HR: 09:15h
AN: A31E-05    [Abstracts]
TI: A DARE approach for 3D cloud resolving simulations of large scale atmospheric circulation
AU: * Kuang, Z
EM: kzm@atmos.washington.edu
AF: Dept. Atmospheric Sciences, University of Washington, University of Washington, Seattle, WA 98195-1640 United States
AU: Blossey, P N
EM: bloss@atmos.washington.edu
AF: Dept. Atmospheric Sciences, University of Washington, University of Washington, Seattle, WA 98195-1640 United States
AU: Bretherton, C S
EM: breth@atmos.washington.edu
AF: Dept. Atmospheric Sciences, University of Washington, University of Washington, Seattle, WA 98195-1640 United States
AB: We present a Diabatic Acceleration and REscaling (DARE) approach that enables large scale atmospheric circulations to be modeled by 3D cloud resolving simulations at a much reduced computational cost. In the DARE approach, the three-dimensional, natural-scale interactions between large scale circulation and deep convection are resolved. As a result, the DARE approach offers important advantages over existent parameterization approaches, including the Cloud Resolving Convective Parameterization, and is expected to be useful in a wide range of problems that involve interactions between large scale circulation, deep convection and associated cloud processes, whose investigation have been long plagued by deficiencies in cumulus/cloud parameterizations. Initial results from equatorial $\beta$-plane simulations using the DARE approach will be presented.
DE: 3337 Numerical modeling and data assimilation
DE: 3374 Tropical meteorology
DE: 3379 Turbulence
DE: 3314 Convective processes
DE: 3319 General circulation
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting