Ice-nucleating particles in Greenlandic glacial outwash plains

Bergner, Nora; Marsh, Grace; Barry, Kevin; Lacher, Larissa; Böhmländer, Alexander; Alden, Joanna; Ahlqvist, Carina; Altshuler, Ianina; Bröder, Lisa; Farinotti, Daniel; Favre, Lionel; Guillosson, Coline; Heutte, Benjamin; Höhler, Kristina; Pohorsky, Roman; Weng, Julian; Schmale, Julia

doi:10.5194/acp-26-10557-2026

Articles | Volume 26, issue 14

https://doi.org/10.5194/acp-26-10557-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-10557-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 14

Research article

|

28 Jul 2026

Research article |

| 28 Jul 2026

Ice-nucleating particles in Greenlandic glacial outwash plains

Nora Bergner, Grace Marsh, Kevin Barry, Larissa Lacher, Alexander Böhmländer, Joanna Alden, Carina Ahlqvist, Ianina Altshuler, Lisa Bröder, Daniel Farinotti, Lionel Favre, Coline Guillosson, Benjamin Heutte, Kristina Höhler, Roman Pohorsky, Julian Weng, and Julia Schmale

Supplement

https://doi.org/10.5194/acp-26-10557-2026-supplement

Data sets

Ice-nucleating activity of glacially sourced dust collected in glacial outwash plains in Narsarsuaq, Igaliku, and Kangerlussuaq, Greenland Nora Bergner et al. https://doi.org/10.5281/zenodo.18375165

Ice-nucleating particle concentrations from June-August 2023 in Narsaq and Narsarsuaq in southern Greenland Nora Bergner et al. https://doi.org/10.5281/zenodo.18376580

Meteorological data from multiple weather stations in Narsarsuaq and Narsaq, South Greenland during Greenfjord 2023 Joanna Alden et al. https://doi.org/10.5281/zenodo.15388080

Fidas measurements of total aerosol number concentration and number size distributions in summertime in Narsaq, South Greenland during Greenfjord 2023 Nora Bergner et al. https://doi.org/10.5281/zenodo.15387340

Portable Optical Particle Sizer (POPS) measurements of aerosol particle number concentration and size distribution in summertime in Narsarsuaq and Narsaq, South Greenland during Greenfjord 2023 Nora Bergner et al. https://doi.org/10.5281/zenodo.15388013

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Short summary

Dust from Greenlandic glacial outwash plains can form ice in clouds, a process relevant for climate. Its ice-nucleating activity varies strongly and is largely controlled by small amounts of biological material. During summer, the influence on atmospheric ice-nucleating particles is mostly local. Lower activity compared to other high-latitude dust sources highlights the need to account for regional differences in Arctic dust.