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Improvement of simplified atmospheric general circulation models by parametrizing the flow dependent model error

Objectif



The overall objective of the research is monthly to seasonal climate prediction. The attention is focused on the prediction of large-scale flow.
Atmospheric low-frequency variability relies on a few number of variables. We intend to build a simplified model based on the projection of the equations onto these variables employing EOFs (empirical orthogonal functions).
The main problem in using EOFs as a basis for the large-scale flows is the closure. The effect of the numerous unresolved scales and physical processes must be parametrized. Therefore, our aims will be (i) to design an idealised framework where flow dependent parametrizations of the unresolved scales can be developed and (ii) apply these parametrizations to a simplified GCM.
If time allows, such model will be then validated through the estimation of its ability in simulating the large scale dynamics of the atmosphere, and through the performance of extended range forecasts.

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Programme(s)

Thème(s)

Appel à propositions

Données non disponibles

Régime de financement

RGI - Research grants (individual fellowships)

Coordinateur

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Contribution de l’UE
Aucune donnée
Adresse
Ecole Polytechnique
91128 PALAISEAU
France
Coût total
Aucune donnée

Participants (1)