CONICET | Buscador de Institutos y Recursos Humanos

This work aimed to detect the influence of the sea surface temperature (SST) of coastal Atlantic and Pacificoceans on the seasonal mean air temperature in Argentina. The study region was delimited by 30-90o W and20-60o S. Patterns of interannual variability of seasonal (summer and winter) SST were obtained throughprincipal component analysis (PCA) in the T-mode. Linear correlations between time series derived from thismethod and the simultaneous mean air temperature series from weather stations were performed. Some of thevariability modes obtained showed a relationship with mean air temperature over a large portion of Argenti-na. Lagged-by-one-season correlations were also made to assess the predictability of the mean temperatureemploying these modes. Results showed a reasonable degree of predictability in spring temperatures usingwinter SST variability modes, but for autumn temperatures no relationship was found.