Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 17
Articles | Volume 25, issue 17
https://doi.org/10.5194/acp-25-10315-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-10315-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 17
Research article
 | 
10 Sep 2025
Research article |  | 10 Sep 2025

Origin, size distribution, and hygroscopic properties of marine aerosols in the southwestern Indian Ocean: results of six campaigns of shipborne observations

Meredith Dournaux, Pierre Tulet, Joris Pianezze, Jérome Brioude, Jean-Marc Metzger, Melilotus Thyssen, and Gilles Athier

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Short summary
Aerosol measurements collected during six oceanographic campaigns carried out in 2021 and 2023 in the southwestern Indian Ocean are presented and analyzed in this paper. The results highlight large variability in the aerosol concentration, size, and water vapor affinity depending on in situ conditions and air mass transport over the ocean. Marine aerosol chemical composition is highly variable over this region and should be considered to better study the impacts of aerosols on regional weather and climate.
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