What is circum Antarctic current?

What is circum Antarctic current?

The Antarctic Circumpolar Current (ACC) is an ocean current that flows clockwise (as seen from the South Pole) from west to east around Antarctica. An alternative name for the ACC is the West Wind Drift. The current creates the Ross and Weddell gyres.

How does the Antarctic Circumpolar Current work?

What is the Antarctic Circumpolar Current? A satellite view over Antarctica reveals a frozen continent surrounded by icy waters. Moving northward, away from Antarctica, the water temperatures rise slowly at first and then rapidly across a sharp gradient. It is the ACC that maintains this boundary.

What is the current called that circles around the continent of Antarctica?

Antarctic Circumpolar Current
Its main oceanographic feature, the Antarctic Circumpolar Current (ACC), is the world’s only global current, flowing eastwards around Antarctica in a closed circulation with its flow unimpeded by continents.

What is the most powerful ocean current?

The Antarctic Circumpolar Current
The Antarctic Circumpolar Current is the planet’s most powerful and arguably most important current. It is the only current to flow clear around the globe without being diverted by any landmass.

What current completely encircles the earth?

The Antarctic Circumpolar Current is the only current to completely encircle Earth (Figure 9.16). The current moves more water than any other current.

Is the Kuroshio current warm or cold?

The surface waters of the Kuroshio Current are warm and salty. This is because the Kuroshio starts in the tropics where the westward flowing North Equatorial Current reaches the western boundary of the North Pacific.

What is the Antarctic Divergence?

The region near 60°S, south of the Antarctic Polar Front, where high-salinity North Atlantic Deep Water upwells from 2500 m to just below the surface and mixes with low- salinity Antarctic Surface Water.

How long is the Antarctic Circumpolar Current?

The ACC is a massive flow of water that acts as a barrier separating the Southern Ocean from more northern oceans. The current extends from the sea surface to depths of 4000 m (more than 2.5 miles) and can be more than 120 miles wide.

What keeps Antarctica cold and icy?

Antarctica has a larger ice sheet Ice is cold, and Antarctica is covered by the largest ice sheet on earth. The bright, white surface of the ice sheet reflects most of the solar radiation (and heat) that reaches it back to space. The ice also cools the air directly above it, helping to keep Antarctica cool.

Who gave Antarctica its name?

Marinus of Tyre
The term Antarctic, referring to the opposite of the Arctic Circle, was coined by Marinus of Tyre in the 2nd century AD. The rounding of the Cape of Good Hope and Cape Horn in the 15th and 16th centuries proved that Terra Australis Incognita (“Unknown Southern Land”), if it existed, was a continent in its own right.

Which is the only current that encircles the entire earth without interruption?


Term Ocean Currents Definition Masses of ocean water that flow from one place to another
Term North Atlantic Current Definition North Atlantic current, Canary Current, North Equatorial current, Gulf Stream
Term West Wind Drift Definition The only current that completely encircles the Earth

At what latitude is the ACC found?

The Antarctic Circumpolar Current spans 8° of latitude or more, and its course varies slightly by location. In the Pacific and Indian oceans, its northern boundary occurs between latitudes 48° S and 58° S, and its southern extreme approaches 70° S, near the coast of Marie Byrd Land in Antarctica.

Which is the best definition of the word circumstance?

[ sur-kuhm-stans or, esp. / ˈsɜr kəmˌstæns or, esp. noun. a condition, detail, part, or attribute, with respect to time, place, manner,agent, etc., that accompanies, determines, or modifies a fact or event; a modifying or influencing factor: Do not judge his behavior without considering every circumstance.

Which is the best definition of the adjective circumstantial?

adjective of pertaining to, or derived from circumstances: a circumstantial result. of or dependent on circumstances

What is the medical definition of circumduction?

The circular movement of a limb such that the distal end of the limb delineates an arc. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company.

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