Articles | Volume 14, issue 22
Research article
28 Nov 2014
Research article |  | 28 Nov 2014

The thermodynamic structure of summer Arctic stratocumulus and the dynamic coupling to the surface

G. Sotiropoulou, J. Sedlar, M. Tjernström, M. D. Shupe, I. M. Brooks, and P. O. G. Persson

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Revised manuscript accepted for ACP
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Cited articles

ACIA: Impacts of a warming Arctic: Arctic Climate Impact Assessment, Cambridge University Press, 2005.
Andreas, E. L., Claffey, K. J., and Makshtas, A. P.: Low-level atmospheric jets and inversions over the western Weddell Sea, Bound. Lay. Meteorol., 97, 459–486,, 2000.
Andreas, E. L., Jordan, R. E., and Makshtas, A. P.: Parameterizing turbulent exchange over sea ice: the ice station weddell results, Bound. Lay. Meteorol., 114, 439–460,, 2005.
Bigg, E. K. and Leck, C.: Cloud-active particles over the central Arctic Ocean, J. Geophys. Res., 106, 32155–32166,, 2001.
Bintanja, R., van der Linden, E., and Hazeleger, W.: Boundary layer stability and Arctic climate change: A feedback study using EC-Earth, Clim. Dynam., 39, 2659–2673,, 2012.
Short summary
During ASCOS, clouds are more frequently decoupled from the surface than coupled to it; when coupling occurs it is primary driven by the cloud. Decoupled clouds have a bimodal structure; they are either weakly or strongly decoupled from the surface; the enhancement of the decoupling is possibly due to sublimation of precipitation. Stable clouds (no cloud-driven mixing) are also observed; those are optically thin, often single-phase liquid, with no or negligible precipitation (e.g. fog).
Final-revised paper