The way the moon influences the tides is through phenomena related to gravity. That is, tides are the rise and fall of sea level that occur several times a day. The gravity of the sun, and especially that of the moon, attracts the ocean water and causes the tides . The moon also attracts the water closest to it. Similarly, the part of the ocean facing the moon curves towards it.
Similarly, on the opposite side of the Earth, the water curves in the opposite direction due to inertia. The Moon influences the entire Earth, not just the water. Inertia counteracts gravity and projects in the opposite direction. For this reason, the ocean on the other side of the Earth also bulges, although not as much as on the other side—that is, less. This can be better explained by considering the Moon's influence on the entire planet.
The prominence of the ocean means that on the beach, you can see how the seawater recedes and returns several times a day. The tides don't always occur at the same time every day. They change with the phases of the moon, since the moon rises in the sky at different times, something we can observe in the phenomenon known as spring tides , a process related to the moon's gravitational pull.
The height of the tides also varies and is not the same in all areas. During the waxing and waning phases of the moon, the tides are smaller and are called neap tides. Conversely, during the new and full moons, the Sun , Moon, and Earth align, and the tides are higher. These are called spring tides. The highest tides occur during the new moon because the gravitational pulls of the Moon and the Sun are in the same direction and their forces combine.
How the moon influences the tide according to its phases
The term " tide " is a generic word used to describe the alternating rises and falls of sea level relative to land, caused by the gravitational pull of the moon and sun on ocean waters. In reality, the gravitational influence of the moon and sun also induces "tides" in large lakes, the atmosphere, and even the Earth's crust, although to a much lesser degree and therefore not as readily apparent.
As explained, these tides are the natural rise and fall of vast bodies of water. Winds and currents stir the water, producing waves. The moon's gravitational pull causes the oceans to curve in a path toward our satellite. A similar bulge occurs on the far side of our planet, as Earth is also drawn toward the moon, a fascinating natural phenomenon.
On the other hand, ocean levels fluctuate daily as the sun, moon, and Earth interact. Because the moon is close to Earth , as both celestial bodies orbit the sun together, their combined gravitational forces cause global ocean levels to rise and fall. You can explore this topic further in the article on the influence of gravity.
types of tides
When the sun and moon are aligned, they exert a tremendously strong gravitational pull, which causes very high and very low tides, known as spring tides. When the sun and moon are not aligned, their gravitational forces cancel each other out, so the tides are not so noticeably high and low. These are called neap tides, in which the moon's influence is less intense.
1. Spring tides
When the moon is full or new, the gravitational pull of the sun and moon aligns. At these times, high tides are consequently very high, and low tides are low. This phenomenon can be understood as part of the moon's influence on the tides and is associated with the force that both exert on the water.
This phenomenon is known as spring tides, and it occurs when the Earth, the sun, and the moon are aligned. The gravitational forces of the moon and the sun collectively contribute to the tides. Spring tides occur during the full moon and the new moon.
2. Neap tides
When the moon is in its quarter phases, the sun and moon are positioned at a right angle, which causes bulges in the oceans that block each other. The result is very little difference between what happens with high and low tides, a phenomenon known as neap tides. This phenomenon is interesting, and its study can be found within the context of lunar mythology.
Neap tides are fundamentally fragile and occur when the gravitational forces of the moon and sun are directly opposite each other. Neap tides happen when the moon is in its first and last quarter phases.
formation of the tides
As the Moon revolves around the Earth, its gravitational force exerts an attraction on the continents and oceans. This is one way to understand how the Moon influences the tides, since, in the same way, Earth's gravity acts upon the Moon, preventing it from straying from its orbit. Understanding the formation of the solar system is also important , as it influences how these events occur and the nature of the Moon.
The Moon 's gravitational pull stirs mountains and creates a small but noticeable tide on Earth. It also affects seas and oceans, raising water levels by several meters in some areas. This effect is similar to the ripple effect of an appliance passing over a rug. Furthermore, there are interesting details to be found in lunar curiosities that enrich our understanding of these phenomena.
The Moon's gravitational pull causes tidal development that raises ocean levels. As the Earth rotates and new regions come under lunar influence , the rising tide moves with a delay, creating high tides in some areas and low tides in others. The ebb tide occurs along a quarter of the Earth's circumference ahead of the Moon's path and along the same quarter behind it, provided there are oceans.
The Moon's orbit around the Earth is affected by a wide variety of factors, and like the tides, it depends on the ocean's perimeter. In other words, a clear example of this would be the Mediterranean Sea, usually surrounded by land, which shows almost no tides, and the Gulf of Mexico, which only has one flow per day. Furthermore, there is a deeper relationship between the Moon and the Earth that can be explored in the article on [the topic].
It is unusual to see tidal development occurring some 13.000 km away on the other side of the Earth. The Moon's gravitational pull at that location is almost 7% less than on the adjacent side, but Earth's centrifugal force pushes the oceans outward.
This causes high and low tides in that part of the world. Otherwise, there would only be one enormous high tide and one low tide per Earth rotation. But, as you can verify if you are near the sea , the interval between tides is about six hours, and there are two of each type per day, a natural phenomenon that reflects the moon's influence on our planet.
Finally, to understand how the moon influences the tides, without the moon's influence, our oceans and seas would still have tides, albeit much weaker ones. The sun 's gravitational pull also acts on Earth. This force, much stronger initially, is what the moon exerts, its effect diminishing due to the distance between us and the sun.