atlantic ocean currents

The Florida current after having the water of Antilles current is known as Gulf Stream beyond Cape Hatteras. The Canary cold current ameliorates the otherwise hot weather conditions of the western coasts of North Africa.The Labrador Current, an example of cold cur­rent, originates in the Baffin Bay and Davis Strait and after flowing through the coastal waters of Newfound­land and Grand Bank merges with the Gulf Stream around 50°W longitude. Gulf Stream 5. The North Atlantic Drift, which is an extension of the Gulf Stream system to the south, provides this northward flow of warm and saline waters into the polar seas. (a) One branch enters the Mediterranean Sea while (b) the other branch, known as Rennell current (named after scientist Rennell), enters the Bay of Biscay and flows up to the northern coasts of France and Spain.Rennell current is further divided into sub- branches wherein one branch enters the English Chan­nel while the other branch after flowing to the south of Ireland merges with the North Atlantic Current, (c) Third branch is the main branch which flows through the coasts of Spain, Azores etc. The northward branch after taking north-westerly course merges with the north equatorial current near Trinidad while the second branch turns southward and contin­ues as Brazil warm current parallel to the east coast of South America. This current becomes most extensive and developed near 30The eastward continuation of the Brazil current is called South Atlantic Drift. (a) One branch flows along the coast of Norway across Wyville Thompson Ridge and reaches the Norwegian Sea. This current is originated because of the deflection of the Brazil warm current eastward at 40° S latitude due to the deflective force of the rotation of the earth. This zone is characterized by the subsid­ence of air from above and the resultant anticyclonic conditions. The main north-easterly branch is still called Gulf Stream.


The Falkland cold current coming from the south merges with the Brazil current near 40°S lati­tude.The cold waters of the Antarctic Sea flows in the form of Falkland cold current from south to north along the eastern coast of South America upto Argentina. The water confined in this gyral is calm and motionless. In fact, this current is the continuation of North Atlantic Drift which turns southward near the Spanish coast and flows to the south along the Coast of Canaries Island. All the branches are collectively called as North Atlantic Drift or current. (i) Florida current from the strait of Florida to Cape Hatteras,(ii) Gulf Stream from Cape Hatteras to the Grand Bank, and(iii) North Atlantic Drift (current) from Grand Bank to the Western Euro­pean coast.Florida current is in fact, the northward ex­tension of the north equatorial current. Trades) and the westerlies. This current is more constant, stronger and of greater extent than the north equatorial current. Labrador Current 7. This currents is less developed in the west due to stress of trade winds. The Hurricane Pacific Analysis image shows the current and forecast positions of any active tropical cyclones in the central and eastern Pacific Ocean. Canary Current 6. The existence of this cold wall of cold water near the eastern coast of the USA is attributed to many factors.

In other words, it flows throughout the year while the monsoon winds (say equatorial westerilies) in the equatorial calm zone disappear during winter season.According to another view the counter equatorial current is originated due to piling up of immense volume of water because of the conver­gence of the two great equatorial warm currents near the coast of Brazil.

According to one group the sea weeds grow along the banks of Azores and Bahamas and these are brought by the sea waves and winds.According to another theory sea weeds grow in the Mexican Gulf and these are brought by the Gulf Stream to the Sargasso Sea.

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