Fluctuaciones interanuales a multidecádicas de la temperatura de verano en el centro-oeste de Argentina y procesos atmosféricos/oceánicos/astronómicos globales

the summer (oct-mar) temperature in central-west argentina (cwa, 28°-36°s y 65°-70°w) shows a behaviour spatially coherent and temporally in phase at interannual to interdecadal scales. (agosta et al. 2004). it is found the air temperature shows significant cuasi-oscillations in the spectral bands of roughly 11-yr. and 18- yr. the former is linked to the solar forcing, the latter to the effects of the climate transition of the summer 1976/77 (ipcc 2001). this transition transitorily affected the low-frequency variability of the temperature as an interference phenomenon upon the cuasi-11-yr.-solar cycle domain.