Southern oscillation index

From Glossary of Meteorology
Revision as of 18:01, 26 January 2012 by imported>Perlwikibot (Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == Southern Oscillation index == </div> <div class="definition"><div class="short_definition">...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)



Southern Oscillation index

A measure of the state of the Southern Oscillation.

A common index used for this purpose is the sea level pressure at Tahiti minus the sea level pressure at Darwin, Australia, divided by the standard deviation of that quantity. It is closely associated with El Niño and is thus often referred to as ENSO (El Niño–Southern Oscillation).


Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.