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The Response of Simulated Arctic Mixed-Phase Stratocumulus to Sea Ice Cover Variability in the Absence of Large-Scale Advection
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2017
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Source: Journal of Geophysical Research: Atmospheres, 122(22), 12,335-12,352
[PDF-2.57 MB]
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Journal Title:Journal of Geophysical Research: Atmospheres
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Description:This study examines the responses of Arctic mixed-phase stratocumulus boundary layer to sea ice cover variability near the sea ice margins using large eddy simulations. The simulations are conducted for two different atmospheric conditions, based on observations from the Surface Heat Budget of the Arctic Ocean Experiment (SHEBA) (100% sea ice-covered) and the Mixed-Phase Arctic Cloud Experiment (M-PACE)(open ocean). The effect of sea ice cover variability is investigated for both atmospheric conditions by conducting a series of simulations prescribed with varying amounts of sea ice cover and no large-scale advection. As sea ice cover amount decreases, the SHEBA boundary layer deepens and becomes decoupled.The relative strength of turbulence driven by surface heating to that driven by cloud top radiative cooling increases. Cloud ice and snow grow more ef ficiently than cloud liquid with moisture transported from
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Source:Journal of Geophysical Research: Atmospheres, 122(22), 12,335-12,352
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ISSN:2169-897X
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Rights Information:Other
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