Articles | Volume 26, issue 21
https://doi.org/10.5194/acp-26-16047-2026
© Author(s) 2026. 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-26-16047-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 Nov 2026
Research article |
| 12 Nov 2026
| 12 Nov 2026
Frequent occurrence of newly formed aerosol particles over wide geographical areas in the Arctic free troposphere and atmospheric boundary layer
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Jonas Schaefer
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Jörg Hartmann
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Benjamin Kirbus
Leipzig Institute for Meteorology, Leipzig University, Leipzig, Germany
Joshua Müller
Leipzig Institute for Meteorology, Leipzig University, Leipzig, Germany
Markus Hartmann
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Bruno Wetzel
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Laura Köhler
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Anna-Marie Jörss
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Kay Weinhold
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Andreas Herber
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Zsófia Jurányi
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Silvia Henning
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Gregory C. Roberts
Scripps Institution of Oceanography, La Jolla, CA, USA
Manfred Wendisch
Leipzig Institute for Meteorology, Leipzig University, Leipzig, Germany
Mira L. Pöhlker
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Leipzig Institute for Meteorology, Leipzig University, Leipzig, Germany
Frank Stratmann
Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, Leipzig, Germany
Data sets
Master tracks in different resolutions during POLAR 6 campaign P6-247_BACSAM2_2024 Z. Jurányi et al. https://doi.org/10.1594/PANGAEA.971763
Five-day backwards trajectories at one minute resolution along the flight tracks of the Polar 6 research aircraft during BACSAM II B. Kirbus and M. Wendisch https://doi.org/10.1594/PANGAEA.971694
Airborne in-situ measurements of aerosol particle number size distributions during the BACSAM II campaign in April 2024 D. J. Simon et al. https://doi.org/10.1594/PANGAEA.993546
Short summary
We investigate the occurrence of newly formed, nanometer-sized aerosol particles in the Arctic atmosphere by analyzing size-resolved particle measurements conducted aboard a research aircraft in April 2024. Vertically-resolved studies on such small particles have remained scarce. We frequently detected newly formed particles at altitudes of up to 4 km. These particles were associated with air mass transport from southern latitudes, the occurrence of clouds, as well as the presence of sea ice.
We investigate the occurrence of newly formed, nanometer-sized aerosol particles in the Arctic...
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