A multi-model assessment of pollution transport to the Arctic
We examine the response of Arctic gas and aerosol concentrations to perturbations in pollutant emissions from Europe, East and South Asia, and North America using results from a coordinated model intercomparison. These sensitivities to regional emissions (mixing ratio change per unit emission) vary...
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ftdoajarticles:oai:doaj.org/article:6ade4fa46efc407e902ee5f17be50c4c 2023-05-15T14:43:22+02:00 A multi-model assessment of pollution transport to the Arctic K. J. Pringle R. Park E. Marmer J. W. Kaminski J. Jonson L. W. Horowitz G. Folberth B. N. Duncan C. Cuvelier H. Bian I. Bey D. J. Bergmann O. Wild C. Textor H. Teich D. S. Stevenson M. Schulz M. G. Schultz M. G. Sanderson I. A. MacKenzie P. Hess D. M. Koch A. M. Fiore G. Faluvegi R. M. Doherty F. Dentener M. Chin D. T. Shindell S. Schroeder S. Szopa T. Takemura G. Zeng T. J. Keating A. Zuber 2008-09-01T00:00:00Z https://doaj.org/article/6ade4fa46efc407e902ee5f17be50c4c EN eng Copernicus Publications http://www.atmos-chem-phys.net/8/5353/2008/acp-8-5353-2008.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/6ade4fa46efc407e902ee5f17be50c4c Atmospheric Chemistry and Physics, Vol 8, Iss 17, Pp 5353-5372 (2008) Physics QC1-999 Chemistry QD1-999 article 2008 ftdoajarticles 2022-12-31T11:51:58Z We examine the response of Arctic gas and aerosol concentrations to perturbations in pollutant emissions from Europe, East and South Asia, and North America using results from a coordinated model intercomparison. These sensitivities to regional emissions (mixing ratio change per unit emission) vary widely across models and species. Intermodel differences are systematic, however, so that the relative importance of different regions is robust. North America contributes the most to Arctic ozone pollution. For aerosols and CO, European emissions dominate at the Arctic surface but East Asian emissions become progressively more important with altitude, and are dominant in the upper troposphere. Sensitivities show strong seasonality: surface sensitivities typically maximize during boreal winter for European and during spring for East Asian and North American emissions. Mid-tropospheric sensitivities, however, nearly always maximize during spring or summer for all regions. Deposition of black carbon (BC) onto Greenland is most sensitive to North American emissions. North America and Europe each contribute ~40% of total BC deposition to Greenland, with ~20% from East Asia. Elsewhere in the Arctic, both sensitivity and total BC deposition are dominated by European emissions. Model diversity for aerosols is especially large, resulting primarily from differences in aerosol physical and chemical processing (including removal). Comparison of modeled aerosol concentrations with observations indicates problems in the models, and perhaps, interpretation of the measurements. For gas phase pollutants such as CO and O 3 , which are relatively well-simulated, the processes contributing most to uncertainties depend on the source region and altitude examined. Uncertainties in the Arctic surface CO response to emissions perturbations are dominated by emissions for East Asian sources, while uncertainties in transport, emissions, and oxidation are comparable for European and North American sources. At higher levels, model-to-model ... Article in Journal/Newspaper Arctic black carbon Greenland Directory of Open Access Journals: DOAJ Articles Arctic Greenland |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 K. J. Pringle R. Park E. Marmer J. W. Kaminski J. Jonson L. W. Horowitz G. Folberth B. N. Duncan C. Cuvelier H. Bian I. Bey D. J. Bergmann O. Wild C. Textor H. Teich D. S. Stevenson M. Schulz M. G. Schultz M. G. Sanderson I. A. MacKenzie P. Hess D. M. Koch A. M. Fiore G. Faluvegi R. M. Doherty F. Dentener M. Chin D. T. Shindell S. Schroeder S. Szopa T. Takemura G. Zeng T. J. Keating A. Zuber A multi-model assessment of pollution transport to the Arctic |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
