MESOSCALE CONVECTIVE SYSTEMS IN NW MEXICO DURING THE STRONG ENSO EVENTS OF 1997-1999

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Arturo Valdés Manzanilla

Abstract

This study presents an analysis of the summertime mesoscale convective systems (MCSs) that developed in northwestern Mexico during the strong ENSO events of 1997-1999. From the analysis of geostationary data, results indicate that the largest number of MCSs was associated with the 1997 El Niño event throughout a longer active period. During the La Niña event of 1999 fewer MCSs were observed, which had developed over a shorter active period. The occurrence of the MCSs is linked to the location of the ridge and the anti-cyclonic anomalies at 500 hPa and 200 hPa, respectively.

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Author Biography

Arturo Valdés Manzanilla, Evaluación y Tecnología Ambiental, División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco

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