scholarly journals Unified Parameterization of Convective Boundary Layer Transport and Clouds With the Thermal Plume Model

2019 ◽  
Vol 11 (9) ◽  
pp. 2910-2933 ◽  
Author(s):  
Frédéric Hourdin ◽  
Arnaud Jam ◽  
Catherine Rio ◽  
Fleur Couvreux ◽  
Irina Sandu ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Convective Boundary Layer ◽  
Thermal Plume ◽  
Convective Boundary ◽  
Plume Model

A Thermal Plume Model for the Convective Boundary Layer: Representation of Cumulus Clouds

2008 ◽  
Vol 65 (2) ◽  
pp. 407-425 ◽  
Author(s):  
Catherine Rio ◽  
Frédéric Hourdin
Keyword(s):  
Boundary Layer ◽  
Mass Flux ◽  
Convective Boundary Layer ◽  
Turbulent Transport ◽  
Thermal Plume ◽  
Cumulus Clouds ◽  
Convective Boundary ◽  
Near Surface ◽  
Plume Model ◽  
Surface Drying

Abstract The “thermal plume model,” a mass-flux scheme combined with a classical diffusive approach, originally developed to represent turbulent transport in the dry convective boundary layer, is extended here to the representation of cloud processes. The modified parameterization is validated in a 1D configuration against results of large eddy simulations (LES), as well as in a 3D configuration against in situ measurements, for a series of cases of dry and cloudy convective boundary layers. Accounting for coherent structures of the mixed layer with the mass-flux scheme improves the representation of the diurnal cycle of the boundary layer, particularly its progressive deepening during the day and the associated near-surface drying. Results also underline the role of the prescription of the mixing of air between the plume and its environment, and of submean-plume fluctuations.

scholarly journals A thermal plume model for the Martian convective boundary layer

2013 ◽  
Vol 118 (7) ◽  
pp. 1468-1487 ◽  
Author(s):  
A. Colaïtis ◽  
A. Spiga ◽  
F. Hourdin ◽  
C. Rio ◽  
F. Forget ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Convective Boundary Layer ◽  
Thermal Plume ◽  
Convective Boundary ◽  
Plume Model
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