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New Insights Into t...
New Insights Into the Composition and Origins of Ultrafine Aerosol in the Summertime High Arctic
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Lawler, M. J. (author)
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Saltzman, E. S. (author)
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- Karlsson, L. (author)
- Stockholm Univ, Dept Environm Sci, Stockholm, Sweden
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- Zieger, Paul (author)
- Stockholms universitet,Institutionen för miljövetenskap
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- Salter, Matthew E. (author)
- Stockholms universitet,Institutionen för miljövetenskap
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Baccarini, A. (author)
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Schmale, J. (author)
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- Leck, Caroline (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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(creator_code:org_t)
- 2021
- 2021
- English.
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In: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 48:21
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The summertime high Arctic atmosphere is characterized by extremely low aerosol abundance, such that small natural aerosol inputs have a strong influence on cloud formation and surface temperature. The physical sources and the mechanisms responsible for aerosol formation and development in this climate-critical and changing region are still uncertain. We report time-resolved measurements of high Arctic Aitken mode (∼20–60 nm diameter) aerosol composition during August–September 2018. During a significant Aitken mode formation event, the particles were composed of a combination of primary and secondary materials. These results highlight the importance of primary aerosol sources for high Arctic cloud formation, and they imply the action of a poorly understood atmospheric mechanism separating larger particles into multiple sub-particles.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- ultrafine aerosol
- Arctic
- marine boundary layer
- aerosol composition
- nanoparticle
- aerosol formation
Publication and Content Type
- ref (subject category)
- art (subject category)
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