Influence of the North Atlantic Oscillation on air pollution transport
We examined the influence of the North Atlantic Oscillation (NAO) on the atmospheric dispersion of pollution by computing the emission, transport and removal of idealized insoluble gaseous and water-soluble aerosol tracers, tagged by the continent of origin. We simulated a period of 50 yr (1960–2010...
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Online Access: | https://doi.org/10.5194/acp-12-869-2012 https://www.atmos-chem-phys.net/12/869/2012/ |
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ftcopernicus:oai:publications.copernicus.org:acp12315 2023-05-15T15:05:17+02:00 Influence of the North Atlantic Oscillation on air pollution transport Christoudias, T. Pozzer, A. Lelieveld, J. 2018-01-15 info:eu-repo/semantics/application/pdf https://doi.org/10.5194/acp-12-869-2012 https://www.atmos-chem-phys.net/12/869/2012/ eng eng info:eu-repo/grantAgreement/EC/FP7/226144 doi:10.5194/acp-12-869-2012 https://www.atmos-chem-phys.net/12/869/2012/ info:eu-repo/semantics/openAccess eISSN: 1680-7324 info:eu-repo/semantics/Text 2018 ftcopernicus https://doi.org/10.5194/acp-12-869-2012 2019-12-24T09:56:27Z We examined the influence of the North Atlantic Oscillation (NAO) on the atmospheric dispersion of pollution by computing the emission, transport and removal of idealized insoluble gaseous and water-soluble aerosol tracers, tagged by the continent of origin. We simulated a period of 50 yr (1960–2010), using the ECHAM5/MESSy1 atmospheric chemistry (EMAC) general circulation model. The model accounts for anthropogenic, biogenic and biomass burning sources, removal of trace gases through OH oxidation, and precipitation, sedimentation and deposition of aerosols. The model is shown to reproduce the observed spatial features of the NAO, moisture transports and precipitation. During high NAO phase seasons the axis of maximum westerly North American trace gas transports extends relatively far to the north and east over Europe. The NAO phase is significantly correlated with North American insoluble gas and soluble aerosol tracer concentrations over the northwestern Atlantic Ocean and across northern Europe, and with European trace gases and aerosols over Africa and north of the Arctic circle. We find a strong anti-correlation between the phase of the NAO and European pollutant gas concentration over western and central Europe. Other/Unknown Material Arctic North Atlantic North Atlantic oscillation Copernicus Publications: E-Journals Arctic Atmospheric Chemistry and Physics 12 2 869 877 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
We examined the influence of the North Atlantic Oscillation (NAO) on the atmospheric dispersion of pollution by computing the emission, transport and removal of idealized insoluble gaseous and water-soluble aerosol tracers, tagged by the continent of origin. We simulated a period of 50 yr (1960–2010), using the ECHAM5/MESSy1 atmospheric chemistry (EMAC) general circulation model. The model accounts for anthropogenic, biogenic and biomass burning sources, removal of trace gases through OH oxidation, and precipitation, sedimentation and deposition of aerosols. The model is shown to reproduce the observed spatial features of the NAO, moisture transports and precipitation. During high NAO phase seasons the axis of maximum westerly North American trace gas transports extends relatively far to the north and east over Europe. The NAO phase is significantly correlated with North American insoluble gas and soluble aerosol tracer concentrations over the northwestern Atlantic Ocean and across northern Europe, and with European trace gases and aerosols over Africa and north of the Arctic circle. We find a strong anti-correlation between the phase of the NAO and European pollutant gas concentration over western and central Europe. |
format |
Other/Unknown Material |
author |
Christoudias, T. Pozzer, A. Lelieveld, J. |
spellingShingle |
Christoudias, T. Pozzer, A. Lelieveld, J. Influence of the North Atlantic Oscillation on air pollution transport |
author_facet |
Christoudias, T. Pozzer, A. Lelieveld, J. |
author_sort |
Christoudias, T. |
title |
Influence of the North Atlantic Oscillation on air pollution transport |
title_short |
Influence of the North Atlantic Oscillation on air pollution transport |
title_full |
Influence of the North Atlantic Oscillation on air pollution transport |
title_fullStr |
Influence of the North Atlantic Oscillation on air pollution transport |
title_full_unstemmed |
Influence of the North Atlantic Oscillation on air pollution transport |
title_sort |
influence of the north atlantic oscillation on air pollution transport |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-12-869-2012 https://www.atmos-chem-phys.net/12/869/2012/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
eISSN: 1680-7324 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/226144 doi:10.5194/acp-12-869-2012 https://www.atmos-chem-phys.net/12/869/2012/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-12-869-2012 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
12 |
container_issue |
2 |
container_start_page |
869 |
op_container_end_page |
877 |
_version_ |
1766337010377687040 |