Articles | Volume 26, issue 14
https://doi.org/10.5194/acp-26-10331-2026
© 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-26-10331-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Jul 2026
Research article |
| 24 Jul 2026
| 24 Jul 2026
Contribution of free tropospheric aerosols to Arctic low-level cloud droplets formation and longwave radiative forcing
Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne, 1950 Sion, Switzerland
Heather Guy
School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
National Centre for Atmospheric Science, Leeds, LS2 9JT, UK
Ian Morley Brooks
School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK
Lea Haberstock
Department of Environmental Science, Stockholm University, 106 91 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden
Nicolas Fauré
Department of Chemistry and Molecular Biology, University of Gothenburg, 41390 Gothenburg, Sweden
Paul Zieger
Department of Environmental Science, Stockholm University, 106 91 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden
Julia Kojoj
Department of Environmental Science, Stockholm University, 106 91 Stockholm, Sweden
Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden
Sonja Murto
Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden
Department of Meteorology, Stockholm University, 106 91 Stockholm, Sweden
Department of Earth Sciences, Uppsala University, 75236 Uppsala, Sweden
Radiance Calmer
Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne, 1950 Sion, Switzerland
Benjamin Heutte
Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne, 1950 Sion, Switzerland
Michael Lonardi
Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne, 1950 Sion, Switzerland
Erik Schurch Thomson
Department of Chemistry and Molecular Biology, University of Gothenburg, 41390 Gothenburg, Sweden
Michael Tjernström
Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden
Department of Meteorology, Stockholm University, 106 91 Stockholm, Sweden
Jessie Creamean
Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA
Athanasios Nenes
Laboratory of Atmospheric Processes and their Impacts, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne, 1950 Sion, Switzerland
Viewed
Total article views: 2,435 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 27 Feb 2026)
| HTML | XML | Total | Supplement | BibTeX | EndNote | |
|---|---|---|---|---|---|---|
| 1,650 | 636 | 149 | 2,435 | 296 | 147 | 201 |
- HTML: 1,650
- PDF: 636
- XML: 149
- Total: 2,435
- Supplement: 296
- BibTeX: 147
- EndNote: 201
Total article views: 462 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 24 Jul 2026)
| HTML | XML | Total | Supplement | BibTeX | EndNote | |
|---|---|---|---|---|---|---|
| 334 | 79 | 49 | 462 | 49 | 41 | 40 |
- HTML: 334
- PDF: 79
- XML: 49
- Total: 462
- Supplement: 49
- BibTeX: 41
- EndNote: 40
Total article views: 1,973 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 27 Feb 2026)
| HTML | XML | Total | Supplement | BibTeX | EndNote | |
|---|---|---|---|---|---|---|
| 1,316 | 557 | 100 | 1,973 | 247 | 106 | 161 |
- HTML: 1,316
- PDF: 557
- XML: 100
- Total: 1,973
- Supplement: 247
- BibTeX: 106
- EndNote: 161
Viewed (geographical distribution)
Total article views: 2,435 (including HTML, PDF, and XML)
Thereof 2,370 with geography defined
and 65 with unknown origin.
Total article views: 462 (including HTML, PDF, and XML)
Thereof 375 with geography defined
and 87 with unknown origin.
Total article views: 1,973 (including HTML, PDF, and XML)
Thereof 1,973 with geography defined
and 0 with unknown origin.
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
Latest update: 15 Aug 2026
Short summary
This study presents tethered-balloon observations above Arctic sea ice showing that enhanced aerosol concentrations above low-level clouds are commonly observed. A closure analysis demonstrates that entrainment of these aerosols is required to reproduce observed cloud droplet numbers. Simulations indicate that neglecting this source can bias longwave radiative forcing, highlighting the need for vertical aerosol observations and improved model representation of aerosol entrainment at cloud top.
This study presents tethered-balloon observations above Arctic sea ice showing that enhanced...
Altmetrics
Final-revised paper
Preprint