Global Semi-Lagrangian Atmospheric Model Based on Compact Finite-Differences and its Implementation on a Parallel Computer

Abstract : The semi-Lagrangian atmospheric model on the sphere based on compact finite differences is presented. In the two-dimensional case, the potential vorticity is used as one of the prognostic variables. Fourth-order compact finite differences are used to discretize first- and second-order derivatives. The results including real data tests presented for 2D shallow water version with orography demonstrate its accuracy with the time steps several times greater than in Eulerian model. The 3D version of the model uses the absolute vorticity equation. Some results including a real data forecast are presented. The parallel implementation of the 3D model on a distributed memory parallel computer is described
Type de document :
Rapport
[Research Report] RR-3080, INRIA. 1997, pp.25
Liste complète des métadonnées

https://hal.inria.fr/inria-00073612
Contributeur : Rapport de Recherche Inria <>
Soumis le : mercredi 24 mai 2006 - 13:19:54
Dernière modification le : samedi 17 septembre 2016 - 01:06:49
Document(s) archivé(s) le : dimanche 4 avril 2010 - 23:51:57

Fichiers

Identifiants

  • HAL Id : inria-00073612, version 1

Collections

Citation

Mikhail Tolstykh. Global Semi-Lagrangian Atmospheric Model Based on Compact Finite-Differences and its Implementation on a Parallel Computer. [Research Report] RR-3080, INRIA. 1997, pp.25. 〈inria-00073612〉

Partager

Métriques

Consultations de la notice

137

Téléchargements de fichiers

129