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The result is that parts of the Pacific Coast can have 3 low tides a day. Similarly, there are areas in the world like the Gulf of Mexico or the South China Sea that have only one high tide a day. Mechanical tide clocks used on the Pacific Coast must be adjusted frequently, often as much as weekly, and are not useful in diurnal areas (those ...
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 water stops rising, reaching a local maximum called high tide. Sea level falls over several hours, revealing the intertidal zone; ebb tide. Oscillating currents produced by tides are known as tidal streams or tidal currents. The moment that the tidal current ceases is called slack water or slack tide. The tide then reverses direction and is ...
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Tides are driven by the relative positions of the Earth, Sun, Moon, land formations, and relative location on Earth. In the lunar month, the highest tides occur roughly every 14 days, at the new and full moons, when the gravitational pull of the Moon and the Sun are in alignment. These highest tides in the lunar cycle are called spring tides.
On the Pacific side, tides are mixed and mainly semidiurnal, with mean and spring tide ranges of 1.1 and 1.2 m, respectively. [61] There is enormous tidal energy potential in the strait. [ 62 ] The strait is prone to Williwaws , "a sudden violent, cold, katabatic gust of wind descending from a mountainous coast of high latitudes to the sea".
The California Current is part of the North Pacific Gyre, a large swirling current that occupies the northern basin of the Pacific. The related California Current Conservation Complex is a grouping of federally-designated marine protected areas that have been on the UNESCO list of tentative World Heritage Sites since 2017, which includes the ...
The Kuroshio Current (黒潮, "Black Tide"), also known as the Black Current or Japan Current (日本海流, Nihon Kairyū) is a north-flowing, warm ocean current on the west side of the North Pacific Ocean basin. It was named for the deep blue appearance of its waters.