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Original Articles

The Canadian Climate Centre spectral atmospheric general circulation model

, , , &
Pages 397-429 | Received 08 Jun 1984, Published online: 15 Nov 2010
 

Abstract

A general description of the Canadian Climate Centre atmospheric general circulation model is presented. The model includes, either in explicit or parametric form, all of the physical processes deemed important for long‐term climate simulations. Detailed descriptions of the methods used to represent these processes are presented.

Selected results from test runs with the model are presented to illustrate its sensitivity to some aspects of the subgrid‐scale vertical flux parameterizations and the gravity wave drag formulation.

Résumé

Cet article décrit le modèle de circulation générale (MCG) du Centre Climatolo‐gique Canadien. Tous les effets physiques jugés importants pour la modélisation du climat sont représentés, soit explicitement ou sous forme paramétrique. Les méthodes employées sont décrites en détail.

Une sélection de résultats générés lors de simulations du MCG illustre la sensibilité du modèle au choix de paramétrisation des flux verticaux et de la résistance due aux ondes de gravité.

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