Abstract

SANCHEZ SANTILLAN, Norma; ESQUIVEL HERRERA, Alfonso  and  SANCHEZ-TREJO, Rubén. Evidences for a shift in barometric pressure, air temperature and rainfall patterns circa 1920, and its possible relation to solar activity. Hidrobiológica [online]. 2002, vol.12, n.1, pp.29-36. ISSN 0188-8897.

A survey of 300 meteorological stations worldwide located showed that nearly half of the stations presented a pattern change in the correlations between the sunspot number and barometric pressure, air temperature and precipitation, around 1920. This change was mainly from a negative correlation to a positive correlation. Furthermore, we also found strong correlations between sunspots and pressure and precipitation in both tropical and extratropical latitudes; for the temperature the strong correlations appear mainly in extratropical zones.

Keywords : Climatic reversal; climatic variability; sunspots.

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