Internal waves of the ocean

It turns out that in the depths of the World Ocean can, as well as in the atmosphere, strong storms are played out, which are a possible cause from time to time underwater submarine disasters. Many experts believe that the so-called internal waves of the ocean that are caused, spread and decay in the depths of the World Ocean are guilty in the death of boats, without revealing their existence on the surface. It is these inner waves of the ocean that can lead the submarine to a greater depth, where it will be crushed by the water column.

Many experts believe that the so-called internal waves of the ocean that are caused, spread and decay in the depths of the World Ocean are guilty in the death of boats

What are these inner waves and how are they moving? What is the direct cause of their occurrence?

In the representation of man, the waves are connected only with the wind and the water surface. Usually surface waves have a height (the distance from the top to the bottom) to 18 m and the length (the distance between two successive peaks or soles) to 300 m. For specialists, the internal waves of the ocean remain unclear and their characteristics are still accurate not measured. Some scientists believe that such waves can have a height of several tens to several hundred meters. The length of the internal waves is equal to many miles, and their period (the time between the passage through some point of two consecutive vertices or soles) ranges from a few minutes to several hours.

But how do the inner waves of the ocean arise? Scientists believe that the main reason for their occurrence is the heterogeneity of the aquatic environment. Numerous deep oceanographic studies have shown that the ocean is not a homogeneous mass of water, but consists of certain layers, located at certain levels and differing in salinity, temperature, etc. Thus, each layer of water has its own density. The lower its temperature and the higher the salinity, the greater the density of water in it and, consequently, of the entire layer. Up to some point the layers are in an equilibrium state. When the equilibrium is broken, the heavier layers go down, and the lighter ones occupy their position. In this case, the layers of water slide along one another without mixing, and act on adjacent layers. Considering the fact that moving water masses have much more energy than wind (since the density of sea water is almost 1000 times greater than the density of air), the internal waves of the ocean are much larger than those of the surface.

One of the causative agents of such waves, according to oceanographic scientists, is the "swell" that occurs in the underwater current, when it flows, for example, over the underwater ridges. Like surface waves, the internal "swell" can spread over considerable distances. Another driver of internal waves can serve as strong storms and hurricanes, causing the movement of large masses of water. Strong underwater earthquakes can also cause, in the opinion of oceanographers, the inner waves of the ocean.

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