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Gyre Meaning and Definition in Dictionary

Definitions from Wordnet 2.0

  • a round shape formed by a series of concentric circles

Definitions from Wiktionary

  • a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

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Gyre Meaning and Definition in Wikipedia

A gyre is any large system of ocean currents moving in a circle, particularly those involved with large wind movements. Gyres are caused by the Coriolis effect: because the Earth is constantly rotating, ocean currents in the northern hemisphere tend to move in a clockwise direction and currents in the southern hemisphere in an anti-clockwise direction.

The Earth rotates from the west towards the east, and the Coriolis effect becomes more intense toward the poles. Because of this, gyres form especially strong currents on the western side of oceans (so that they are pushed against the eastern coast of the continents).

The term gyre can be used to mean any type of vortex in the air or the sea, but it is most commonly used in oceanography to refer to the major ocean current systems.

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