We examine the response of Arctic gas and aerosol concentrations to perturbations in pollutant emissions from Europe, East and South Asia, and North America using results from a coordinated model intercomparison. These sensitivities to regional emissions (mixing ratio change per unit emission) vary widely across models and species. Intermodel differences are systematic, however, so that the relative importance of different regions is robust. North America contributes the most to Arctic ozone pollution. For aerosols and CO, European emissions dominate at the Arctic surface but East Asian emissions become progressively more important with altitude, and are dominant in the upper troposphere. Sensitivities show strong seasonality: surface sensitivities typically maximize during boreal winter for European and during spring for East Asian and North American emissions. Mid-tropospheric sensitivities, however, nearly always maximize during spring or summer for all regions. Deposition of black carbon (BC) onto Greenland is most sensitive to North American emissions. North America and Europe each contribute ~40% of total BC deposition to Greenland, with ~20% from East Asia. Elsewhere in the Arctic, both sensitivity and total BC deposition are dominated by European emissions. Model diversity for aerosols is especially large, resulting primarily from differences in aerosol physical and chemical processing (including removal). Comparison of modeled aerosol concentrations with observations indicates problems in the models, and perhaps, interpretation of the measurements. For gas phase pollutants such as CO and O 3 , which are relatively well-simulated, the processes contributing most to uncertainties depend on the source region and altitude examined. Uncertainties in the Arctic surface CO response to emissions perturbations are dominated by emissions for East Asian sources, while uncertainties in transport, emissions, and oxidation are comparable for European and North American sources. At higher levels, model-to-model ... |
format |
Article in Journal/Newspaper |
author |
K. J. Pringle R. Park E. Marmer J. W. Kaminski J. Jonson L. W. Horowitz G. Folberth B. N. Duncan C. Cuvelier H. Bian I. Bey D. J. Bergmann O. Wild C. Textor H. Teich D. S. Stevenson M. Schulz M. G. Schultz M. G. Sanderson I. A. MacKenzie P. Hess D. M. Koch A. M. Fiore G. Faluvegi R. M. Doherty F. Dentener M. Chin D. T. Shindell S. Schroeder S. Szopa T. Takemura G. Zeng T. J. Keating A. Zuber |
author_facet |
K. J. Pringle R. Park E. Marmer J. W. Kaminski J. Jonson L. W. Horowitz G. Folberth B. N. Duncan C. Cuvelier H. Bian I. Bey D. J. Bergmann O. Wild C. Textor H. Teich D. S. Stevenson M. Schulz M. G. Schultz M. G. Sanderson I. A. MacKenzie P. Hess D. M. Koch A. M. Fiore G. Faluvegi R. M. Doherty F. Dentener M. Chin D. T. Shindell S. Schroeder S. Szopa T. Takemura G. Zeng T. J. Keating A. Zuber |
author_sort |
K. J. Pringle |
title |
A multi-model assessment of pollution transport to the Arctic |
title_short |
A multi-model assessment of pollution transport to the Arctic |
title_full |
A multi-model assessment of pollution transport to the Arctic |
title_fullStr |
A multi-model assessment of pollution transport to the Arctic |
title_full_unstemmed |
A multi-model assessment of pollution transport to the Arctic |
title_sort |
multi-model assessment of pollution transport to the arctic |
publisher |
Copernicus Publications |
publishDate |
2008 |
url |
https://doaj.org/article/6ade4fa46efc407e902ee5f17be50c4c |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic black carbon Greenland |
genre_facet |
Arctic black carbon Greenland |
op_source |
Atmospheric Chemistry and Physics, Vol 8, Iss 17, Pp 5353-5372 (2008) |
op_relation |
http://www.atmos-chem-phys.net/8/5353/2008/acp-8-5353-2008.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/6ade4fa46efc407e902ee5f17be50c4c |
_version_ |
1766315025353408512 |