observational method Argentina 6 Coastal zones 6 South America 6 annual variation 6 rainfall 6 sea surface temperature 6 Article 4 Atlantic Ocean 4 Atlantic Ocean (South) 4 Atmospheric movements 4 Atmospheric temperature 4 Brazil 4 La Plata Basin 4 Southern Hemisphere 4 Wavelet analysis 4 astronomy 4 atmospheric circulation 4 baroclinic wave 4 climate modeling 4 coastal zone 4 endemic species 4 extreme event 4 model validation 4 numerical model 4 periodicity 4 precipitation assessment 4 prediction 4 priority journal 4 regional climate 4