An observational and numerical study of a sheared, convective boundary...

Journal of the Atmospheric Sciences;  September 1, 1999 ;   Schneider, Jeanne M; Lilly, Douglas K;   787 words ......the observed boundary layer were similar...sheared convective boundary layers, but there were...two-thirds of the boundary layer. An overrunning...purely convective boundary layers would be inappropriate...atmospheric boundary layer are ...

Application of a perturbation recycling method in the large-eddy...

Journal of the Atmospheric Sciences;  August 1, 2002 ;   Mayor, Shane D; Spalart, Philippe R; Tripoli, Gregory J;   787 words ......inhomogeneous boundary layers such as internal boundary layers. In addition...the internal boundary layer develops, the...convective internal boundary layer during a cold-a...Introduction Internal boundary layers (IBLs) are...local internal boundary ...

Mesoscale fluctuations in scalars generated by boundary layer convection

Journal of the Atmospheric Sciences;  March 1, 1999 ;   Jonker, Harm J J; Duynkerke, Peter G; Cuijpers, Joannes W M;   787 words ......dry convective boundary layer (microscale convection...roughly 16 times the boundary layer depth. It turns...the order of the boundary layer height. Surprisingly...the convective boundary layer can behave completely...small scales (~ boundary layer depth), ...

Convective boundary layer height measurement with wind profilers and...

Journal of Atmospheric and Oceanic Technology;  December 1, 1998 ;   Grimsdell, Alison W; Angevine, Wayne M;   787 words ......cloud base in the presence of boundary layer clouds. This may be due to increased...the cloud. Calculation of the boundary layer height using the bulk Richardson...overestimates the height of the boundary layer and that the agreement between...and behavior of the atmospheric ...

Measurements of Boundary Layer Profiles in an Urban Environment

Journal of Applied Meteorology and Climatology;  June 1, 2006 ;   Frehlich, Rod; Meillier, Yannick; Jensen, Michael L; Balsley, Ben; Sharman, Robert;   787 words ...ABSTRACT Boundary layer profiles of mean temperature...conditions such as stable boundary layers with a low-level jet...structure of the urban boundary layer (UBL) has been slowed...environments and shallow boundary layers. In this paper, measurements...

A Combined Eddy-Diffusivity Mass-Flux Approach for the Convective Boundary...

Journal of the Atmospheric Sciences;  April 1, 2007 ;   Siebesma, A Pier; Soares, Pedro M M; Teixeira, João;   787 words ......parameterizations of convective boundary layers in climate and weather...the dry convective boundary layer, in spite of the...characteristics of neutral boundary layers and surface layers...of the convective boundary layer, although occasional...

A moist PBL parameterization for large-scale models and its application to...

Monthly Weather Review;  March 1, 2001 ;   Grenier, Herve; Bretherton, Christopher S;   787 words ......general purpose boundary layer parameterization...stratocumulus-- capped boundary layers (SCBLs) with...Role of the boundary layer in a numerical...Clear and Cloudy Boundary Layers, A. A. M. Holtslag...cloud-topped boundary layers. J. Atmos. ...

Large-Eddy Simulation of Stably Stratified Atmospheric Boundary Layer...

Journal of the Atmospheric Sciences;  August 1, 2006 ;   Basu, Sukanta; Porté-Agel, Fernando;   787 words ......simulations of stable boundary layers, even with relatively...Atmospheric boundary layers (ABLs) are usually...Arya 2001). The boundary layer becomes stably...and convective boundary layers. As a result, the stable boundary layer is also much...moderately ...

Large-eddy boundary layer entrainment

Journal of the Atmospheric Sciences;  August 15, 1998 ;   Lewellen, D C; Lewellen, W S;   787 words ......performed to explore boundary layer entrainment under...layer with the boundary layer dynamics driven...modest wind shear. Boundary layer entrainment involves...transported into the boundary layer and then mixed...the top of the boundary layer, this need ...

Properties and Parameterization of the Stable Boundary Layer over Moderate...

Journal of the Atmospheric Sciences;  November 15, 2003 ;   Brown, A R; Wood, N;   787 words ......on the stable boundary layer of moderate topography...the undisturbed boundary layer depth). Area...the resulting boundary layers, which are often...depth of the boundary layer over homogeneous...inhomogeneous stable boundary layers over orography...of the ...

Modeling of the Coastal Boundary Layer and Pollutant Transport in New...

Journal of Applied Meteorology and Climatology;  January 1, 2006 ;   Angevine, Wayne M; Tjernström, Michael; Zagar, Mark;   787 words ......the atmospheric boundary layer complex. During...formerly well-mixed boundary layer separates into possibly...the atmospheric boundary layer processes involved...episodes well. The boundary layer stability over the...lower atmosphere-the boundary layer ...

A New Parameterization for Shallow Cumulus Convection and Its Application...

Monthly Weather Review;  April 1, 2004 ;   McCaa, James R; Bretherton, Christopher S;   787 words ......cloud-topped marine boundary layers is investigated using...with four planetary boundary layer (PBL) parameterizations...structure of cloud-topped boundary layers in the northeast...another subtropical boundary layer cloud regime. 1...

Small-scale and mesoscale variability in cloudy boundary layers: Joint...

Journal of the Atmospheric Sciences;  December 15, 2002 ;   Larson, Vincent E; Golaz, Jean-Christophe; Cotton, William R;   787 words ......foundation of a boundary layer cloud and turbulence...cumulus, and clear boundary layers obtained from...trade-wind cumulus boundary layer. Part 1Testing...the planetary boundary layer. J. Atmos. Sci...variables for use in boundary layer models. J. ...

The flatland boundary layer experiments

Bulletin of the American Meteorological Society;  March 1, 1998 ;   Angevine, Wayne M; Grimsdell, Alison W; Hartten, Leslie M; Delany, A C;   787 words ......article describes the 1995 and 1996 Flatland boundary layer experiments, known as Flatland95 and Flatland96...theme of characterization of the convective boundary layer, especially the boundary layer top and entrainment zone. In this article...

An Integrated Turbulence Scheme for Boundary Layers with Shallow Cumulus...

Journal of Applied Meteorology;  September 1, 2005 ;   Angevine, Wayne M;   787 words ......cloud-topped boundary layer. 1. Introduction...atop convective boundary layers over land. If...Garratt (1992). Dry boundary layer schemes fall...the convective boundary layers is carried by...top of the dry boundary layer). The entrainment...cloud-topped ...