Evidences for a shift in barometric pressure, air temperature and rainfall patterns circa 1920, and its possible relation to solar activity

Norma Sánchez Santillán, Alfonso Esquivel Herrera, Rubén Sánchez-Trejo


A survey of 300 metereological stations worlwide located showed that nearly half of the stations presented a pattern change in the corelations between the sunspot number and barometric pressure, air temperature and precipitatio, around 1920. This change was mainly  fom 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.

Palabras clave

Climatic reversal; climatic variability; sunspots

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