Madden-Julian Oscillation usually occurs a year before these events though rarely during these events, and Walker Circulation tends to be weaker during these events.
Madden-Julian Oscillation usually occurs a year before these events though rarely during these events, and Walker Circulation tends to be weaker during these events. These events have also coincided with decreases in hurricane formation in the Atlantic and these events cause a decrease in upwelling off the Pacific coast of South America. This event is the warm phase of Southern Oscillation on the tropical Pacific Ocean. For 10 points, name this phase of a periodic atmospheric and oceanic cycle that is paired with the La Nina.
Madden-Julian Oscillation usually occurs a year before these events though rarely during these events, and Walker Circulation tends to be weaker during these events.
{El Nino} [{ENSO} or {El Nino} Southern Oscillation]