Semidiurnal tides are characterized by two high tides and two low tides of approximately equal size occurring within a 24-hour period. This tidal pattern is primarily driven by the gravitational forces of the moon and sun, as well as the Earth's rotation, and is the most common type of tidal cycle observed worldwide.

Semidiurnal Tide

Semidiurnal tides are a type of tidal pattern characterized by two high tides and two low tides of approximately equal magnitude each lunar day. This pattern is most commonly observed in the Atlantic Ocean and is primarily influenced by the gravitational forces of the moon and the sun, along with the Earth's rotation.

Semidiurnal Tides

High tides

Low tides

Gravitational forces are the attractive forces between masses, which govern the motion of celestial bodies and the structure of the universe. They are described by Newton's law of universal gravitation and further refined by Einstein's general theory of relativity, which accounts for the curvature of spacetime around massive objects.

Gravitational Forces

Moon and sun

Earth's rotation refers to the spinning of the planet around its axis, which takes approximately 24 hours to complete and is responsible for the cycle of day and night. This rotation affects various phenomena such as the Coriolis effect, time zones, and the apparent motion of stars in the sky.

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