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An Updated Description of the Conformal-Cubic Atmospheric Model

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High Resolution Numerical Modelling of the Atmosphere and Ocean

Summary

An updated description is presented for the quasi-uniform Conformal-Cubic Atmospheric Model. The model achieves high efficiency as a result of using semi-Lagrangian, semi-implicit time differencing. A reversible staggering treatment for the wind components provides very good dispersion characteristics. An MPI methodology is employed that allows the model to run efficiently on multiple processors. The physical parameterizations for the model are briefly described, and results are shown for the Held-Suarez test, the Aqua-Planet Experiment and an AMIP simulation having 125 km resolution. Antarctic snow accumulation is also shown from a shorter simulation having 50 km resolution.

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Authors
  1. John L. McGregor
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  2. Martin R. Dix
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Editor information

Editors and Affiliations

  1. International Pacific Research Center, University of Hawaii at Manoa Honolulu, Hawaii, 96822, USA

    Kevin Hamilton

  2. Earth Simulator Center, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan

    Wataru Ohfuchi

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McGregor, J.L., Dix, M.R. (2008). An Updated Description of the Conformal-Cubic Atmospheric Model. In: Hamilton, K., Ohfuchi, W. (eds) High Resolution Numerical Modelling of the Atmosphere and Ocean. Springer, New York, NY. https://doi.org/10.1007/978-0-387-49791-4_4

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