Seasonal cycle seasonal variation 10 Climatology 6 decadal variation 6 temporal variation 6 Argentina 4 Cubic polynomials 4 Dry days 4 Inter-decadal variability 4 Interannual variation 4 Linear trends 4 Low pass filters 4 Patagonian coasts 4 Rio de la Plata 4 South America 4 Spatial and temporal variability 4 Time series analysis 4 Wavelet analysis 4 annual variation 4 regional climate 4 satellite data 4 spatial variation 4 trend analysis 4 twentieth century 4 wavelet analysis 4 (South) 2 Altimetry 2 Blended SST 2 Climate change 2 Climate simulations 2