發(fā)布時(shí)間：2019-01-07 21:32

【摘要】：本文基于南海陸坡區(qū)內(nèi)孤立波的觀測(cè),對(duì)內(nèi)孤立波的基本特征進(jìn)行了研究,經(jīng)分析得到其振幅為45m,最大水平流速可達(dá)1.6m·s-1,最大垂向流速為0.39m·s-1,傳播速度為1.46m·s-1。將內(nèi)孤立波經(jīng)過時(shí)的流速、溫鹽特征進(jìn)行了對(duì)比分析,結(jié)果表明,該內(nèi)孤立波引起水質(zhì)點(diǎn)的最大水平流速大于其傳播速度,即umaxc,形成了約束流核;在內(nèi)孤立波核心處水體密度近乎一致,N2接近于0,理查德森數(shù)Ri0.25,發(fā)生了剪切不穩(wěn)定�；趦�(nèi)孤立波的振幅并結(jié)合背景場(chǎng)溫鹽剖面,對(duì)內(nèi)孤立波引起的溫鹽場(chǎng)起伏進(jìn)行反演,并對(duì)其動(dòng)能、勢(shì)能進(jìn)行了估算。
[Abstract]:Based on the observation of solitary waves in the continental slope of the South China Sea, the basic characteristics of the internal solitary waves are studied in this paper. The results show that the amplitude is 45 m, the maximum horizontal velocity is 1.6 m s -1, and the maximum vertical velocity is 0.39 m s -1. The velocity of propagation is 1.46ms-1. The velocity and temperature characteristics of internal solitary wave are compared and analyzed. The results show that the maximum horizontal velocity of water quality caused by the internal solitary wave is greater than its propagation velocity, that is, umaxc, forms a confined flow core. The water density at the core of the inner solitary wave is almost the same, the N _ 2 is close to 0, and the Richardson number Ri0.25, is shearing instability. Based on the amplitude of the internal solitary wave and the temperature and salt profile of the background field, the fluctuation of the temperature and salt field caused by the internal solitary wave is inversed, and its kinetic energy and potential energy are estimated.
【作者單位】： 中國海洋大學(xué)物理海洋實(shí)驗(yàn)室;
【基金】：國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃項(xiàng)目(2014CB745003) 國家高技術(shù)研究發(fā)展計(jì)劃項(xiàng)目(2013AA09A502) 國家自然科學(xué)基金項(xiàng)目(41176008;41176010)資助~~
【分類號(hào)】：P731.24

【共引文獻(xiàn)】

相關(guān)期刊論文 前1條

1 LIN Feilong;HOU Yijun;LIU Ze;HU Po;FANG Yong;DUAN Yongliang;;The influence of background waves on internal solitary waves after the transit of Typhoon Neast in the northern South China Sea[J];Acta Oceanologica Sinica;2014年07期

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本文編號(hào)：2404191