❓ why
Why do tides vary from day to day?
NatureOcean
Quick Answer
Tides vary because the Moon’s and Sun’s gravity combine with Earth’s rotation and local geography. The alignment of the Sun, Moon, and Earth changes the size of the tide.
The Full Story
The Moon is the main driver of tides, but the Sun also contributes. When the Sun and Moon line up during new and full moon, spring tides occur and tidal ranges are larger. When the Sun and Moon are at right angles during quarter moons, neap tides occur and tidal ranges are smaller. Local coastline shape, seafloor depth, and bays can greatly amplify or reduce the tide at a given place. That is why tidal patterns differ dramatically between the open ocean and places like the Bay of Fundy.
Key Facts
1.Spring tides occur at new and full moon
2.Neap tides occur during quarter moons
3.Local coastlines can strongly change tidal range
YouTube Angle
Suggested video title for this topic:
"Why are some tides bigger than others?"