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versión impresa ISSN 0187-6236


BERMAN, A. L.; SILVESTRI, G.; COMPAGNUCCI, R.  y  VELASCO HERRERA, V.. Oceanic influence on southernmost South American precipitation. Atmósfera [online]. 2012, vol.25, n.3, pp. 217-233. ISSN 0187-6236.

The potential oceanic influence on southernmost South American precipitation since 1930 is analyzed in this study. The aim is to define oceanic characteristics that can produce wetter or drier conditions over the mentioned region on different time scales. Results suggest important precipitation-oceanic links in decadal and interdecadal oscillations. The eastern and central subtropical Indian, western tropical Pacific and western and central subtropical Pacific could be forcing the precipitation on decadal time scale. Moreover, the eastern tropical and western subtropical Indian and western and central subtropical Pacific could be forcing the variability of precipitation on interdecadal time scale. Although the research was focused in forcing of precipitation, relations among different regions of the Indian and Pacific oceans on decadal and interdecadal time scales have also been detected. Therefore, results presented here can be useful in describing new aspects of the remote influence of both oceans on regional climate.

Palabras llave : Patagonia; precipitation variability; decadal and interdecadal oscillations; precipitation-oceanic links; wavelet analysis.

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