Skip to Main content Skip to Navigation
Reports

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
Document type :
Reports
Complete list of metadata

https://hal.inria.fr/inria-00073612
Contributor : Rapport de Recherche Inria <>
Submitted on : Wednesday, May 24, 2006 - 1:19:54 PM
Last modification on : Thursday, February 11, 2021 - 2:48:12 PM
Long-term archiving on: : Sunday, April 4, 2010 - 11:51:57 PM

Identifiers

  • 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⟩

Share

Metrics

Record views

155

Files downloads

166