Reproductibilité des pluies et de la dynamique atmosphérique en Afrique Australe dans un modèle climatique régional : Approche multiscalaire

6533b861fe1ef96bd12c418c

RESEARCH PRODUCT

Reproductibilité des pluies et de la dynamique atmosphérique en Afrique Australe dans un modèle climatique régional : Approche multiscalaire

Julien Crétat Clémence Macron Benjamin Pohl Yves Richard

subject

[SDE.MCG] Environmental Sciences/Global Changes [ SDE.MCG ] Environmental Sciences/Global Changes [SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes Variabilité pluviométrique [ SDU.STU.CL ] Sciences of the Universe [physics]/Earth Sciences/Climatology Afrique Australe Modélisation climatique régionale

description

30 simulations numériques ne différant que par les conditions initiales de l'atmosphère permettent de documenter la reproductibilité du climat simulé en Afrique australe par un modèle climatique régional. Les simulations portent sur une saison pluvieuse (Décembre-Février 1993-94) proche de la moyenne en termes de pluies. A l'échelle synoptique, les régimes de circulation détectés sont clairement reproductibles d'une expérience à une autre. A des échelles plus fines, le modèle simule correctement les principaux pics pluviométriques et l'alternance entre phases humides et phases sèches. Certains épisodes peu reproductibles sont néanmoins clairement identifiables et correspondent à un contrôle plus faible des situations de large échelle.

year	journal	country	edition	language
2010-09-01

https://hal.archives-ouvertes.fr/hal-00484818

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