Variaciones de largo periodo de los tipos de tiempo de superficie en México

Abstract

Surface pressure weather types for Mexico are examined. Variations for ten weather types for the period 1919–38 are presented. The cold polar outbreak over the Gulf of Mexico weather type shows a variation coincident with ten year running precipitation means for several places in Mexico for the period 1919–66. These oscillations are also similar to the ones observed in the North Atlantic for the zonal index by Lamb for the same period.