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Atmospheric conditi...
Atmospheric conditions during the Arctic Clouds in Summer Experiment (ACSE) : Contrasting open-water and sea-ice surfaces during melt and freeze-up seasons
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- Sotiropoulou, Georgia (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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- Tjernström, Michael (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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- Sedlar, Joseph (author)
- Stockholms universitet,Meteorologiska institutionen (MISU)
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Achtert, Peggy (author)
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Brooks, Barbara J. (author)
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Brooks, Ian M. (author)
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Persson, P. Ola G. (author)
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Prytherch, John (author)
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Salisbury, Dominic J. (author)
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Shupe, Matthew D. (author)
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Johnston, Paul E. (author)
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Wolfe, Dan (author)
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(creator_code:org_t)
- 2016
- 2016
- English.
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In: Journal of Climate. - 0894-8755 .- 1520-0442. ; 29:24, s. 8721-8744
- 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 Arctic Clouds in Summer Experiment (ACSE) was conducted during summer and early autumn 2014, providing a detailed view of the seasonal transition from ice melt into freeze-up. Measurements were taken over both ice-free and ice-covered surfaces, near the ice edge, offering insight to the role of the surface state in shaping the atmospheric conditions. The initiation of the autumn freeze-up was related to a change in air mass, rather than to changes in solar radiation alone; the lower atmosphere cooled abruptly leading to a surface heat loss. During melt season, strong surface inversions persisted over the ice, while elevated inversions were more frequent over open water. These differences disappeared during autumn freeze-up, when elevated inversions persisted over both ice-free and ice-covered conditions. These results are in contrast to previous studies that found a well-mixed boundary layer persisting in summer and an increased frequency of surface-based inversions in autumn, suggesting that our knowledge derived from measurements taken within the pan-Arctic area and on the central ice-pack does not necessarily apply closer to the ice-edge. This study offers an insight to the atmospheric processes that occur during a crucial period of the year; understanding and accurately modeling these processes is essential for the improvement of ice-extent predictions and future Arctic climate projections.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- Arctic
- Boundary layer
- Clouds
- Inversions
- Atmosphere-ocean interaction
- Fluxes
- atmosfärvetenskap och oceanografi
- Atmospheric Sciences and Oceanography
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Sotiropoulou, Ge ...
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Tjernström, Mich ...
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Sedlar, Joseph
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Achtert, Peggy
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Brooks, Barbara ...
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Brooks, Ian M.
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show more...
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Persson, P. Ola ...
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Prytherch, John
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Salisbury, Domin ...
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Shupe, Matthew D ...
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Johnston, Paul E ...
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Wolfe, Dan
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
- Articles in the publication
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Journal of Clima ...
- By the university
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Stockholm University