The Mesoscale Stability of Entrainment into Cloud-Topped Mixed Layers
Open Access
- 1 January 1984
- journal article
- Published by American Meteorological Society in Journal of the Atmospheric Sciences
- Vol. 41 (1) , 92-101
- https://doi.org/10.1175/1520-0469(1984)041<0092:tmsoei>2.0.co;2
Abstract
The Lilly-type models for stratocumulus-capped mixed layers are shown to allow for a mesoscale instability in which mesoscale fluctuations of buoyancy and humidity are reinforced in phase by entrainment In a model of an AMTEX mixed layer, this mesoscale instability has a maximum growth rate of about 2 × 10−5s−1 at wavelengths 30 times the depth of the mixed layer. The instability is able to account for the existence and broad scale of the stratiform cloud patterns known as mesoscale cellular convection.Keywords
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