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Monitoring and modelling of biosphere/atmosphere exchange of gases and aerosols in Europe

Erisman, Jan Willam; Vermeulen, Alex; Hensen, Arjan; Flechard, Chris; Dammgen, Ulrigh; Fowler, David; Sutton, Mark; Grunhage, Ludger; Tuovinen, Juha-Pekka. 2005 Monitoring and modelling of biosphere/atmosphere exchange of gases and aerosols in Europe. Environmental Pollution, 133 (3). 403-413. 10.1016/j.envpol.2004.07.004

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Abstract/Summary

Monitoring and modelling of deposition of air pollutants is essential to develop and evaluate policies to abate the effects related to air pollution and to determine the losses of pollutants from the atmosphere. Techniques for monitoring wet deposition fluxes are widely applied. A recent intercomparison experiment, however, showed that the uncertainty in wet deposition is relatively high, up to 40%, apart from the fact that most samplers are biased because of a dry deposition contribution. Wet deposition amounts to about 80% of the total deposition in Europe with a range of 10–90% and uncertainty should therefore be decreased. During recent years the monitoring of dry deposition has become possible. Three sites have been operational for 5 years. The data are useful for model development, but also for model evaluation and monitoring of progress in policy. Data show a decline in SO2 dry deposition, whereas nitrogen deposition remained constant. Furthermore, surface affinities for pollutants changed leading to changes in deposition. Deposition models have been further developed and tested with dry deposition measurements and total deposition measurements on forests as derived from throughfall data. The comparison is reasonable given the measurement uncertainties. Progress in ozone surface exchange modelling and monitoring shows that stomatal uptake can be quantified with reasonable accuracy, but external surface uptake yields highest uncertainty

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.envpol.2004.07.004
Programmes: CEH Programmes pre-2009 publications > Biogeochemistry > BG01 Measuring and modelling trace gas, aerosol and carbon
CEH Sections: _ Atmospheric Sciences
Billett
ISSN: 0269-7491
Additional Keywords: Atmosphere-biosphere exchange, Gases, Aerosols, Model, Measurements, Wet deposition, Dry deposition
NORA Subject Terms: Meteorology and Climatology
Ecology and Environment
Atmospheric Sciences
Chemistry
Date made live: 01 Aug 2008 14:26
URI: http://nora.nerc.ac.uk/id/eprint/3597

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