Water level fluctuations seemed to people something fantastic and unusual. In some places, the tides are so strong that there is an increase in water level to 19.6 meters.
Why do ebbs and flows occur?
A tide is an increase in the level of water in a body of water. It occurs as a result of a reaction to the influence of gravitational forces from the side of the Sun, Moon. Low tide is a phenomenon characterized by a decrease in water level to the lowest value.
Tides can be found in any sea. They occur in opposite regions of the Earth, which are located near the line facing the moon and the sun. The earth is moving, so at the seashore you can see several ebbs and flows at once in a day.
You should know that sea level jumps are not similar to each other. The movement of water and the level to which the sea rises depends on various indicators, for example, on latitude, land shape, atmospheric pressure, and wind intensity.
When gravity and inertia are violated, water level jumps begin on the planet. More often this phenomenon occurs near the ocean coasts. It is most affected by the moon, not the sun.
Why are there no tides in the Black Sea?
The replenishment of the waters of the Black Sea basin occurs due to the runoff of 17 rivers. This is 300 cubic kilometers per year. In the Black Sea, periodic jumps in water level occur, but they are insignificant.
The area of the sea is considered small for the occurrence of tides. Due to the small size of the Bosphorus, the Dardanelles and the Strait of Gibraltar does not allow the passage of ocean tidal waves.There are ebbs and flows in the Black Sea, but they are almost imperceptible, occur independently of the oceans.The size of tidal fluctuations is from three to ten centimeters.
You should know that the Sea of Azov is starting to chalk. At the end of the last century, the depth was up to 16 meters, and now 13 meters. Constant and eustatic fluctuations lead to the fact that the sea level rises by 20-25 centimeters in a hundred years.
Interesting fact: Changes in water level directly affect underwater inhabitants. The greatest pressure falls on the inhabitants of coastal waters. Due to the change in the height of the water in the sea, the development of individuals that live in one place is stimulated. A large number of living individuals poorly perceives water fluctuations.
What are the ebbs and flows?
In nature, you can find many varieties of ebbs and flows. This phenomenon is divided depending on the duration of the cycle.
Semidiurnal
Several ebbs and flows can occur per day. They can appear in the Barents Sea, as well as off the White Sea.
Per diem
There is one ebb and one ebb. The phenomenon can be met in the Pacific Ocean.
Mixed
Periodic changes in water heights can be seen in the Pacific Ocean.
Abnormal
They are characterized by ups and downs of water. These phenomena are found in separate places of the English Channel.
The tides are almost invisible in the seas, which are called inland. There are some types of vibrations that do not fall under the above characteristics. They can occur in rare cases. In the Black Sea, water level fluctuations can occur, but they are so weak that the level often does not exceed 1 cm.
Ebbs and flows - this is a natural phenomenon in which there is a change in the height of the water. In the Black Sea, slight changes occur due to the small area and small straits connecting it with the oceans. There are several varieties of natural phenomena that differ from each other. Plain height tidal fluctuations of the Black Sea water is in the range from three to ten centimeters. These values are small, so we can say that the natural phenomenon does not affect the Black Sea.
