Tidal Theory

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Author:
mardiellen
ID:
201716
Filename:
Tidal Theory
Updated:
2013-02-19 04:54:13
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Tidal Theory
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  1. Tide Raising Forces
    Are the results of the gravitational and centrifugal influences of the Sun-Earth-Moon system on bodies of water upon the Earth's surface.
  2. 3 Types of Tides
    Diurnal Tides- 1 High Water and 1 Low Water tide per day

    Semi-Diurnal Tide- 2 High Water and 2 Low Water tides per day

    Mixed Tides- A tide which is intermediate between predominantly diurnal and predominantly semi-diurnal tides.
  3. Equilibrium Tide
    The predictable relationships of the sun & moons motions are used to identify the mathematical components of the tide-raising force. The tide generated by this force is called the equilibrium tide.

    It assumes a frictionless sea of uniform depth with out land masses.
  4. Real Tides
    • The tide we actually experience and observe.
    • It is generated by the forces which make up the equilibrium tide, but is modified by various natural phenomena.
  5. Factors generating Real Tides
    • Natural Resonance of water body
    • Friction
    • Land Masses
    • Shallow Water
    • Coriolis Effect
    • Weather
  6. Tidal Stream
    Is the horizontal movement which accompanies the rise and fall of the tide.
  7. Current
    Is any horizontal movement of the sea that is not caused by the tide.

    They are caused by prevailing winds and water masses of different salinities or temperatures.

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