How present aerosol pollution from North America impacts North Atlantic climate
This paper describes the potential effects of present-day aerosol pollution from North America (USA, Canada) on the climate of the North Atlantic region. The study has been performed by applying the comprehensive atmospheric general circulation model ECHAM5-HAM, which is coupled to a mixed-layer oce...
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fthzgzmk:oai:publications.hereon.de:30646 2023-06-11T04:09:33+02:00 How present aerosol pollution from North America impacts North Atlantic climate Fischer-Bruns, I. Feichter, J. Kloster, S. Schneidereit, A. 2010 https://publications.hereon.de/id/30646 https://publications.hzg.de/id/30646 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2010/fischer-bruns_30646.pdf en eng Blackwell Munksgaard http://dx.doi.org/10.1111/j.1600-0870.2010.00446.x urn:issn:0280-6495 https://publications.hereon.de/id/30646 https://publications.hzg.de/id/30646 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2010/fischer-bruns_30646.pdf info:eu-repo/semantics/openAccess open_access oa_gruen issn:0280-6495 Fischer-Bruns, I.; Feichter, J.; Kloster, S.; Schneidereit, A.: How present aerosol pollution from North America impacts North Atlantic climate. In: Tellus A. Vol. 62 (2010) 4, 15699. (DOI:10.1111/j.1600-0870.2010.00446.x) info:eu-repo/semantics/article Zeitschrift Artikel 2010 fthzgzmk https://doi.org/10.1111/j.1600-0870.2010.00446.x 2023-05-28T23:23:38Z This paper describes the potential effects of present-day aerosol pollution from North America (USA, Canada) on the climate of the North Atlantic region. The study has been performed by applying the comprehensive atmospheric general circulation model ECHAM5-HAM, which is coupled to a mixed-layer ocean with an embedded thermodynamic sea ice module. The model includes a microphysical aerosol model (HAM), which allows for the assessment of aerosol impacts on climate. Sulphate, black and organic carbon, sea salt and mineral dust are considered as aerosol species. Two equilibrium simulations with two different aerosol pollutant scenarios are compared for each season.We investigate the effect on radiation, temperature, hydrological quantities and dynamics, when human-induced aerosol emissions from North America were omitted. The decrease of both direct and indirect aerosol effects induces a positive change in top of the atmosphere (TOA) radiative fluxes resulting in an overall warming in the whole region. Our results demonstrate the vulnerability especially of the Arctic to the reduction in aerosol load. For fall we find an increase in precipitation over the North Atlantic, associated with a tendency to a larger number of cyclones with high-pressure gradients and a higher frequency in storm days. Article in Journal/Newspaper Arctic North Atlantic Sea ice Hereon Publications (Helmholtz-Zentrum) Arctic Canada Tellus A 62 4 579 589 |
institution |
Open Polar |
collection |
Hereon Publications (Helmholtz-Zentrum) |
op_collection_id |
fthzgzmk |
language |
English |
description |
This paper describes the potential effects of present-day aerosol pollution from North America (USA, Canada) on the climate of the North Atlantic region. The study has been performed by applying the comprehensive atmospheric general circulation model ECHAM5-HAM, which is coupled to a mixed-layer ocean with an embedded thermodynamic sea ice module. The model includes a microphysical aerosol model (HAM), which allows for the assessment of aerosol impacts on climate. Sulphate, black and organic carbon, sea salt and mineral dust are considered as aerosol species. Two equilibrium simulations with two different aerosol pollutant scenarios are compared for each season.We investigate the effect on radiation, temperature, hydrological quantities and dynamics, when human-induced aerosol emissions from North America were omitted. The decrease of both direct and indirect aerosol effects induces a positive change in top of the atmosphere (TOA) radiative fluxes resulting in an overall warming in the whole region. Our results demonstrate the vulnerability especially of the Arctic to the reduction in aerosol load. For fall we find an increase in precipitation over the North Atlantic, associated with a tendency to a larger number of cyclones with high-pressure gradients and a higher frequency in storm days. |
format |
Article in Journal/Newspaper |
author |
Fischer-Bruns, I. Feichter, J. Kloster, S. Schneidereit, A. |
spellingShingle |
Fischer-Bruns, I. Feichter, J. Kloster, S. Schneidereit, A. How present aerosol pollution from North America impacts North Atlantic climate |
author_facet |
Fischer-Bruns, I. Feichter, J. Kloster, S. Schneidereit, A. |
author_sort |
Fischer-Bruns, I. |
title |
How present aerosol pollution from North America impacts North Atlantic climate |
title_short |
How present aerosol pollution from North America impacts North Atlantic climate |
title_full |
How present aerosol pollution from North America impacts North Atlantic climate |
title_fullStr |
How present aerosol pollution from North America impacts North Atlantic climate |
title_full_unstemmed |
How present aerosol pollution from North America impacts North Atlantic climate |
title_sort |
how present aerosol pollution from north america impacts north atlantic climate |
publisher |
Blackwell Munksgaard |
publishDate |
2010 |
url |
https://publications.hereon.de/id/30646 https://publications.hzg.de/id/30646 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2010/fischer-bruns_30646.pdf |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic North Atlantic Sea ice |
genre_facet |
Arctic North Atlantic Sea ice |
op_source |
issn:0280-6495 Fischer-Bruns, I.; Feichter, J.; Kloster, S.; Schneidereit, A.: How present aerosol pollution from North America impacts North Atlantic climate. In: Tellus A. Vol. 62 (2010) 4, 15699. (DOI:10.1111/j.1600-0870.2010.00446.x) |
op_relation |
http://dx.doi.org/10.1111/j.1600-0870.2010.00446.x urn:issn:0280-6495 https://publications.hereon.de/id/30646 https://publications.hzg.de/id/30646 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2010/fischer-bruns_30646.pdf |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_gruen |
op_doi |
https://doi.org/10.1111/j.1600-0870.2010.00446.x |
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Tellus A |
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