Because the Earth’s surface is not uniform, tides do not follow the same patterns in all places. The shape of a seacoast and the shape of the ocean floor both make a difference in the range and frequency of the tides. Along a smooth, wide beach, the water can spread over a large area.
Because the centrifugal force is greater than the Moon’s gravitational pull, ocean water on the opposite side of the Earth bulges outward. The height of the tides can also vary during the course of a month because the Moon is not always the same distance from the Earth.
While reading we ran into the question “Why are tides different times of the day?”.
Tides caused by the sun DO occur at the same time every day – but tides caused by the moon (which are the largest) follow the position of the moon in the sky. So high tides occur when the moon is either more or less overhead – or beneath your feet.
In UK waters, high tides occur approximately every 12 hours 25 minutes. It takes 24 hours and 50 minutes (a lunar day) for the same location on Earth to re-align with the moon. This is because the moon orbits the Earth in the same direction that the Earth rotates on its axis.
High tides and low tides are caused by the moon. The moon’s gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. When you’re not in one of the bulges, you experience a low tide.
How does the moon affect the tides on Earth?
Because the moon is much closer to Earth than the sun, the moon exert s a much stronger gravitational pull. The Earth’s ocean s respond to the moon’s gravitational pull by bulging and dipping as the moon rotate s around the Earth. As the ocean bulges toward the moon, a high tide is created.
What happens to the tides when the Earth rotates?
As the Earth rotates, that area moves away from the moon’s influence and the tide ebbs. Now it is low tide in that area. As the Earth keeps rotating, another high tide occurs in the same area when it is on the side of the Earth opposite the moon (low high tide).
What are tides and why do they accure?
” They are simply the rise and fall of the sea levels mainly affected at the shores. Before we look into how tides occur, we must understand “ why do tides occur? ”, and the answer is “ Gravity ”. Any object which has mass possesses a gravitational field and the larger the mass the stronger the gravitational field is.
Tides are caused by gravitational pull of the moon and the sun. The rise and fall of the tides play an important role in the natural world and can have a marked effect on maritime-related activities. The image aboves shows the NOAA San Francisco Tide Station, in operation for more than 150 years.
A tide is when the level of water rises or falls due to the effect of gravitational forces of the earth, moon and the sun. The gravitational forces have effects everywhere along the earth, just not evenly. There is more to this actually.
Tide changes proceed via the following stages: Sea level rises over several hours, covering the intertidal zone; flood tide. The water rises to its highest level, reaching high tide. Sea level falls over several hours, revealing the intertidal zone; ebb tide. The water stops falling, reaching low tide.
What is the difference between spring tides and full tides?
This is the full moon. When the sun, moon and Earth are all lined up, the sun’s tidal force works with the moon’s tidal force. The combined pull can cause the highest and lowest tides, called spring tide s. Spring tides happen whenever there is a new moon or a full moon and have nothing to do with the season of spring.