Internal wave

Internal waves are gravity waves that oscillate within a fluid medium, rather than on its surface. To exist, the fluid must be stratified: the density must decrease continuously or discontinuously with depth/height due to changes, for example, in temperature and/or salinity. If the density changes over a small vertical distance (as in the case of the thermocline in lakes and oceans or an atmospheric inversion), the waves propagate horizontally like surface waves, but do so at slower speeds as determined by the density difference of the fluid below and above the interface. If the density changes continuously, the waves can propagate vertically as well as horizontally through the fluid.

单词	Internal wave
释义	Internal wave 英语例句库 At present the research of the deep water tractive current deposition mainly focus on contourite and internal tide, internal wave deposition. 目前深水牵引流沉积的研究主要集中于等深流沉积和内潮汐、内波沉积。原声例句 Scishow 精选系列 Now you've got a wave propagating along that boundary, an internal wave! 现在，波浪沿着边界传播，这是一种内波！ Scishow 精选系列 It's similar in the ocean, but rather than a ripple on the top, it's an internal wave. 这与海洋中的情况类似，但不是顶部的涟漪，而是内部的波浪。 Scishow 精选系列 A site that was cut off from the effects of internal waves experienced more bleaching than a site that did experience internal waves. 一个与内波隔绝的地方比一个受到内波影响的地方经历了更多的白化现象。 CNN 听力 2023年6月合集 For example, watch this mustard plant react to a cabbage caterpillar chewing on its leaves by releasing an internal wave of calcium. 例如，观察这棵芥菜对菜青虫咀嚼其菜叶的反应，它会释放出一种内部钙波。 CNN 10 学生英语 2023年5月合集 UNIDENTIFIED FEMALE: For example, watch this mustard plant react to a cabbage caterpillar chewing on its leaves by releasing an internal wave of calcium. 例如，观察这棵芥菜植物对卷心菜毛虫咀嚼其叶子的反应，释放出一种内部钙波。 Scishow 精选系列 But one study shows that large internal waves may bring in cooler waters and additional nutrients and plankton that the corals can use for food. 但一项研究表明，大的内波可能会带来更凉爽的海水以及更多的营养物质和浮游生物，珊瑚可以利用这些营养物质和浮游生物作为食物。英语百科 Internal wave Internal waves are gravity waves that oscillate within a fluid medium, rather than on its surface. To exist, the fluid must be stratified: the density must decrease continuously or discontinuously with depth/height due to changes, for example, in temperature and/or salinity. If the density changes over a small vertical distance (as in the case of the thermocline in lakes and oceans or an atmospheric inversion), the waves propagate horizontally like surface waves, but do so at slower speeds as determined by the density difference of the fluid below and above the interface. If the density changes continuously, the waves can propagate vertically as well as horizontally through the fluid.
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