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Tidal range is the difference in height between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun, by Earth's rotation and by centrifugal force caused by Earth's progression around the Earth-Moon barycenter. Tidal range depends on time and location.
The highest water level ever recorded, 21.6 metres (71 feet), occurred in October 1869. It caused extensive destruction to ports and communities, much of which was attributed to a two-metre storm surge created by the Saxby Gale , a tropical cyclone , which coincided with a perigean spring tide .
King tides are the highest tides. They are naturally occurring, predictable events. Tides are the movement of water across Earth's surface caused by the combined effects of the gravitational forces exerted by the Moon, Sun, and the rotation of Earth which manifest in the local rise and fall of sea levels. Tides are driven by the relative ...
In coastal areas, because the ocean tide is quite out of step with the Earth tide, at high ocean tide there is an excess of water above what would be the gravitational equilibrium level, and therefore the adjacent ground falls in response to the resulting differences in weight. At low tide there is a deficit of water and the ground rises.
Tide range is the vertical distance between the highest high tide and lowest low tide. The size of the lunar tide compared to the solar tide (which comes once every 12 hours) is generally about 2 to 1, but the actual proportion along any particular shore depends on the location, orientation, and shape of the local bay or estuary.
The deeper tides will start Friday and continue through Monday, and can run 6 inches to a foot higher than a typical high tide in the summer. The king tides will return later in the fall, Oct. 27 ...
Even if the tide schedule is favorable, rough winds and rain can make these trips treacherous. Make sure you are wearing sturdy shoes with a good tread, as wet rocks, kelp, and other sea materials ...
More precisely, the lunar tidal acceleration (along the Moon–Earth axis, at the Earth's surface) is about 1.1 × 10 −7 g, while the solar tidal acceleration (along the Sun–Earth axis, at the Earth's surface) is about 0.52 × 10 −7 g, where g is the gravitational acceleration at the Earth's surface.