本文通过1个概念模型讨论了西风爆发事件对暖池厄尔尼诺与冷舌厄尔尼诺两种事件的作用,并讨论了它们对应的物理机制。结果表明,由西风爆发所诱导的纬向平流异常和海洋波动对厄尔尼诺的多样性有着至关重要的作用。由于模型包含了最基本的海-洋与大气物理变量及其相互作用机制,本结果可为解释西风爆发事件对厄尔尼诺多样性影响研究提供最基本的框架。
Abstract
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.
关键词
厄尔尼诺 /
西风爆发 /
多样性
Key words
El Niño /
WWB /
diversity
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[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.
基金
国家海洋公益性行业科研专项经费项目资助(201105018);国家自然科学基金青年科学基金项目资助(41106019,41106020);国家海洋局第二海洋研究所基本科研业务费专项项目资助(JT1205)