A COMPUTER-SYSTEM FOR SIMULATING THE TRANSFER OF POLLUTANTS OVER COMPLEX TERRAIN - SOME RECENT APPLICATIONS

The EURIDICE code system. jointly developed by the CEA-France and DEMO KRITOS-Greece. is an ensembie of codes designed to perform wind field calculations and atmospheric dispersion analysis at meso and/or local scale level, over terrain of great complexity and under realistic mete orological conditions. The implemented concept of partially active (i. e. containing air/ground contact surfaces) user-defined computational cells with high terrain resolution permits the performance of efficien t and reliable boundary layer analysis using reasonable computation re sources. Eulerian, puff, and Monte Carlo dispersion models are incorpo rated into the system. Some of the recent applications of the EURIDICE code system are presented here, including simulations of the ASCOT Ro cky Flats experiments and dispersion in the Greater Athens area.