Abstract
Abstract The wind-driven seasonal variability in the tropical North Pacific Ocean is analyzed by means of a two-layer primitive equation ocean model implemented in an idealized Pacific extending from 30°S to 52°N and forced by an analytic seasonally varying wind stress field derived from ECMWF winds. The oceanic response in the tropical region is found to be mainly in the form of annual beta-refracted baroclinic Rossby waves radiating from the eastern boundary. Validation of these results with TOPEX/Poseidon (T/P) altimeter data is carried out. Zonal longitude–time diagrams of sea surface height anomalies and zonally integrated meridional transports computed from T/P data and from the winds through the Sverdrup relation by Stammer are compared with the corresponding quantities obtained from the model results. Such comparison shows that the model does capture the essential features of the wind-driven seasonal variability in the tropical North Pacific. The analysis of the model results, based also on sensit...
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