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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:42 |
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Conference: Bucharest University Faculty of Physics 2003 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Simulation of the Atmospheric Dispersion at Local Scale in the Area of Cogema (la Hague) Using Perle System
Authors:
Irina Sandu, Christine Lac*
Affiliation:
Faculty of Physics, University of Bucharest,Bucharest, Romania, irsandu@yahoo.com
*Meteo-France, Toulouse, France, christine.lac@meteo.fr
E-mail
Keywords:
Abstract:
METEO-FRANCE is presently developing a new system named PERLE which permits real time evaluation of atmospheric dispersion at local scale. This system consists in a non-hydrostatic meteorological model at mezo-scale (Meso-NH) and a particular code for the dispersion of the chemically passive pollutants. As a result of several studies performed by DP/SERV/ENV at Meteo-France, two particular codes have been retained for the dispersion module of PERLE: DIFPAR (EDF) and SPRAY (Aria Technologies).
In this study, the dispersion at local scale of Kr85 in the area of the nuclear-wastes reprocessing plant COGEMA (La Hague) has been simulated with the two dispersion models, initialised with the meteorological fields provided by Meso-NH. The simulations concern the most complete sampling campaign of Kr85 performed in this area on 18th and 19th september 2001.
The evaluation the two models performances and of the PERLE system s results for this campaign has been done by using the CTA (Atmospherical Transfer Coefficient) measured values.
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