![]() ![]() As the tide approaches low tide, the waves will be less powerful and flat. If the tide is too high and rising, each successive wave will push higher, while if the tide is high and falling, the energy in the waves will decrease with each wave. Knowing this and watching the moon cycles mean that you can use the tide to your benefit and find the best surf times each day. The daily tide cycle lasts 12 hours and 25.2 minutes from low to high tide and then back again to low tide. Tides also vary in height and intensity and even the times that high and low tide occurs around the world because the earth is not a perfect sphere and because as there is variability to the earth’s rotation in relation to the moon. Wind and weather patterns can also have an impact on the tide, along with high- and low-pressure systems. However, when the moon and sun are in alignment, they work together to cause the more extreme high and low tides that occur about every two weeks. Remember the sun is also exerting the force of gravity, but not at the same rate as the moon because of its distance. So, as the water rises on the side of the earth nearest the moon, the sea resists change and rises on the opposite side. Matter-water in this case-wants to keep doing the same thing until another force causes it to stop. As the moon pulls the water, it bulges toward the moon causing one of the tides.īut wait, tides occur twice a day! Why does the second tide cycle happen? On the side of the earth that is away from the moon, inertia is responsible for the second cycle. Of course, the pull on the ground is not substantial enough for anyone to notice, but we do see the pull on water. As the earth rotates, the moon’s gravity pulls on different parts of the planet including both land and water. The gravitational force exerted by the sun is about 200 times that used by the moon, but our planet’s nearby satellite has a more significant effect on tide due to its distance. Tide is all about gravity and the pulling forces of the moon and the sun on the earth. How this affects surfing, including your approach and the best times to take advantage of the tide, are all about understanding the science of waves. The tide cycle is a constant flow as the sea level rises and falls twice a day on most coasts around the world. ![]()
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