Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers
During the 2017 summertime Arctic cruise observation campaigns, we measured over 290,000 individual submicron particles and clustered them into two inorganic classes (dominated by sea salt, accounting for 38.6% by number fraction) and five organic classes (dominated by natural and anthropogenic orga...
Published in: | Journal of Geophysical Research: Atmospheres |
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ftumanchesterpub:oai:pure.atira.dk:publications/63ff215e-1788-4959-b940-93ee0d1a1b1b 2024-09-30T14:28:01+00:00 Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers Su, Bojiang Zhang, Guohua Song, Congbo Liang, Yue Wang, Longqun Li, Lei Zhou, Zhen Yan, Jinpei Wang, Xinming Bi, Xinhui 2024-09-16 https://research.manchester.ac.uk/en/publications/63ff215e-1788-4959-b940-93ee0d1a1b1b https://doi.org/10.1029/2024JD041061 http://www.scopus.com/inward/record.url?scp=85203401451&partnerID=8YFLogxK eng eng https://research.manchester.ac.uk/en/publications/63ff215e-1788-4959-b940-93ee0d1a1b1b info:eu-repo/semantics/restrictedAccess Su , B , Zhang , G , Song , C , Liang , Y , Wang , L , Li , L , Zhou , Z , Yan , J , Wang , X & Bi , X 2024 , ' Submicron Organic Aerosol Types in the Summertime Arctic : Mixing State, Geographic Distribution, and Drivers ' , Journal of Geophysical Research: Atmospheres , vol. 129 , no. 17 , e2024JD041061 . https://doi.org/10.1029/2024JD041061 driver geographic distribution individual organic aerosol particles machine learning mixing state summertime high Arctic article 2024 ftumanchesterpub https://doi.org/10.1029/2024JD041061 2024-09-16T14:24:26Z During the 2017 summertime Arctic cruise observation campaigns, we measured over 290,000 individual submicron particles and clustered them into two inorganic classes (dominated by sea salt, accounting for 38.6% by number fraction) and five organic classes (dominated by natural and anthropogenic organics, 61.4%), presenting a distinct difference in geographic distribution. In the high Arctic and marginal ice zone (81.1–84.6°N) compared with the low Arctic (Chukchi Sea, Svalbard, and Iceland, <80°N), ocean-derived organic aerosols were more prevalent (73.6% vs. 37.1%). Specifically, we found sharp contrasts in the geographic distributions of OC-Ca (organics internally mixed with calcium, 29.0% vs. 9.4%) and OC-S (organics internally mixed with sulfate, 3.2% vs. 21.4%). Utilizing an explainable machine learning technique, we inferred that OC-Ca was driven by wind-blown sea ice and/or sea ice floes and/or bubble bursting within sea ice leads under low wind speed conditions in the high Arctic, while OC-S tended to associate with elemental carbon, sulfate, and higher temperatures, potentially originating from combustion emissions at low latitude regions. Article in Journal/Newspaper Arctic Arctic Chukchi Chukchi Sea Iceland Sea ice Svalbard The University of Manchester: Research Explorer Arctic Chukchi Sea Svalbard Journal of Geophysical Research: Atmospheres 129 17 |
institution |
Open Polar |
collection |
The University of Manchester: Research Explorer |
op_collection_id |
ftumanchesterpub |
language |
English |
topic |
driver geographic distribution individual organic aerosol particles machine learning mixing state summertime high Arctic |
spellingShingle |
driver geographic distribution individual organic aerosol particles machine learning mixing state summertime high Arctic Su, Bojiang Zhang, Guohua Song, Congbo Liang, Yue Wang, Longqun Li, Lei Zhou, Zhen Yan, Jinpei Wang, Xinming Bi, Xinhui Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers |
topic_facet |
driver geographic distribution individual organic aerosol particles machine learning mixing state summertime high Arctic |
description |
During the 2017 summertime Arctic cruise observation campaigns, we measured over 290,000 individual submicron particles and clustered them into two inorganic classes (dominated by sea salt, accounting for 38.6% by number fraction) and five organic classes (dominated by natural and anthropogenic organics, 61.4%), presenting a distinct difference in geographic distribution. In the high Arctic and marginal ice zone (81.1–84.6°N) compared with the low Arctic (Chukchi Sea, Svalbard, and Iceland, <80°N), ocean-derived organic aerosols were more prevalent (73.6% vs. 37.1%). Specifically, we found sharp contrasts in the geographic distributions of OC-Ca (organics internally mixed with calcium, 29.0% vs. 9.4%) and OC-S (organics internally mixed with sulfate, 3.2% vs. 21.4%). Utilizing an explainable machine learning technique, we inferred that OC-Ca was driven by wind-blown sea ice and/or sea ice floes and/or bubble bursting within sea ice leads under low wind speed conditions in the high Arctic, while OC-S tended to associate with elemental carbon, sulfate, and higher temperatures, potentially originating from combustion emissions at low latitude regions. |
format |
Article in Journal/Newspaper |
author |
Su, Bojiang Zhang, Guohua Song, Congbo Liang, Yue Wang, Longqun Li, Lei Zhou, Zhen Yan, Jinpei Wang, Xinming Bi, Xinhui |
author_facet |
Su, Bojiang Zhang, Guohua Song, Congbo Liang, Yue Wang, Longqun Li, Lei Zhou, Zhen Yan, Jinpei Wang, Xinming Bi, Xinhui |
author_sort |
Su, Bojiang |
title |
Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers |
title_short |
Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers |
title_full |
Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers |
title_fullStr |
Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers |
title_full_unstemmed |
Submicron Organic Aerosol Types in the Summertime Arctic:Mixing State, Geographic Distribution, and Drivers |
title_sort |
submicron organic aerosol types in the summertime arctic:mixing state, geographic distribution, and drivers |
publishDate |
2024 |
url |
https://research.manchester.ac.uk/en/publications/63ff215e-1788-4959-b940-93ee0d1a1b1b https://doi.org/10.1029/2024JD041061 http://www.scopus.com/inward/record.url?scp=85203401451&partnerID=8YFLogxK |
geographic |
Arctic Chukchi Sea Svalbard |
geographic_facet |
Arctic Chukchi Sea Svalbard |
genre |
Arctic Arctic Chukchi Chukchi Sea Iceland Sea ice Svalbard |
genre_facet |
Arctic Arctic Chukchi Chukchi Sea Iceland Sea ice Svalbard |
op_source |
Su , B , Zhang , G , Song , C , Liang , Y , Wang , L , Li , L , Zhou , Z , Yan , J , Wang , X & Bi , X 2024 , ' Submicron Organic Aerosol Types in the Summertime Arctic : Mixing State, Geographic Distribution, and Drivers ' , Journal of Geophysical Research: Atmospheres , vol. 129 , no. 17 , e2024JD041061 . https://doi.org/10.1029/2024JD041061 |
op_relation |
https://research.manchester.ac.uk/en/publications/63ff215e-1788-4959-b940-93ee0d1a1b1b |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2024JD041061 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
129 |
container_issue |
17 |
_version_ |
1811633901223804928 |