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  2. Theory of tides - Wikipedia

    en.wikipedia.org/wiki/Theory_of_tides

    It predicts the large amphidromic systems in the world's ocean basins and explains the oceanic tides that are actually observed. [34] The equilibrium theory—based on the gravitational gradient from the Sun and Moon but ignoring the Earth's rotation, the effects of continents, and other important effects—could not explain the real ocean ...

  3. Tide - Wikipedia

    en.wikipedia.org/wiki/Tide

    Mean high water springs (MHWS) – The average of the two high tides on the days of spring tides. Mean high water neaps (MHWN) – The average of the two high tides on the days of neap tides. Mean sea level (MSL) – This is the average sea level. The MSL is constant for any location over a long period.

  4. Tidal range - Wikipedia

    en.wikipedia.org/wiki/Tidal_range

    The data is based on astronomical phenomena and is predictable. Sustained storm-force winds blowing from one direction combined with low barometric pressure can increase the tidal range, particularly in narrow bays. Such weather-related effects on the tide can cause ranges in excess of predicted values and can cause localized flooding. These ...

  5. King tide - Wikipedia

    en.wikipedia.org/wiki/King_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 ...

  6. Tides in marginal seas - Wikipedia

    en.wikipedia.org/wiki/Tides_in_marginal_seas

    Tides in marginal seas are tides affected by their location in semi-enclosed areas along the margins of continents and differ from tides in the open oceans. Tides are water level variations caused by the gravitational interaction between the Moon, the Sun and the Earth.

  7. Tidal river - Wikipedia

    en.wikipedia.org/wiki/Tidal_river

    A phenomenon commonly associated with tidal rivers is a tidal bore, where a wall of water travels upriver during a flood tide. [1] Freshwater tidal rivers discharge large amounts of sediment and nutrients into the ocean. [3] This is a necessary influx for the global water balance. Rivers contribute about 95% of sediment entering the ocean. [4]

  8. Rip currents account for more than 80% of beach rescues ... - AOL

    www.aol.com/lifestyle/rip-currents-account-more...

    The number one threat to beachgoers is not sharks, jellyfish, or any undersea creature. In fact, the greatest threat comes from the water itself. Rip currents, which can unexpectedly pull ...

  9. Discourse on the Tides - Wikipedia

    en.wikipedia.org/wiki/Discourse_on_the_Tides

    The letter compares the ocean's waves to the disturbances in a vase of water, which move for three reasons: the slope of the vase, external forces exerted on the vase-water system, and the possible acceleration of the vase itself. [1] Comparably, the ocean's tides are due to Earth's terrain, wind currents, and circular accelerations.