The summer aerosol in the central Arctic 1991–2008: did it change or not?
In the course of global warming dramatic changes are taking place in the Arctic and boreal environments. However, physical aerosol data in from the central summer Arctic taken over the course of 18 yr from 1991 to 2008 do not show systematic year-to-year changes, albeit substantial interannual varia...
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ftdoajarticles:oai:doaj.org/article:35ebd16d29b04354a85e2441cd9defc3 2023-05-15T14:35:07+02:00 The summer aerosol in the central Arctic 1991–2008: did it change or not? J. Heintzenberg C. Leck 2012-05-01T00:00:00Z https://doi.org/10.5194/acp-12-3969-2012 https://doaj.org/article/35ebd16d29b04354a85e2441cd9defc3 EN eng Copernicus Publications http://www.atmos-chem-phys.net/12/3969/2012/acp-12-3969-2012.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-12-3969-2012 1680-7316 1680-7324 https://doaj.org/article/35ebd16d29b04354a85e2441cd9defc3 Atmospheric Chemistry and Physics, Vol 12, Iss 9, Pp 3969-3983 (2012) Physics QC1-999 Chemistry QD1-999 article 2012 ftdoajarticles https://doi.org/10.5194/acp-12-3969-2012 2022-12-31T14:54:54Z In the course of global warming dramatic changes are taking place in the Arctic and boreal environments. However, physical aerosol data in from the central summer Arctic taken over the course of 18 yr from 1991 to 2008 do not show systematic year-to-year changes, albeit substantial interannual variations. Besides the limited extent of the data several causes may be responsible for these findings. The processes controlling concentrations and particle size distribution of the aerosol over the central Arctic perennial pack ice area, north of 80°, may not have changed substantially during this time. Environmental changes are still mainly effective in the marginal ice zone, the ice-free waters and continental rims and have not propagated significantly into the central Arctic yet where they could affect the local aerosol and its sources. The analysis of meteorological conditions of the four expedition summers reveal substantial variations which we see as main causes of the measured variations in aerosol parameters. With combined lognormal fits of the hourly number size distributions of the four expeditions representative mode parameters for the summer aerosol in the central Arctic have been calculated. The combined aerosol statistics discussed in the present paper provide comprehensive physical data on the summer aerosol in the central Arctic. These data are the only surface aerosol information from this region. Article in Journal/Newspaper Arctic Global warming Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric Chemistry and Physics 12 9 3969 3983 |
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 J. Heintzenberg C. Leck The summer aerosol in the central Arctic 1991–2008: did it change or not? |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
In the course of global warming dramatic changes are taking place in the Arctic and boreal environments. However, physical aerosol data in from the central summer Arctic taken over the course of 18 yr from 1991 to 2008 do not show systematic year-to-year changes, albeit substantial interannual variations. Besides the limited extent of the data several causes may be responsible for these findings. The processes controlling concentrations and particle size distribution of the aerosol over the central Arctic perennial pack ice area, north of 80°, may not have changed substantially during this time. Environmental changes are still mainly effective in the marginal ice zone, the ice-free waters and continental rims and have not propagated significantly into the central Arctic yet where they could affect the local aerosol and its sources. The analysis of meteorological conditions of the four expedition summers reveal substantial variations which we see as main causes of the measured variations in aerosol parameters. With combined lognormal fits of the hourly number size distributions of the four expeditions representative mode parameters for the summer aerosol in the central Arctic have been calculated. The combined aerosol statistics discussed in the present paper provide comprehensive physical data on the summer aerosol in the central Arctic. These data are the only surface aerosol information from this region. |
format |
Article in Journal/Newspaper |
author |
J. Heintzenberg C. Leck |
author_facet |
J. Heintzenberg C. Leck |
author_sort |
J. Heintzenberg |
title |
The summer aerosol in the central Arctic 1991–2008: did it change or not? |
title_short |
The summer aerosol in the central Arctic 1991–2008: did it change or not? |
title_full |
The summer aerosol in the central Arctic 1991–2008: did it change or not? |
title_fullStr |
The summer aerosol in the central Arctic 1991–2008: did it change or not? |
title_full_unstemmed |
The summer aerosol in the central Arctic 1991–2008: did it change or not? |
title_sort |
summer aerosol in the central arctic 1991–2008: did it change or not? |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/acp-12-3969-2012 https://doaj.org/article/35ebd16d29b04354a85e2441cd9defc3 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Global warming |
genre_facet |
Arctic Global warming |
op_source |
Atmospheric Chemistry and Physics, Vol 12, Iss 9, Pp 3969-3983 (2012) |
op_relation |
http://www.atmos-chem-phys.net/12/3969/2012/acp-12-3969-2012.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-12-3969-2012 1680-7316 1680-7324 https://doaj.org/article/35ebd16d29b04354a85e2441cd9defc3 |
op_doi |
https://doi.org/10.5194/acp-12-3969-2012 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
12 |
container_issue |
9 |
container_start_page |
3969 |
op_container_end_page |
3983 |
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1766308002854338560 |