Zonal Winds in the Central Equatorial Pacific and El Ni�o

Zonal Winds in the Central Equatorial Pacific and El Ni�o
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DOI:
10.1126/science.222.4621.327
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发表时间:
1983-10
期刊:
影响因子:
56.9
通讯作者:
D. Luther;D. E. Harrison;R. Knox
D. Luther;D. E. Harrison;R. Knox
中科院分区:
综合性期刊1区
文献类型:
--
作者:
D. Luther;D. E. Harrison;R. Knox

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在1950年至1978年期间,来自中太平洋近赤道岛屿的东风信风在每次厄尔尼诺之前都会减弱,除了1963年的厄尔尼诺。东风带的减弱和随后的瓦解并不是在几个月的时间内一致发生的,而是通过一系列持续1至3周的强烈西风爆发。爆发可能会迫使海洋中的赤道开尔文波,这既可以启动也可以维持厄尔尼诺事件的海面变暖特征。
Easterly trade winds from near-equatorial islands in the central Pacific weakened before each El Ni�o between 1950 and 1978, except for the 1963 El Ni�o. The weakening of the easterlies and their later collapse did not occur uniformly over several months, but rather through a series of strong westerly wind bursts lasting 1 to 3 weeks. The bursts may force equatorial Kelvin waves in the ocean that can both initiate and sustain the sea surface warming characteristics of El Ni�o events.