Statistics – Computation
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3214805g&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 14, CiteID L14805
Statistics
Computation
3
Atmospheric Processes: Convective Processes, Atmospheric Processes: Boundary Layer Processes, Atmospheric Processes: Theoretical Modeling, Atmospheric Processes: Turbulence (4490), Atmospheric Processes: Polar Meteorology
Scientific paper
A large eddy simulation (LES) of a cold air outbreak along with organized convection is presented. The computational grid was chosen to be fine enough to explicitly resolve small scale unorganized turbulence, while the size of the model domain was large enough to include the evolution of large scale organized convection. For the first time such an LES was performed with a stationary model domain, being one of the most extensive LES in meteorology so far. During the simulation, convective rolls were formed which showed typical characteristics as observed in nature, such as significantly increasing aspect ratios with increasing distance from the ice edge and orientation of the roll axes in direction of the mean wind shear vector.
Gryschka M.
Raasch S.
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