|WORLD METEOROLOGICAL ORGANIZATION||
|Explanation of the criteria for classification and numbering of components||
|Explanation of the dates on the component's description|
REGIONAL ACID DEPOSITION MODEL
1. Purpose and objectives
To calculate air concentrations, dry and wet depositions of sulphur, oxidized and reduced nitrogen due to the long-range transport of air pollutants on a European scale.
EMEP Eulerian acid deposition model is used routinely by the Meteorological Synthesizing Centre West (MSC-W) in the framework of the
Cooperative Programme for the Monitoring and Evaluation of the long-range transmission of air pollutants in Europe (EMEP). Using emission data from
European countries (annual emissions from grid squares ca. 50km x with 50 km sides) and basic meteorological data normally available from a meteorological forecast model, dry and wet (precipitation water)
SO2, NO2 and NH3 emission data from individual grid squares, surface and 3-d meteorological data (e.g. wind fields and precipitation) and land use data.
Gridded distribution of air concentrations, and dry and wet
depositions due to the long-range transmission of air pollutants.
5. Operational requirements and restrictions
The model is not applicable to small-scale phenomena. Calculations
for longer periods of time (a month or more) are more realistic than those
for particular episodes.
6. Form of presentation
The current model version
is described e.g. in EMEP/MSC-W Reports
1/98, of the Norwegian Meteorological Institute, Oslo, Norway. The EMEP/MSC-W reports are updated
7. Operational experience
Model has been in routine use since 1999.
8. Originator and technical support
MSC-W of EMEP, The Norwegian Meteorological Institute, Oslo, Norway.
10. Conditions on use
The model, description and results are available in the form of the reports quoted above and the web site: www.emep.int
|(First entered: 20 FEB 86||
Last updated: 1 JUN 99)