Community Research and Development Information Service - CORDIS


This volume is a comprehensive overview of the ETEX (European tracer Experiment ) project. It presents the set-up the execution and the conclusions of the project, built around a long range tracer experiment which took place in 1994 after almost five years of preparation.
ETEX consisted of three major activities: the tracer experiment, precede by extensive atmospheric background measurements
long range dispersion modelling in real-time
model evaluation.
sponsored by the European Commission, the World Meteorological Organization and the International Atomic Energy Agency, ETEX represented a large scale endeavour from many points of view. 12 countries were involved in the tracer experiment, with 168 sampling locations distributed over their territories. 24 Institutes from 20 countries participated in the real-time modelling exercize with 28 models. A suitable weather situation for an appropriate coverage of the sampling domain was determined from the meteorological forecast 2 days before the release. The air concentration data file set up after the tracer experiment allowed the evaluation of a total of 49 models in the post factum model evaluation study.
ETEX was successful since it has allowed:
an evaluation of the preparedness of the Institutes responsible for producing in real-time predictions of long range atmospheric dispersion;
an assessment of the validity of these predictions;
the assembly of a database to allow future evaluations of long range atmospheric dispersion models.

Additional information

Bibliographic Reference: EUR 18143 EN (1998) 108pp
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-5007-2
Record Number: 199910449 / Last updated on: 1999-03-19
Original language: en
Available languages: en