Editing Tide

'''Tide'''

A '''[[tide]]''' is the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the [[Moon]], [[Sun]], and the rotation of the [[Earth]]. The times and amplitude of tides at a locale are influenced by the alignment of the Sun and Moon, by the pattern of tides in the deep ocean, by the [[amphidromic systems]], and the shape of the coastline and near-shore bathymetry.

== Causes ==

Tides are caused by the gravitational interaction between the Earth and the Moon. The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon. Another bulge occurs on the opposite side, since the Earth is also being pulled toward the moon (and away from the water on the far side). 

== Types of Tides ==

There are three basic types of tides, all of which occur in pairs: a high tide and a low tide. The [[Semidiurnal tide|semidiurnal tide]], where there are two high tides and two low tides each day. The [[Diurnal tide|diurnal tide]], where there is one high tide and one low tide each day. The [[Mixed tide|mixed tide]], where there is a large inequality in the high water heights, low water heights, or both.

== Tide Tables ==

[[Tide tables]], sometimes called tide charts, are used for tidal prediction and show the daily times and levels of high and low tides, usually for a particular location. Tide heights at intermediate times (between high and low water) can be approximated by using the rule of twelfths or more accurately calculated by using a published tidal curve for the location.

== Tidal Power ==

[[Tidal power]], also called tidal energy, is a form of hydropower that converts the energy of tides into useful forms of power - mainly electricity. Although not yet widely used, tidal power has potential for future electricity generation.

== See Also ==

* [[Oceanography]]
* [[Sea level rise]]
* [[Tidal locking]]
* [[Tidal range]]

== References ==

<references />

[[Category:Tides]]
[[Category:Oceanography]]
[[Category:Physical oceanography]]
{{Ocean-stub}}
{{Physics-stub}}
== Tide ==
<gallery>
File:tide_overview.svg|Tide overview
File:Tidal_circularization_figure1.svg|Tidal circularization figure 1
File:Tide_and_Moon.jpg|Tide and Moon
File:Tide_St._Simons,_GA_2018.webm|Tide St. Simons, GA 2018
File:Tide_coming_in_at_St._Simons,_Georgia,_US.webm|Tide coming in at St. Simons, Georgia, US
File:Tide_terms.png|Tide terms
File:Tide_schematic.svg|Tide schematic
File:High_tide_sun_moon_same_side_beginning.png|High tide sun moon same side beginning
File:Low_tide_sun_moon_90_degrees.png|Low tide sun moon 90 degrees
File:High_tide_sun_moon_opposite_side.png|High tide sun moon opposite side
File:Low_tide_sun_moon_270_degrees.png|Low tide sun moon 270 degrees
File:High_tide_sun_moon_same_side_end.png|High tide sun moon same side end
</gallery>