Articles | Volume 18, issue 3
https://doi.org/10.5194/acp-18-1475-2018
https://doi.org/10.5194/acp-18-1475-2018
Research article
 | 
02 Feb 2018
Research article |  | 02 Feb 2018

Relating large-scale subsidence to convection development in Arctic mixed-phase marine stratocumulus

Gillian Young, Paul J. Connolly, Christopher Dearden, and Thomas W. Choularton

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Abel, S. J., Boutle, I. A., Waite, K., Fox, S., Brown, P. R., Cotton, R., Lloyd, G., Choularton, T. W., and Bower, K. N.: The Role of Precipitation in Controlling the Transition from Stratocumulus to Cumulus Clouds in a Northern Hemisphere Cold-Air Outbreak, J. Atmos. Sci., 74, 2293–2314, https://doi.org/10.1175/JAS-D-16-0362.1, 2017.
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Bryan, G. H. and Fritsch, J. M.: A Reevaluation of Ice-Liquid Water Potential Temperature, Mon. Weather Rev., 132, 2421–2431, https://doi.org/10.1175/1520-0493(2004)132<2421:AROIWP>2.0.CO;2, 2004.
Connolly, P. J., Vaughan, G., Cook, P., Allen, G., Coe, H., Choularton, T. W., Dearden, C., and Hill, A.: Modelling the effects of gravity waves on stratocumulus clouds observed during VOCALS-UK, Atmos. Chem. Phys., 13, 7133–7152, https://doi.org/10.5194/acp-13-7133-2013, 2013.
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Short summary
Large-scale subsidence, associated with high-pressure systems, is often used in cloud-resolving models to maintain the height of boundary layer clouds; however, its influence on the small-scale interactions in mixed-phase clouds has not been previously investigated. Using large-eddy simulations, we have identified a relationship between subsidence and convection development in such clouds, with implications for mixed-phase boundary layer clouds forming in the ocean-exposed Arctic regions.
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