A Proposal for the Intercomparison of the Dynamical Cores of Atmospheric General Circulation Models
- 1 October 1994
- journal article
- Published by American Meteorological Society in Bulletin of the American Meteorological Society
- Vol. 75 (10) , 1825-1830
- https://doi.org/10.1175/1520-0477(1994)075<1825:apftio>2.0.co;2
Abstract
A benchmark calculation is proposed for evaluating the dynamical cores of atmospheric general circulation models independently of the physical parameterizations. The test focuses on the long-term statistical properties of a fully developed general circulation; thus, it is particularly appropriate for intercomparing the dynamics used in climate models. To illustrate the use of this benchmark, two very different atmospheric dynamical cores—one spectral, one finite difference—are compared. It is found that the long-term statistics produced by the two models are very similar. Selected results from these calculations are presented to initiate the intercomparison. Abstract A benchmark calculation is proposed for evaluating the dynamical cores of atmospheric general circulation models independently of the physical parameterizations. The test focuses on the long-term statistical properties of a fully developed general circulation; thus, it is particularly appropriate for intercomparing the dynamics used in climate models. To illustrate the use of this benchmark, two very different atmospheric dynamical cores—one spectral, one finite difference—are compared. It is found that the long-term statistics produced by the two models are very similar. Selected results from these calculations are presented to initiate the intercomparison.Keywords
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