20*-28' 20- 20*-2<' 



Sourh 7V 



ANTARCTICA ATLANTHC-INDIAN RIDGE 



East Atlantic Ocean Temperature Profile 



WALVIS RIDGE 



CAPE VERDE PLAT. 



60* North 

 REYK1ANE5 RIDGE 



East Atlantic Ocean Salinity Profile 



Soulh 70° 

 ANTARCTICA 



ATLANTIC-INDIAN RIDGE 



WALVIS RIDGE 



CAPE VERDE PLAT 



^jv North 

 BEYKJANES RIDGE 



depth of 2000 meters where the North 

 Atlantic Deep Water flows southward 

 below the Antarctic Intermediate 

 Water. This North Atlantic Deep 

 Water forms in the extreme North 

 Atlantic where cold water sinks to' 

 a depth of some 3000 meters and 

 travels southward to the Antarctic 

 where it rises over the colder Ant- 

 arctic Bottom Water and yet remains 

 below the Antarctic Surface 

 Water. The chart of temperatures 

 at 1000 meters shows that this North 

 Atlantic Water, which has reached 

 the Southern Ocean at this level, is 

 less cold than water at 200 meters. 

 Both the salinity and temperature 

 charts at 1000 meters show the warm 

 and highly saline water that flows 

 out of the Mediterranean at a depth 

 of about 300 meters. It travels 

 down the continental slope and 

 spreads westward and northward in 

 the Atlantic at intermediate 

 depths. The core of this distinctive 

 Mediterranean water is particularly 

 noticeable on both the vertical 

 profiles of salinity and temperature. 







llfo«,i„^ fort;^ 



VeTT 



erhoi 



.■r 



Compare this chart of the prevailing 

 winds with the currents chart on 

 pp. 204-05. In general, the main 

 surface currents follow the winds. 



261 



