Cyclones enhance the transport of sea spray aerosols to the high atmosphere in the Southern Ocean
Abstract N d). In this study, a high-time-resolution (1 h) aerosol monitoring was carried out in the middle and high Southern Hemisphere from 23 February to 4 March 2018. The characteristics of SSAs during three cyclones were observed during the cruise. The results showed that SSA level in the low atmosphere did not increase with the wind speed during cyclone processes, which was different from the anticipated scenario that SSA concentration would increase with wind speed. However, the size of SSA particles during cyclones was larger than that in the no-cyclone periods. It seems that the generation of SSAs was enhanced during cyclones, but SSA concentration near the sea surface increased scarcely. The upward-transport proportion was calculated according to the wind stress and sea salt flux between cyclone and non-cyclone periods. It indicated that more than 23.4 % of the SSAs were transported upwards by cyclone processes during event 1, and 36.2 % and 38.9 % were transported upwards in event 2 and event 3, respectively. The upward transport of SSAs was the main reason why SSA concentration did not increase in the low atmosphere. The transport of SSAs to the high atmosphere during cyclones may additionally increase the CCN burden in the marine boundary layer, which may affect the regional climate. This study highlights the importance of SSA transport to the high atmosphere by cyclones and extends the knowledge of SSA generation and the impact factor during the cyclone period in marine atmosphere.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Cyclones enhance the transport of sea spray aerosols to the high atmosphere in the Southern Ocean ; volume:23 ; number:18 ; year:2023 ; pages:10349-10359 ; extent:11
Atmospheric chemistry and physics ; 23, Heft 18 (2023), 10349-10359 (gesamt 11)
- Creator
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Shi, Jun
Yan, Jinpei
Wang, Shanshan
Zhao, Shuhui
Zhang, Miming
Xu, Suqing
Lin, Qi
Yang, Hang
Dai, Siying
- DOI
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10.5194/acp-23-10349-2023
- URN
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urn:nbn:de:101:1-2023092104163226016513
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 11:03 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Shi, Jun
- Yan, Jinpei
- Wang, Shanshan
- Zhao, Shuhui
- Zhang, Miming
- Xu, Suqing
- Lin, Qi
- Yang, Hang
- Dai, Siying
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