How Moon Affects Ebb and Flow of Tide

  • Post by Weather & Climate
  • Feb 26, 2023

The moon plays a significant role in the ebb and flow of the tides. As the moon orbits around the Earth, it exerts a gravitational force on the planet. This force creates a tidal bulge on the side of the Earth facing the moon, as well as a second bulge on the opposite side of the Earth.

The gravitational pull of the moon creates a “high tide” when the water is pulled towards the two bulges, causing a rise in sea level. When the Earth rotates and the moon moves to a different position, the gravitational force weakens, and the water flows back towards the middle of the ocean, creating a “low tide.”

The position of the sun also has an effect on the tides, but its gravitational force is weaker than the moon’s. When the sun, moon, and Earth are aligned, such as during a full or new moon, the gravitational pull is stronger, resulting in higher high tides (spring tides) and lower low tides (neap tides).

Overall, the moon’s gravitational force is the primary driver of the tides, with the sun playing a secondary role. The tide cycle repeats approximately every 12.5 hours, with two high tides and two low tides occurring during that time.

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