
A periodic reversal of the pressure pattern across the tropical Pacific Ocean during El Nino events.
Found on
http://ggweather.com/glossary.htm

(from the article `El Niño`) Beginning with the work of Sir Gilbert Walker in the 1930s, climatologists recognized a similar interannual change in the tropical atmosphere, which ... Equatorial circulation undergoes variations following the irregular periods of roughly three to eight years of the Southern Oscillation (i.e., ... ...
Found on
http://www.britannica.com/eb/a-z/s/133

A periodic reversal of the pressure pattern across the tropical Pacific Ocean during El Nino events.
Found on
http://www.encyclo.co.uk/local/22268

Reversal of atmospheric circulation in tropical Pacific Ocean that triggers the development of an El Nino.
Found on
http://www.physicalgeography.net/physgeoglos/s.html

A large-scale atmospheric and hydrospheric fluctuation centered in the equatorial Pacific Ocean. It exhibits a nearly annual pressure anomaly, alternatively high over the Indian Ocean and high over the South Pacific. Its period is slightly variable, averaging 2.33 years. The variation in pressure is accompanied by variations in wind strengths, ocea...
Found on
https://www.encyclo.co.uk/local/20128
No exact match found.