Skip to Main content Skip to Navigation
Theses

Contribution à l'Amélioration de la Fonction de Forçage des Modèles de Circulation Générale Océanique

Abstract : The present work focuses on improving the atmospheric forcing function used to drive ocean general circulation hindcasts of the last five decades. First, the behavior of the main parameterizations used to estimate surface fluxes that provide surface boundary conditions to OGCMs is studied in detail. The NEMO ocean/sea-ice model is then used at a 2° coarse resolution to validate atmospheric datasets especially designed to drive the DRAKKAR hierarchy of high-resolution models. These new datasets include, over the period 1958-2004, corrected surface atmospheric fields from ERA-40, a modified satellite radiation product from the ISCCP, and precipitation fields merging different global products. Relevant diagnostics tend to confirm that the simulation of several key features of the ocean circulation are significantly improved while driving DRAKKAR models with these new forcing sets.
Document type :
Theses
Complete list of metadatas

Cited literature [156 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00260841
Contributor : Laurent Brodeau <>
Submitted on : Wednesday, March 5, 2008 - 1:34:39 PM
Last modification on : Thursday, November 19, 2020 - 3:54:10 PM
Long-term archiving on: : Thursday, May 20, 2010 - 7:55:27 PM

Identifiers

  • HAL Id : tel-00260841, version 1

Collections

CNRS | UJF | LEGI | UGA

Citation

Laurent Brodeau. Contribution à l'Amélioration de la Fonction de Forçage des Modèles de Circulation Générale Océanique. Océan, Atmosphère. Université Joseph-Fourier - Grenoble I, 2007. Français. ⟨tel-00260841⟩

Share

Metrics

Record views

433

Files downloads

886