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A near‐annual coupled ocean‐atmosphere mode in the equatorial Pacific ocean
Author(s) -
Jin FeiFei,
Kug JongSeong,
An SoonIl,
Kang InSik
Publication year - 2003
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2002gl015983
Subject(s) - climatology , mode (computer interface) , pacific decadal oscillation , advection , pacific ocean , atmosphere (unit) , el niño southern oscillation , oceanography , data assimilation , environmental science , ocean heat content , madden–julian oscillation , geology , oceanic basin , ocean current , structural basin , meteorology , geography , convection , physics , computer science , thermodynamics , operating system , paleontology
A near‐annual coupled ocean‐atmosphere mode in the equatorial Pacific is studied using the NCEP ocean assimilation data set. This fast mode of tropical Pacific climate variability is superimposed on the slow 3–5 year El Niño‐Southern Oscillation (ENSO) phenomenon. Anomalous zonal advection plays a crucial role in generating this fast mode. It is suggested that this fast mode can be understood in terms of a coupled Pacific basin mode. It is responsible for the occurrence of some minor El Niño and La Niña events and has implications for the prediction of ENSO events.