Extratropical forcing of convectively coupled Kelvin waves during Austral winter From: Journal of the Atmospheric Sciences | Date: February 1, 2003| Author: Kiladis, George N; Straub, Katherine H | Copyright American Meteorological Society Feb 1, 2003. Provided by ProQuest LLC.Copyright information

ABSTRACT

Observations are presented that link extratropical Rossby wave disturbances excited in the Southern Hemisphere subtropical jet to the initiation of convectively coupled Kelvin waves in the Pacific intertropical convergence zone (ITCZ) during austral winter. A baroclinic, zonal wavenumber 6, eastward-propagating Rossby wave train in the subtropical jet turns northeastward in the vicinity of Australia, inducing upper tropospheric divergence and vertical motion fields that sprea...

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