Physics and Dynamics Coupling Across Scales in the Next Generation CESM. Final Report [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy. Office of Science, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:: 8 pages : digital, PDF file
Additional Creators:: University Corporation for Atmospheric Research, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

This project examines physics/dynamics coupling, that is, exchange of meteorological profiles and tendencies between an atmospheric model’s dynamical core and its various physics parameterizations. Most model physics parameterizations seek to represent processes that occur on scales smaller than the smallest scale resolved by the dynamical core. As a consequence a key conceptual aspect of parameterizations is an assumption about the subgrid variability of quantities such as temperature, humidity or vertical wind. Most existing parameterizations of processes such as turbulence, convection, cloud, and gravity wave drag make relatively ad hoc assumptions about this variability and are forced to introduce empirical parameters, i.e., “tuning knobs” to obtain realistic simulations. These knobs make systematic dependences on model grid size difficult to quantify.

Report Numbers:

E 1.99:doe-ucar--0006745
doe-ucar--0006745

Subject(s):

Geosciences

Other Subject(s):

Note:

Published through SciTech Connect.
06/12/2015.
"doe-ucar--0006745"
"2011-201"
Bacmeister, Julio.

Type of Report and Period Covered Note:

Final;

Funding Information:

SC0006745

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