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Ocean-atmosphereinteractions:Different organiccomponents acrossPacific and SouthernOceans Jiyi JangJiyeon ParkJongkwan Park2023 год

Ocean-atmosphere interactions: Different organic components across Pacific and Southern Oceans
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Аннотация: Sea spray aerosol (SSA) particles strongly influence clouds and climate but the potential impact of ocean microbiota on SSA fluxes is still a matter of active research. Here-by means of in situ ship-borne measurements-we explore simultaneously molecular-level chemical properties of organic matter (OM) in oceans, sea ice, and the ambient PM2.5 aerosols along a transect of 15,000 km from the western Pacific Ocean (36°13'N) to the Southern Ocean (75°15'S). By means of orbitrap mass spectrometry and optical characteristics, lignin-like material (24 ± 5 %) and humic material (57 ± 8 %) were found to dominate the pelagic Pacific Ocean surface, while intermediate conditions were observed in the Pacific-Southern Ocean waters. In the marine atmosphere, we found a gradient of features in the aerosol: lignin-like material (31 ± 9 %) dominating coastal areas and the pelagic Pacific Ocean, whereas lipid-like (23 ± 16 %) and protein-like (11 ± 10 %) OM controlled the sympagic Southern Ocean (sea ice-influence). The results of this study showed that the OM composition in the ocean, which changes with latitude, affects the OM in aerosol compositions in the atmosphere. This study highlights the importance of the global-scale OM monitoring of the close interaction between the ocean, sea ice, and the atmosphere. Sympagic primary marine aerosols in polar regions must be treated differently from other pelagic-type oceans.
Год издания: 2023
Авторы: Jiyi Jang, Jiyeon Park, Jongkwan Park, Young Jun Yoon, Manuel Dall’Osto, Ki‐Tae Park, Eunho Jang, Ji Yi Lee, Kyung Hwa Cho, Bang Yong Lee
Издательство: Elsevier BV
Источник: The Science of The Total Environment
Ключевые слова: Atmospheric chemistry and aerosols, Atmospheric Ozone and Climate, Marine and coastal ecosystems
Другие ссылки: The Science of The Total Environment (HTML)
DIGITAL.CSIC (Spanish National Research Council (CSIC)) (PDF)
DIGITAL.CSIC (Spanish National Research Council (CSIC)) (HTML)
Scholarworks@UNIST (Ulsan National Institute of Science and Technology) (PDF)
Scholarworks@UNIST (Ulsan National Institute of Science and Technology) (HTML)
PubMed (HTML)