Publications des scientifiques de l'IRD

Zebiak S.E. (1989). Intraseasonal variability : a critical component of ENSO ?. In : Picaut Joël (ed.), Lukas R. (ed.), Delcroix Thierry (ed.). Western Pacific international meeting and workshop on Toga Coare : proceedings. Nouméa : ORSTOM, p. 379-388. Western Pacific International Meeting and Workshop on Toga Coare, Nouméa (NCL), 1989/05/24-30.

Titre du document
Intraseasonal variability : a critical component of ENSO ?
Année de publication
1989
Type de document
Colloque
Auteurs
Zebiak S.E.
In
Picaut Joël (ed.), Lukas R. (ed.), Delcroix Thierry (ed.) Western Pacific international meeting and workshop on Toga Coare : proceedings
Source
Nouméa : ORSTOM, 1989, p. 379-388
Colloque
Western Pacific International Meeting and Workshop on Toga Coare, Nouméa (NCL), 1989/05/24-30
The impact of intraseasonal variability on ENSO is studied in the context of the Zebiak and Cane (1987) coupled atmosphere-ocean model, and an idealized representation intraseasonal forcing. The effects of the parameterized forcing are examined in both simulation and forecast experiments, with similar results : the intraseasonal variability generally plays a minor role in altering the model behavior. Despite the uncertainties inherent in both the coupled model and the specified forcing, the results clearly suggest that intraseasonal variability is not an essential component of ENSO. At the same time, they present evidence of occasional sensitive periods or states of the coupled system in which intraseasonal forcing (and possibly other forcings) can indeed disrupt the future course of event. (Résumé d'auteur)
Plan de classement
Théories et méthodes statistiques [020STAT01] ; Climatologie / Météorologie [032CLIMET]
Descripteurs
COUPLAGE OCEAN ATMOSPHERE ; VARIATION SAISONNIERE ; MODELISATION ; ENSO
Description Géographique
PACIFIQUE TROPICAL OUEST
Localisation
Fonds IRD [F A30224] ; Montpellier (Centre IRD) ; Nouméa
Identifiant IRD
fdi:30224
Contact