Response of equatorial oceans to periodic forcing
Response of equatorial oceans to periodic forcing
复制标题
赤道海洋对周期性强迫的响应
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
R. Pacanowski
中科院分区：
文献类型：
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作者：
S. Philander;R. Pacanowski
周期为P的振荡风在赤道带(5/SUP0/N到5/SUP0/S)的上层几百米处引起以下特征的变化。(1)P<；10天；这些风的波动太快，不能产生强流和主要激发海浪。(2)10天150天：变幅几乎与频率无关。一个与强迫同相且对应于一系列定态的平衡响应被渐近逼近。这些时间尺度适用于5000公里宽的盆地。如果基准面的宽度超过5000公里，那么150日尺度就会增加。在温跃层下方的深海中，运动对应于上层海洋中非线性流的发散所产生的传播波。
Oscillating wind with a period P induce variability with the following characteristics in the upper few hundred meters of the equatorial zone (5 /sup 0/N to 5 /sup 0/S) of the ocean. (1) P<10 days; these winds fluctuate too rapidly to generate strong currents and excite primarily waves. (2) 10 days 150 days: The amplitude of variability is almost independent of frequency. An equilibrium response which is in phase with the forcing and which corresponds to a succession of steady states is approached asymptotically. These time scales are for a basin 5000 km wide. If the width of the basis exceeds 5000 km, then the 150 daytime scale increases. In the deep ocean below the thermocline, motion corresponds to propagating waves generated by the divergence of the nonlinear currents in the upper ocean.