What is Ocean current?
[[File:Ocean surface currents.jpg|thumb|right|350px|A map of all the large ocean currents of the world.]] [[File:Currents.svg|All the world's currents on a continuous ocean map|thumb|350px|right]] An '''ocean current''' is a continuous movement of [[ocean]] water from one place to another. Ocean currents are created by [[wind]], water [[temperature]], [[salt]] content, and the gravity of the [[moon]]. The current's direction and speed depend on the [[shoreline]] and the ocean floor. They can flow for thousands of miles and are found in all the major oceans of the world. One major example of an ocean current is the [[Gulf Stream]] in the [[Atlantic Ocean]]. Ocean currents can be found on the water surface and deeper down. *Currents on the surface often depend on [[wind]]. They travel [[clockwise]] in the [[northern hemisphere]]. They travel [[Clockwise|counterclockwise]] in the [[southern hemisphere]]. They are found up to {{convert|400|m|ft|abbr=}} below the surface of the ocean. *Deeper currents depend on water pressure, temperature, and [[salt]] content. == Major ocean currents of the world == === Arctic Ocean === *[[East Greenland Current]] *[[Norwegian Current]] *[[Beaufort Gyre]] (water or ice flow) *[[Transpolar Drift]] (water or ice flow) ===Atlantic Ocean<ref>{{cite web|url=http://oceancurrents.rsmas.miami.edu/atlantic/|title=Surface Currents in the Atlantic Ocean|access-date=2009-03-28|archive-date=2008-12-07|archive-url=https://web.archive.org/web/20081207174324/http://oceancurrents.rsmas.miami.edu/atlantic/|url-status=dead}}</ref>=== *[[Agulhas Current]] *[[Angola Current]] *[[Antilles Current]] *[[Azores Current]] *[[Baffin Island Current]] *[[Benguela current]] *[[Brazil Current]] *[[Canary Current]] *[[Cape Horn Current]] *[[Caribbean Current]] *[[East Greenland Current]] *[[East Iceland Current]] *[[Falkland Current]] *[[Florida Current]] *[[Guiana Current]] *[[Guinea Current]] *[[Gulf Stream]] *[[Irminger Current]] *[[Labrador Current]] *[[Lomonosov current]] (a deep current) *[[Loop Current]]