Dynamics of Super Cloud Clusters, Westerly Wind Bursts, 30-60 Day Oscilations and ENSO: An Unified View
نویسندگان
چکیده
منابع مشابه
Incorporating a semi-stochastic model of ocean-modulated westerly wind bursts into an ENSO prediction model
Prediction models of the El Niño-Southern Oscillation (ENSO) phenomenon often represent westerly wind bursts (WWBs), a significant player in ENSO dynamics, as stochastic forcing. A recent paper developed an observationally motivated semi-stochastic statistical model that quantifies the dependence of WWBs on large-scale sea-surface temperature. This WWB model is added here to a hybrid coupled mo...
متن کاملModulation of Westerly Wind Bursts by Sea Surface Temperature: A Semistochastic Feedback for ENSO
Westerly wind bursts (WWBs) in the equatorial Pacific are known to play a significant role in the development of El Niño events. They have typically been treated as a purely stochastic external forcing of ENSO. Recent observations, however, show that WWB characteristics depend upon the large-scale SST field. The consequences of such a WWB modulation by SST are examined using an ocean general ci...
متن کاملPredictability of SST-Modulated Westerly Wind Bursts
Westerly wind bursts (WWBs), a significant player in ENSO dynamics, are modeled using an observationally motivated statistical approach that relates the characteristics of WWBs to the large-scale sea surface temperature. Although the WWB wind stress at a given location may be a nonlinear function of SST, the characteristics of WWBs are well described as a linear function of SST. Over 50% of the...
متن کاملCase analysis of a role of ENSO in regulating the generation of westerly wind bursts in the Western Equatorial Pacific
[1] This study speculates that the low-frequency ENSO might have a regulating effect on the activity of episodic westerly wind bursts (WWB) in the western equatorial Pacific (WEP) based upon the analysis of two contrasting El Niño-Southern Oscillation (ENSO) phases during the 1996–2000 period and the onset of the 1982 El Niño. It suggests that rPWEP, the equatorial sea level pressure (SLP) grad...
متن کاملWesterly Wind Bursts: ENSO’s Tail Rather than the Dog?
Westerly wind bursts (WWBs) in the equatorial Pacific occur during the development of most El Niño events and are believed to be a major factor in ENSO’s dynamics. Because of their short time scale, WWBs are normally considered part of a stochastic forcing of ENSO, completely external to the interannual ENSO variability. Recent observational studies, however, suggest that the occurrence and cha...
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ژورنال
عنوان ژورنال: Journal of the Meteorological Society of Japan. Ser. II
سال: 1989
ISSN: 0026-1165,2186-9057
DOI: 10.2151/jmsj1965.67.2_205