In this article we discuss about high tide and low tide, how low tide affect on earth water and how high tide affect on earth water, also discuss about how tide link our moon.
- What is tide?
- How Does Low & High Tides Occur?
- Do low tide and high tide effect the sea only?
What is tide?
We will learn about the Low and High Tides in detail. But How low and high tides occur? To understanding this, first you have to know some more points. What is Low and High Tides? Or Tidal ebb?
People who live in areas settled on the sea shore, or go for a walk there, They get see this almost daily. It happens, that the level of sea water rises very high after a few hours and decrease again after a few hours. When the water level rises, it is called “ High Tides ”. And after about 6 hours and 13 minutes, when the sea water reaches its lowest level, it is called “ Low Tides ”.
When the sea water reaches its high level, it is called “High Tides”. Now we have to know two more things before we understand how the tide occurs. One is Gravity Force Second One is Centrifugal Force. Now firstly discuss about gravity, you must have seen the magnet and it attract the iron towards it.
Our earth, along with iron, pulls or attract almost everything on the earth towards its center. Be it stone, water, buildings, trees, animals, or humans, whatever. When you want to bounce away from the earth, the earth pulls you back again, the force of the Earth is called the force of gravity.
Now we discuss about Centrifugal Force. When we rotate an object round and round it exerts a force from the center to the outside this is called centrifugal force. For Example whenever we rotate an object round and round then the object wants to spread outwards if any part of it’s lose or soft, then it start spreading outwards.
If someone wears Faraq and goes round and round, his clothes are pulled outwards. Now You Know about the Gravity and Centrifugal Force. So now we can come to our main topic.
How Does Low & High Tides Occur?
Here you are looking at the sun, the earth and the moon. The earth resolves around the sun and the moon resolves around the rotating earth. About 29% of the Earth is land and 71% is water. The blue part is water. The water level rises in the sea approximately every 6 hours and 13 minutes and after 6 hours and 13 minutes, this level decrease again.
Now to understand the tides, we have to apply both these forces here. First of all, Gravity has pulled the water from all the sides towards the earth. So, when the earth rotates round and round the centrifugal force work here and the water around it and does push towards. Also to maintain the volume of water pressure is applied on this entire water from top and bottom to the inside.
The Gravity of the Earth is so high that the earth keeps keeps attracting all its water from all sides. And the sun is far away from us. So the gravity of the sun has little effect on the earth water and there is a slight stretch here. But the gravity of the sun does not affect much further, after the center of the earth.
So, the water on the sun side, do pull to the outside and due to this stretch, both these parts are under pressure. Also this pressure pushes water to the other side as well. More stretched towards the sun a little less on the other side and pressed towards the center on both the sides. Now it is the turn of the moon.
So, we also bring the moon into the scene. So, the moon is closer to the earth than the sun. And the gravity of the moon also has a greater effect on earth’s water than sun. Whenever the moon resides, the part of the water in its side and keep attracted towards the moon. The moon’s gravity also effects mainly till the center of the earth and further it is very less or do fades away.
Therefore, the water in front of the moon side do pulls more outside and due to this stretch there is pressure on both these parts and the water on the other side of the moon is also pulled slightly outward. In these two places where the moon is on one side of the earth and the sun is on the other side, these two sides are called high tides. In these two places where there is nothing on either side of the earth, these two sides are called low tides.
So, when the sun, moon and earth are in a straight line. So, because of the combination of the gravity of both the sun and the moon a lot of drag is created and the highly tide occurs on the new moon and full moon. I take about 27 days, 7 hours, 43 minutes, and 11.5 second for the moon to make one round of the earth. So, when the moon crosses about 25% of this orbit in about 6 to 7 days.
So, on coming here, the moon draws the water of this where the earth part face on moon. Due to which, the difference between high tide and low tide is gravity reduced. In this way, it occurs the highest tide on every full moon and new moon or no moon. On seventh or eighth day after every full moon or new moon, when the angle of 90 Degree is made from the sun, the earth and the moon then the lowest high tide occur.
Do low tides and high tides effect the sea only?
No, moon tides affects on rivers, lakes and ponds etc. But in rivers, lakes and ponds etc there is much less water than the sea. Therefore, their water level increases and decreases by only a few millimeters or centimeters. And this tide is so low that it is not known but the sea is very big and there is too much water in it. Therefore, the tide is sea water are very high and the tide is easily visible to us.
In the end, we’ve learned about the incredible tide that happen in the oceans. Tide are the rise and fall of sea levels that occur regularly. They happen because of the moon’s and the sun’s pull on the Earth’s water. Picture the Earth as a big ball with water all around it. The moon’s gravity pulls on this water, making it bulge out on the sides facing the moon and on the opposite side.
This creates high tides in those areas. The sun also has some effect, but not as much as the moon. When the moon and the sun line up during the new and full moons, their combined pull creates even higher tides, called “spring tides.” These happen every 27 days or so. Tides don’t just affect the sea; they also influence rivers, lakes, and ponds, though not as noticeably because there’s less water in them.
The ocean’s tides, on the other hand, are strikingly visible. So, next time you’re at the beach and notice the water rising and falling, remember it’s all part of a fantastic dense between the Earth, the moon, and the sun. Nature’s rhythm is fascinating and reminds us of the wonders of our planet and the universe. Let’s appreciate and take care of our oceans and the delicate balance of nature that surrounds us.