The contribution of shear to the evolution of a convective boundary layer

The contribution of shear to the evolution of a convective boundary layer

The role of shear in the development and maintenance of a convective boundary layer is studied by means of observations and large eddy simulations. Particular emphasis is given to the growth of the boundary layer and to the way in which this growth is affected by surface fluxes of heat and moisture...

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Veröffentlicht in:Journal of the atmospheric sciences 2003-08, Vol.60 (16), p.1913-1926
Hauptverfasser: PINO, David, VILA-GUERAU DE ARELLANO, Jordi, DUYNKERKE, Peter G
Format: Artikel
Sprache:eng
Schlagworte:
Atmosphere
Boundary layers
Convection, turbulence, diffusion. Boundary layer structure and dynamics
density interface
dynamics
Earth, ocean, space
entrainment
Exact sciences and technology
External geophysics
Heat
inversion
large-eddy simulation
Meteorology
mixed-layer
parameterization
top
wind shear
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Beschreibung
Zusammenfassung:The role of shear in the development and maintenance of a convective boundary layer is studied by means of observations and large eddy simulations. Particular emphasis is given to the growth of the boundary layer and to the way in which this growth is affected by surface fluxes of heat and moisture and entrainment fluxes. Pino et al analyze the processes that drive the latter mechanism, which accounts for approximately 30% of the growth of the mixing layer.
ISSN:0022-4928
1520-0469
DOI:10.1175/1520-0469(2003)060<1913:tcostt>2.0.co;2