-line networks for airborne radioactivity based on external gamma dose rate meters, automatic aerosol monitors or both. Furthermore, the European Community and the International Atomic Energy Agency have made arrangements for the early exchange of radiological and other information between their respective Member States in the event of a nuclear accident. It is therefore expected that regional radiological data, in particular data on airborne radioactivity, will be available within the early phase of an accidental release. The integration of regional monitoring results with on-line atmospheric transport calculations on the European scale requires the following: (i) a European monitoring network which provides data on airborne radioactivity in quasi real-time, with a proper time and spatial resolution; (ii) a rapid transfer of the data to computing centres which also have access to forecast meteorological data; (iii) a long range transport model and a numerical procedure to update model predictions, using the monitoring data as they become available. These aspects are investigated and discussed in this paper.

Additional information

Authors: RAES F, JRC Ispra (IT);DE CORT M, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Training Course on Off-Site Emergency Planning and Response for Nuclear Accidents, Mol (BE), Sept. 9-13, 1991
Availability: Available from (1) as Paper EN 36574 ORA
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