298
Views
8
CrossRef citations to date
0
Altmetric
Original Articles

Treatment of the Coriolis Terms in Semi-Lagrangian Spectral Models

Pages 293-302 | Received 01 Mar 1995, Published online: 26 Jul 2011
 

ABSTRACT

In a conventional three-time-level semi-Lagrangian scheme, the Coriolis terms are treated in an explicit centred fashion. This option is not available in a two-time-level scheme, and an alternative treatment must be sought. Two possible alternatives are tested here in the framework of a three-time-level scheme. Both are stable and accurate, but only one generalizes easily to a rotated coordinate system; this alternative is based on absorbing the Coriolis terms into the semi-Lagrangian advection.

RÉSUMÉ

Dans un schéma semi-lagrangien à trois niveaux temporels les termes de Coriolis sont traités de façon explicite et centrée. Cette option n'étant pas disponible dans un schéma à deux niveaux temporels, on doit donc chercher une solution de remplacement. On essaie deux solutions possibles dans le cadre d'un schéma à trois niveaux temporels. Les deux sont stables et précises mais une seule se généralise facilement à un système de coordonnées tournées. Cette dernière fonctionne en absorbant les termes de Coriolis dans l'advection semi-lagrangienne.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.