Polar primary aerosols across the ocean-sea ice-snow-atmosphere interface: From sources to impacts
Creamean, J.M.; Miller, L.A.; Van pinxteren, M.; crabeck, O.; Steiner, N.S.; Marelle, L.; Deschepper, I.; Lapere, R.; Leon-Marcos, A.; Pratt, K.A.; Thomas, J.L.; Da Silva, A.; Frey, M.M.; Peeken, I.; Horowitz, H.M.; Willis, M.D.; Price, R. (2026). Polar primary aerosols across the ocean-sea ice-snow-atmosphere interface: From sources to impacts. Elem. Sci. Anth. 14(1): 2500065. https://dx.doi.org/10.1525/elementa.2025.00065
In: Elementa Science of the Anthropocene. BioOne: Washington. ISSN 2325-1026; e-ISSN 2325-1026, more
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| Author keywords |
Primary aerosols;Aerosol-cloud;Ocean-sea ice-snow-atmosphere interface;Biogeochemistry;Arctic;Antarctic;cloud condensation nuclei;marine organic aerosols;transparent exopolymer particles;single-parameter representation;west antarctic peninsula;long-range transport;mixed-phase clouds;spray aerosol;nucleating particles;salt aerosol |
| Authors | | Top |
- Creamean, J.M.
- Miller, L.A.
- Van pinxteren, M.
- crabeck, O., more
- Steiner, N.S.
- Marelle, L.
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- Deschepper, I.
- Lapere, R.
- Leon-Marcos, A.
- Pratt, K.A.
- Thomas, J.L.
- Da Silva, A.
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- Frey, M.M.
- Peeken, I.
- Horowitz, H.M.
- Willis, M.D.
- Price, R.
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| Abstract |
Primary aerosols play a critical role in polar climate systems, influencing cloud formation, precipitation, radiative balance, and surface energy budgets. This paper provides a comprehensive synthesis of primary aerosol sources, transformation and removal processes, and broader atmospheric impacts in polar regions, emphasizing their links to ocean and sea ice biogeochemistry. These aerosols (including sea salt, primary organic aerosol, and primary biological aerosol particles) originate from marine and cryo spheric environments and are emitted through physical processes, such as wave breaking, bubble bursting, and blowing snow. Emission sources include seawater, sea ice, snow, and freshwater from river discharge and glacial runoff. Once airborne, these particles can serve as a chemical reservoir, influencing atmospheric composition and reactivity, and as seeds for cloud droplet and ice crystal formation, influencing cloud microphysics and polar climate. Despite their importance, many of the processes governing primary aerosol emissions and transformations remain poorly constrained. The most pressing knowledge gaps pertain to parameterization development, and the integration of interdisciplinary expertise. To improve our understanding of primary aerosol drivers and their response to climate, future research efforts should prioritize strategically coordinated and cross-disciplinary process studies, advancements in measurement technologies and coverage, and close collaboration between modelers and observational scientists to inform and refine model parameterizations. As polar regions continue to undergo profound changes marked by increased precipitation, reduced sea and land ice, freshening oceans, and shifting ecosystem dynamics, characterizing present-day primary aerosol populations is vital. Improved understanding will be essential for anticipating future changes in aerosol-radiation and aerosol-cloud interactions and their implications for polar and global climate systems. |
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