Articles | Volume 25, issue 6
https://doi.org/10.5194/acp-25-3327-2025
© 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-25-3327-2025
© 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 Mar 2025
Research article |
| 19 Mar 2025
| 19 Mar 2025
Terrestrial runoff is an important source of biological ice-nucleating particles in Arctic marine systems
Corina Wieber
Department of Biology, Microbiology, Aarhus University, Aarhus, 8000, Denmark
iCLIMATE Aarhus University Interdisciplinary Centre for Climate Change, Roskilde, 4000, Denmark
Lasse Z. Jensen
Department of Biology, Microbiology, Aarhus University, Aarhus, 8000, Denmark
iCLIMATE Aarhus University Interdisciplinary Centre for Climate Change, Roskilde, 4000, Denmark
Arctic Research Centre, Aarhus University, Aarhus, 8000, Denmark
Leendert Vergeynst
iCLIMATE Aarhus University Interdisciplinary Centre for Climate Change, Roskilde, 4000, Denmark
Department of Biological and Chemical Engineering – Environmental Engineering, Aarhus University, Aarhus, Denmark
WATEC Centre for Water Technology, Aarhus University, Aarhus, 8200, Denmark
Lorenz Meire
Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, 3900, Greenland
Department of Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research, Yerseke, 4401, the Netherlands
Thomas Juul-Pedersen
Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, 3900, Greenland
Kai Finster
Department of Biology, Microbiology, Aarhus University, Aarhus, 8000, Denmark
iCLIMATE Aarhus University Interdisciplinary Centre for Climate Change, Roskilde, 4000, Denmark
Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Aarhus, 8000, Denmark
Department of Biology, Microbiology, Aarhus University, Aarhus, 8000, Denmark
iCLIMATE Aarhus University Interdisciplinary Centre for Climate Change, Roskilde, 4000, Denmark
Arctic Research Centre, Aarhus University, Aarhus, 8000, Denmark
Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Aarhus, 8000, Denmark
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Short summary
The Arctic region is subject to profound changes due to a warming climate. Ice-nucleating particles (INPs) in the seawater can get transported to the atmosphere and impact cloud formation. However, the sources of characteristics of INPs in the marine areas are poorly understood. We investigated the INPs in seawater from Greenlandic fjords and identified a seasonal variability, with highly active INPs originating from terrestrial sources such as glacial and soil runoff.
The Arctic region is subject to profound changes due to a warming climate. Ice-nucleating...
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