Previous: The meteorological phenomenon and vulcanological activity Next: References Up: Ext. Abst.

4. Conclusions.

From it described in the previous epigraphs could synthesize the following: The combination of conventional statistical techniques, with the method of the integral curves of the corrected modulated coefficients, all them applied to long chronological series of geophysical variables (variables that characterize the vulcanological and solar activity and the meteorological), it allowed to determine the main characteristic of the same, between which they stand out the existence of regular periods of old or minor activity, during which the annual frequency of the TC, CF, EW and the occurrence of volcanic eruptions, they have specific relationships. The hypothesis that there is a similar behavior between the resultant of the tendency and the periodicity of the annual frecuence of the meteorological phenomenon in study, and the solar activity, was proven. Particularly for the TC and the CF, upon allowing to determine the perturbed component, by means of the application of a additive model of chronological series, that showed the existence of statistical significant differences between the two fundamental states of the series (perturbed and not perturbed). The results of the application of two different methods (that of the disturbances and that of the superposed epoch), they threw a stable relationship, between the annual frequency of the TC, the CF and the EW and that of the EVE. The most relevant aspects of such relationship, they could summarize as continues.

The EVE diminishes significantly the annual frequency of the three studied phenomenon, particularly, those that occur in the tropical zone. , With regard to the TC one year after the eruption. In the extratropical zone, with regard to the FF in the same year of occurrence, and in both types, with regard to the EW, immediately to the EVE of being extratropical or of two to three years if it is tropical. From way not significant the EVE of a given latitudinal band increases the frequency of that meteorological phenomenon whose genesis takes place in the opposite band. In the tropical band of both hemispheres, the 100% of the EVE that occurred during the first semester of the year generated negative changes in the slope of the curve of frequency of TC, in the cyclones season of the same year. When the EVE took place in the second semester, the 100% of them decrease in the season of the following year. This last contributes to the increment of the TC in the average season. The 66% of the EVE of the extratropical zone of the first semester generated positive changes in the frequency of TC of the same year. Those that occurred in the second semester made of indifferent way. The absence of explanation of some anomalies could be associate with the influence of other forcing factors of the climate. They well could be the ENSO phenomenon, the sun, or the phase of the predominant QBO lasts you the influence of the SA originated for the EVE or for the interdependence of the meteorological studied phenomenon.