globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-16-0211.1
Scopus记录号: 2-s2.0-85000936653
论文题名:
Atmospheric conditions during the arctic clouds in summer experiment (ACSE): Contrasting open water and sea ice surfaces during melt and freeze-up seasons
作者: Sotiropoulou G.; Tjernström M.; Sedlar J.; Achtert P.; Brooks B.J.; Brooks I.M.; Perssond P.O.G.; Prytherch J.; Salisbury D.J.; Shuped M.D.; Johnstond P.E.; Wolfe D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期:24
起始页码: 8721
结束页码: 8744
语种: 英语
Scopus关键词: Atmospheric thermodynamics ; Boundary layers ; Clouds ; Fluxes ; Sea ice ; Stream flow ; Arctic ; Atmosphere-ocean interactions ; Atmospheric conditions ; Atmospheric process ; Ice-covered surface ; Inversions ; Surface heat loss ; Surface-based inversion ; Ice
英文摘要: 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 into 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 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 into 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. © 2016 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50101
Appears in Collections:气候变化事实与影响

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作者单位: Department of Meteorology, Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; National Centre for Atmospheric Science, University of Leeds, Leeds, United Kingdom; NOAA/Earth System Research Laboratory, Boulder, CO, United States; Cooperative Institute for Research in the Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States

Recommended Citation:
Sotiropoulou G.,Tjernström M.,Sedlar J.,et al. Atmospheric conditions during the arctic clouds in summer experiment (ACSE): Contrasting open water and sea ice surfaces during melt and freeze-up seasons[J]. Journal of Climate,2016-01-01,29(24)
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