| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:29 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2002 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Validation of atmospheric dispersion models by using the ETEX data
Authors:
Irina Sandu, Sabina Stefan
Affiliation:
University of Bucharest, Faculty of Physics, P.O.Box MG-11, Bucharest, Romania
E-mail
Keywords:
Abstract:
The aim of this paper is to intercompare two models frequently used to simulate the dispersion of pollutants in the atmosphere. This work is necessary because only a well tested and well-calibrated simulation model can be a good representation of the reality of pollutant’s dispersion. These models are : HYSPLIT_4 with its four variantes and MEDIA model. They were selected due to the conceptual differences between them, due to their complexity and because they were available for us.
Intercomparison was realized by using the statistical criteria : spatio-temporal evolution of pollutant cloud, variation of statistical parameters in time and space and analysis of differences between the simulated and measured values of concentration in time for six different stations.
The results emphasise the characteristics of the two models and thei possibilities to be applied in the studies of the monitorring of the quality of air.
|
|
|
|