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          Institute: MPI für Meteorologie     Collection: Climate Processes     Display Documents

ID: 174091.0, MPI für Meteorologie / Climate Processes
A large eddy simulation intercomparison study of shallow cumulus convection
Authors:Siebesma, A. P.; Bretherton, C. S.; Brown, A.; Chlond, Andreas; Cuxart, J.; Duynkerke, P. G.; Jiang, H. L.; Khairoutdinov, M.; Lewellen, D.; Moeng, C. H.; Sanchez, E.; Stevens, B.; Stevens, D. E.
Date of Publication (YYYY-MM-DD):2003-05
Title of Journal:Journal of the Atmospheric Sciences
Journal Abbrev.:J. Atmos. Sci.
Issue / Number:10
Start Page:1201
End Page:1219
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:This paper reports an intercomparison study on undisturbed trade wind cumulus convection under steady-state conditions as observed during the Barbados Oceanographic and Meteorological Experiment (BOMEX) with 10 large eddy simulation (LES) models. A main objective of this study is to obtain a quantitative assessment of the quality of the turbulent dynamics for this type of boundary layer clouds as produced by the different LES codes. A 6-h simulation shows excellent model-to-model agreement of the observed vertical thermodynamical structure, reasonable agreement of variances and turbulent fluxes, and good agreement of quantities conditionally sampled within the model clouds, such as cloud cover, liquid water, and cloud updraft strength. In the second part of this paper the LES dataset is used to evaluate simple models that are used in parameterizations of current general circulation models (GCMs). Finally, the relation of this work to subsequent LES studies of more complicated regimes is discussed, and guidance is given for the design of future observational studies of shallow cumulus boundary layers.
Comment of the Author/Creator:Date: 2003, MAY
External Publication Status:published
Document Type:Article
Affiliations:MPI für Meteorologie/Climate Processes (-2005)
External Affiliations:Royal Netherlands Meteorol Inst, NL-3730 AE De Bilt, Netherlands.; Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.; Meteorol Off, Bracknell RB12 2SZ, Berks, England.; Max Planck Inst Meteorol, Hamburg, Germany.; Univ Illes Balears, Dept Fis, E-07071 Palma de Mallorca, Spain.; Inst Marine & Atmospher Res, Utrecht, Netherlands.; Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.; W Virginia Univ, Morgantown, WV 26506 USA.; Natl Ctr Atmospher Res, Boulder, CO 80307 USA.; Univ Complutense Madrid, Dept Geofis & Meteorol, Madrid, Spain.; Univ Calif Los Angeles, Dept Atmospher Sci, Los Angeles, CA 90024 USA.; Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
Identifiers:ISI:000182569200001 [ID No:1]
ISSN:0022-4928 [ID No:2]
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