Articles | Volume 25, issue 4
https://doi.org/10.5194/acp-25-2207-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-2207-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 Feb 2025
Research article |
| 19 Feb 2025
| 19 Feb 2025
Observations of high-time-resolution and size-resolved aerosol chemical composition and microphysics in the central Arctic: implications for climate-relevant particle properties
Benjamin Heutte
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
Nora Bergner
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
Hélène Angot
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
now at: Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, IGE, Grenoble, France
Jakob B. Pernov
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
now at: School of Earth and Atmospheric Sciences, Queensland University of Technology, Brisbane, Australia
Lubna Dada
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
Jessica A. Mirrielees
Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
Ivo Beck
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
Andrea Baccarini
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
now at: Laboratory of Atmospheric Processes and their Impacts, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
Matthew Boyer
Institute for Atmospheric and Earth System Research, INAR/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Jessie M. Creamean
Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
Kaspar R. Daellenbach
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
Imad El Haddad
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
Markus M. Frey
Natural Environment Research Council, British Antarctic Survey, Cambridge, UK
Silvia Henning
Department of Atmospheric Microphysics, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Tiia Laurila
Institute for Atmospheric and Earth System Research, INAR/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Vaios Moschos
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
Tuukka Petäjä
Institute for Atmospheric and Earth System Research, INAR/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Kerri A. Pratt
Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI USA
Lauriane L. J. Quéléver
Institute for Atmospheric and Earth System Research, INAR/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Matthew D. Shupe
Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Boulder, CO, USA
Physical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA
Paul Zieger
Department of Environmental Science, Stockholm University, Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm, Sweden
Tuija Jokinen
Institute for Atmospheric and Earth System Research, INAR/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
Climate and Atmosphere Research Centre (CARE-C), the Cyprus Institute, Nicosia, Cyprus
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne (EPFL) Valais Wallis, Sion, Switzerland
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Short summary
Limited aerosol measurements in the central Arctic hinder our understanding of aerosol–climate interactions in the region. Our year-long observations of aerosol physicochemical properties during the MOSAiC expedition reveal strong seasonal variations in aerosol chemical composition, where the short-term variability is heavily affected by storms in the Arctic. Local wind-generated particles are shown to be an important source of cloud seeds, especially in autumn.
Limited aerosol measurements in the central Arctic hinder our understanding of aerosol–climate...
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