Southern oscillation: Difference between revisions
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<div class="definition"><div class="short_definition">Originally defined in 1924 by Gilbert Walker as a low-latitude, planetary- [[scale]] "seesaw" in [[sea level pressure]], with one pole in the eastern Pacific and the other in the western Pacific–Indian Ocean region.</div><br/> <div class="paragraph">The [[pressure]] seesaw is associated with a global pattern of atmospheric anomalies in [[circulation]], [[temperature]], and [[precipitation]]. The primary timescale of the [[oscillation]] is interannual–multiyear, and it is now recognized to be primarily a response to basin-scale [[sea surface temperature]] variations in the equatorial Pacific arising from coupled ocean–atmosphere interactions, the opposite extremes of which are the [[El | <div class="definition"><div class="short_definition">Originally defined in 1924 by Gilbert Walker as a low-latitude, planetary- [[scale]] "seesaw" in [[sea level pressure]], with one pole in the eastern Pacific and the other in the western Pacific–Indian Ocean region.</div><br/> <div class="paragraph">The [[pressure]] seesaw is associated with a global pattern of atmospheric anomalies in [[circulation]], [[temperature]], and [[precipitation]]. The primary timescale of the [[oscillation]] is interannual–multiyear, and it is now recognized to be primarily a response to basin-scale [[sea surface temperature]] variations in the equatorial Pacific arising from coupled ocean–atmosphere interactions, the opposite extremes of which are the [[El niño|El Niño]] and [[La niña|La Niña]] warm and cold events. <br/>''See also'' [[ENSO]].</div><br/> </div><div class="reference">Philander, S. George 1990. El Niño, La Niña, and the Southern Oscillation. Academic Press, International Geophysics Series, Vol. 46. </div><br/> <div class="reference">Walker, G. T. 1924. Correlation of seasonal variations in weather IX: A further study of world weather. Mem. Indian Meteor. Dep.. 24. 275–332. </div><br/> | ||
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Revision as of 09:44, 4 December 2013
Southern Oscillation[edit | edit source]
Originally defined in 1924 by Gilbert Walker as a low-latitude, planetary- scale "seesaw" in sea level pressure, with one pole in the eastern Pacific and the other in the western Pacific–Indian Ocean region.
The pressure seesaw is associated with a global pattern of atmospheric anomalies in circulation, temperature, and precipitation. The primary timescale of the oscillation is interannual–multiyear, and it is now recognized to be primarily a response to basin-scale sea surface temperature variations in the equatorial Pacific arising from coupled ocean–atmosphere interactions, the opposite extremes of which are the El Niño and La Niña warm and cold events.
See also ENSO.
See also ENSO.
Philander, S. George 1990. El Niño, La Niña, and the Southern Oscillation. Academic Press, International Geophysics Series, Vol. 46.
Walker, G. T. 1924. Correlation of seasonal variations in weather IX: A further study of world weather. Mem. Indian Meteor. Dep.. 24. 275–332.
