globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL059989
Effects of westerly wind bursts on El Niño: A new perspective
Author: Lian T.; Chen D.; Tang Y.; Wu Q.
Source Publication: Geophysical Research Letters
ISSN: 0094-10057
EISSN: 1944-9788
Publishing Year: 2014
Volume: 41, Issue:10
pages begin: 3522
pages end: 3527
Language: 英语
Keyword: cold tongue El Niño ; warm pool El Niño ; WWB
Scopus Keyword: Lakes ; Ocean currents ; Down-welling ; Kelvin waves ; Multiplicative noise ; Ocean-atmosphere coupled model ; Surface current ; Warm pools ; Westerly wind bursts ; WWB ; Wind stress ; atmosphere-ocean coupling ; El Nino ; Kelvin wave ; thunderstorm ; upper ocean ; warm pool ; westerly
English Abstract: Daily observations from 1971 to 2010 reveal that every El Niño during this period was accompanied by congregated westerly wind bursts, suggesting a close relationship of these bursts with both "cold tongue" and "warm pool" El Niño events. With the addition of burst-like multiplicative noise to an intermediate ocean-atmosphere coupled model, it is shown that westerly wind bursts, by generating eastward equatorial surface currents and downwelling Kelvin waves, could be responsible for the existence of the warm pool El Niño and for the irregularity and extremes of the cold tongue El Niño. Whether these bursts give rise to one type of El Nino or the other depends on the timing of their occurrence relative to the phase of the recharge-discharge cycle of the equatorial upper ocean heat content. © 2014. American Geophysical Union. All Rights Reserved.
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Document Type: 期刊论文
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Affiliation: State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China

Recommended Citation:
Lian T.,Chen D.,Tang Y.,et al. Effects of westerly wind bursts on El Niño: A new perspective[J]. Geophysical Research Letters,2014-01-01,41(10).
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