Seasonal Pulsation Connections in Southern Oceanic Oscillations

Abstract

The focus of this study is on significant, interconnected climate patterns that shape worldwide weather, sea temperatures, and atmospheric circulation. Here, the Sun-Earth interaction is the variation in Earth’s position as the seasons change. A seesaw pattern in the sea surface temperatures of the Indian Ocean characterizes the Indian Ocean Dipole (IOD). The system cycles through positive and negative phases, characterized by distinct temperature distributions in the west and east. The El Niño-Southern Oscillation (ENSO), a significant recurring climate cycle in the tropical Pacific, influences global weather patterns and impacts Brazil’s temperature and rainfall. The Antarctic Oscillation describes the north-south shift of the powerful westerly winds surrounding Antarctica. The tightening winds that move closer to Antarctica during the positive phase help maintain storms at more southerly latitudes. The equatorward shift of winds in a negative phase leads to an increase in cold fronts and storms reaching mid-latitudes.