Observations of inertial‐period motions in the deep sea
Observations of inertial‐period motions in the deep sea
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DOI：
10.1029/rg006i004p00473
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发表时间：
1968-11
影响因子：
25.2
通讯作者：
F. Webster
中科院分区：
文献类型：
--
作者：
F. Webster
许多研究人员在从亚热带到极地纬度的深海地区观察到了惯性周期振荡。尽管观测技术有利于表层测量，但有证据表明所有深度都存在惯性运动。然而，没有强有力的证据表明惯性运动的幅度在表面附近最强。最近用系泊海流计进行的观察已经更全面地描述了惯性运动的特征。惯性运动具有短暂性，其产生和衰减时间为几天。对单个简单实验数据的分析表明，惯性运动在水平方向上的连贯性比在垂直方向上的连贯性大得多。因此，出现的画面是一种瞬态现象，垂直范围很薄，并且明显可能发生在海洋的任何地方。
Inertial-period oscillations have been observed by numerous investigators at deep-sea locations ranging from subtropical to polar latitudes. Although observational techniques have favored surface-layer measurement, there is evidence for the existence of inertial motions at all depths. There is, however, no strong evidence that the amplitude of inertial motions is strongest near the surface. The character of inertial motions has been described more fully by recent observations with moored current meters. Inertial motions have a transient nature, with generation and decay times of a few days. An analysis of the data from a single simple experiment shows that the inertial motions are coherent horizontally over much greater scales than they are coherent vertically. Thus the picture that emerges is one of transient phenomena, of thin vertical extent, and of apparent possible occurrence anywhere in the oceans.