Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer
Unique measurements of vertical size-resolved aerosol particle concentrations, trace gas concentrations and meteorological data were obtained during the Arctic Summer Cloud Ocean Study (ASCOS, www.ascos.se), an International Polar Year project aimed at establishing the processes responsible for form...
Published in: | Atmospheric Chemistry and Physics |
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Language: | English |
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Atmosfärisk fjärranalys
2013
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-394 https://doi.org/10.5194/acp-13-12405-2013 |
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ftsmhi:oai:DiVA.org:smhi-394 2023-05-15T14:50:13+02:00 Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer Kupiszewski, P. Leck, C. Tjernstrom, M. Sjogren, S. Sedlar, Joseph Graus, M. Mueller, M. Brooks, B. Swietlicki, E. Norris, S. Hansel, A. 2013 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-394 https://doi.org/10.5194/acp-13-12405-2013 eng eng Atmosfärisk fjärranalys Atmospheric Chemistry And Physics, 1680-7316, 2013, 13:24, s. 12405-12431 http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-394 doi:10.5194/acp-13-12405-2013 ISI:000329930000013 info:eu-repo/semantics/openAccess Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Article in journal info:eu-repo/semantics/article text 2013 ftsmhi https://doi.org/10.5194/acp-13-12405-2013 2022-12-09T10:06:12Z Unique measurements of vertical size-resolved aerosol particle concentrations, trace gas concentrations and meteorological data were obtained during the Arctic Summer Cloud Ocean Study (ASCOS, www.ascos.se), an International Polar Year project aimed at establishing the processes responsible for formation and evolution of low-level clouds over the high Arctic summer pack ice. The experiment was conducted from on board the Swedish icebreaker Oden, and provided both ship-and helicopter-based measurements. This study focuses on the vertical helicopter profiles and onboard measurements obtained during a three-week period when Oden was anchored to a drifting ice floe, and sheds light on the characteristics of Arctic aerosol particles and their distribution throughout the lower atmosphere. Distinct differences in aerosol particle characteristics within defined atmospheric layers are identified. Within the lowermost couple hundred metres, transport from the marginal ice zone (MIZ), condensational growth and cloud processing develop the aerosol population. During two of the four representative periods defined in this study, such influence is shown. At altitudes above about 1 km, long-range transport occurs frequently. However, only infrequently does large-scale subsidence descend such air masses to become entrained into the mixed layer in the high Arctic, and there-fore long-range transport plumes are unlikely to directly influence low-level stratiform cloud formation. Nonetheless, such plumes can influence the radiative balance of the planetary boundary layer (PBL) by influencing formation and evolution of higher clouds, as well as through precipitation transport of particles downwards. New particle formation was occasionally observed, particularly in the near-surface layer. We hypothesize that the origin of these ultrafine particles could be in biological processes, both primary and secondary, within the open leads between the pack ice and/or along the MIZ. In general, local sources, in combination with upstream ... Article in Journal/Newspaper Arctic Arctic Ocean Icebreaker International Polar Year oden SMHI (Swedish Meteorological and Hydrological Institute): Vetenskapliga Publikationer (DiVA) Arctic Arctic Ocean Atmospheric Chemistry and Physics 13 24 12405 12431 |
institution |
Open Polar |
collection |
SMHI (Swedish Meteorological and Hydrological Institute): Vetenskapliga Publikationer (DiVA) |
op_collection_id |
ftsmhi |
language |
English |
topic |
Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
spellingShingle |
Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Kupiszewski, P. Leck, C. Tjernstrom, M. Sjogren, S. Sedlar, Joseph Graus, M. Mueller, M. Brooks, B. Swietlicki, E. Norris, S. Hansel, A. Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer |
topic_facet |
Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
description |
Unique measurements of vertical size-resolved aerosol particle concentrations, trace gas concentrations and meteorological data were obtained during the Arctic Summer Cloud Ocean Study (ASCOS, www.ascos.se), an International Polar Year project aimed at establishing the processes responsible for formation and evolution of low-level clouds over the high Arctic summer pack ice. The experiment was conducted from on board the Swedish icebreaker Oden, and provided both ship-and helicopter-based measurements. This study focuses on the vertical helicopter profiles and onboard measurements obtained during a three-week period when Oden was anchored to a drifting ice floe, and sheds light on the characteristics of Arctic aerosol particles and their distribution throughout the lower atmosphere. Distinct differences in aerosol particle characteristics within defined atmospheric layers are identified. Within the lowermost couple hundred metres, transport from the marginal ice zone (MIZ), condensational growth and cloud processing develop the aerosol population. During two of the four representative periods defined in this study, such influence is shown. At altitudes above about 1 km, long-range transport occurs frequently. However, only infrequently does large-scale subsidence descend such air masses to become entrained into the mixed layer in the high Arctic, and there-fore long-range transport plumes are unlikely to directly influence low-level stratiform cloud formation. Nonetheless, such plumes can influence the radiative balance of the planetary boundary layer (PBL) by influencing formation and evolution of higher clouds, as well as through precipitation transport of particles downwards. New particle formation was occasionally observed, particularly in the near-surface layer. We hypothesize that the origin of these ultrafine particles could be in biological processes, both primary and secondary, within the open leads between the pack ice and/or along the MIZ. In general, local sources, in combination with upstream ... |
format |
Article in Journal/Newspaper |
author |
Kupiszewski, P. Leck, C. Tjernstrom, M. Sjogren, S. Sedlar, Joseph Graus, M. Mueller, M. Brooks, B. Swietlicki, E. Norris, S. Hansel, A. |
author_facet |
Kupiszewski, P. Leck, C. Tjernstrom, M. Sjogren, S. Sedlar, Joseph Graus, M. Mueller, M. Brooks, B. Swietlicki, E. Norris, S. Hansel, A. |
author_sort |
Kupiszewski, P. |
title |
Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer |
title_short |
Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer |
title_full |
Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer |
title_fullStr |
Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer |
title_full_unstemmed |
Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer |
title_sort |
vertical profiling of aerosol particles and trace gases over the central arctic ocean during summer |
publisher |
Atmosfärisk fjärranalys |
publishDate |
2013 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-394 https://doi.org/10.5194/acp-13-12405-2013 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Icebreaker International Polar Year oden |
genre_facet |
Arctic Arctic Ocean Icebreaker International Polar Year oden |
op_relation |
Atmospheric Chemistry And Physics, 1680-7316, 2013, 13:24, s. 12405-12431 http://urn.kb.se/resolve?urn=urn:nbn:se:smhi:diva-394 doi:10.5194/acp-13-12405-2013 ISI:000329930000013 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-13-12405-2013 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
13 |
container_issue |
24 |
container_start_page |
12405 |
op_container_end_page |
12431 |
_version_ |
1766321258666917888 |