Earth Ocean Currents

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Earth Ocean Currents

Actual transportation of water from one part of ocean to another. Because of differences in density, salinity, temperature of ocean waters, rotation of earth, shape of coastline and the prevailing winds.Currents circulate in clockwise direction in Northern Hemisphere and in anti-clockwise direction in Southern Hemisphere.

Currents in Pacific Ocean

a. North-Equatorial Current (Warm): Flows across from east to west, i.e., from North America it reaches the Philippines.

b. Kuroshio Current (Warm): N. Eq. current along the Philippines, Taiwan & Japan coast form this current. From the S.E. Japan the current, under the influence of prevailing westerlies, flows right across the ocean.

c. After reaching the west coast of N. America, it bifurcates into 2 branches :

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i. Alasca Current (Warm): Along the coast of British Columbia & Alasca.

ii. California Current (Cold): It moves southward along the coast of California

d. Oyashio Current (Cold): Flows along the east coast of Kamchatka peninsula.

e. Okhotsk Current (Cold): Comes from the N. Pole & merges with the Oyashio current.

f. East Australian Current (Warm): Flows from east to west in S. Pacific Ocean.

g. Peru Current (Cold): Cold current near the west coast of S. America.

Currents of Atlantic Ocean

a. Guinea Current (Warm): Flows off the W. African coast (hot).

b. Florida Current (Warm): Along the coast of US up to the cape Hatterus.

c. Gulf Stream (Warm): Beyond the Cape Hatterus up to the Grand Banks of New Found Land, florida current is known as Gulf Stream. From the Grand Banks the Gulf Stream moves eastward across the Atlantic as the Atlantic Drift.

d. Atlantic Drift divides into 2 branches:

i . Norwagian Current: The main current passes along the Norway coast & enters the Arctic Ocean.

ii . Canary Current: The south branch of N. Atlantic drift flows near Spain by this name.

e. 2 Cold Currents: The East Greenland Current & the Labrador Current flows from the Arctic Ocean into the Atlantic Ocean.The Labrader Current meets the Gulf Stream. The influence of these 2 currents produces the famous fogs around New Found Land. [Most busy fishing ground of the world].

f. Brazil Current (Warm): Flows along the S. American coast from North to South

g. Benguela Current (Cold): Cold current from S. to N near the ‘Cape of Good Hope’,

h. Falkland Current (Cold): Cold flowing along the S.E. coast of S. America from S. to N. (meets the Brazil current)

Currents of the Indian Ocean

  • The currents in the N. Indian Ocean differ entirely from the general pattern of circulation. They change their direction from season to season in response to the seasonal rhythm of the monsoons.
  • In winters the N. Equatorial current & the S. Equatorial current flows from East to West.
  • Mozambique Current: Warm current flowing through the Mozambique Channel.
  • Agulhas Current: Warm current at the South-East coast of Africa.

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