What causes the tidal phenomenon?

Tidal phenomena are caused by the gravity of the moon and the sun (with little effect) on the seawater on the earth.

Tidal phenomena are characterized by two climaxes every day and night, not once. What rises during the day is called tide, and what rises at night is called sunseeker. In short, tide refers to the rise of sea water during the day, and tide refers to the rise of sea water at night, but usually we often call it tide and tide at the same time. Generally, the place facing the moon is larger in tidal force, but the tidal force of the seawater facing away from the moon becomes smaller, and due to the centrifugal force, the seawater flows to the side facing away from the moon, so there will also be a climax.

At the full moon and the new moon, the sun, the earth and the moon are on the same line. At this time, the gravity of the sun and the gravity of the moon are just two opposite directions or the same direction, so the ocean tides reach a climax.

Significance of tidal phenomenon

1, tidal phenomena are very important for the maintenance of marine ecosystems.

Tidal fluctuation can not only drive the mixing and transportation of oxygen and nutrients in the ocean, but also provide a suitable living environment for intertidal organisms. Intertidal zone is a transitional zone in coastal areas. The ebb and flow of the tide makes this area change obviously between the dry tide and the high tide, which provides a place for many marine life to breed, prey and take refuge. The existence of tidal phenomena makes the marine ecosystem maintain complex and rich biodiversity.

2. The influence of tidal phenomena on climate and weather conditions can not be ignored.

Tidal fluctuation will drive a lot of water movement, which not only contributes to the distribution of temperature and the regulation of climate, but also affects the distribution of salinity and dissolved oxygen in water. These factors have an important influence on the formation and change of climate phenomena. In addition, tidal phenomena can also affect rainfall and wind direction, and play a certain regulatory role in the formation and movement of precipitation and storms.

Tide is also of great significance to human production and life.

Tides can facilitate the development and utilization of ocean energy, such as tidal power generation. Tidal power generation is a renewable energy technology that uses tidal water level difference to generate electricity. It has the characteristics of stability, continuity and predictability. In addition, tidal phenomena are also of great significance to fisheries and maritime traffic. Tides can drive the migration and reproduction of fish and other marine life in the ocean, and also have an impact on the navigation of ships and the operation of docks.

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