Using a simple conceptual coupled model, this study discussed the role of Westerly Wind Burst Event(WWB) on the two types of El Niño events(the Cold-Tongue El Niño type and the Warm-Pool El Niño type). The results indicate that WWB induced zonal advection and oceanic waves are very important to El Niño diversity. Since the model just includes fundamental oceanic and atmospheric processes and their interactions, our results provide the fundamental dynamical framework of El Nin~o diversity.
Key words
El Niño /
WWB /
diversity
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] RASMUSSON E M, CARPENTER T H. Variations in tropical sea surface temperature and surface wind fields associated with the Southern Oscillation/El Niño[J].Monthly Weather Review,1982,110:354-384.
[2] ASHOK K, BEHERA S K, RAO S A, et al. El Niño Modoki and its possible teleconnection [J]. Journal of Geophysical Reseach,2007,112(C11): C11007.
[3] KUG J S, JIN F F, AN S I. Two types of El Niño events: Cold tongue El Niño and warm pool El Niño[J]. Journal of Climate,2009,22(6):1 499-1 515.
[4] JIN F F. An equatorial ocean recharge paradigm for ENSO Part I: Conceptual model[J].Journal of Atmospheric Science,1997,54(7):811-829.
[5] YU J Y, KIM S T. Relationships between extratropical sea level pressure variations and the central Pacific and eastern Pacific types of ENSO[J]. Journal of Climate,2011,24(3):708-720.
[6] LIAN Tao, CHEN Da-ke, TANG You-min, et al. Effects of westerly wind bursts on El Niño:A new perspective[J].Geophysical Research Letter,2014,41(10):3 522-3 527.
[7] CHANG C P, LI T. A theory for the tropical tropospheric biennial oscillation[J]. Journal of Atmospheric Science,2000,57(14):2 209-2 224.
[8] LIAN Tao, CHEN Da-ke, TANG You-min, et al. A theoretical investigation of the tropical Indo-Pacific tripole mode[J].Science China: Earth Sciences,2014,57(1):174-188.
[9] ZEBIAK S E. Tropical atmosphere-ocean interaction and the El Niño/Southern Oscillation phenomenon[D]. Massachusetts: MIT,1984.
PDF(2804 KB)
