OCS 1005 Lecture : Lecture 11
15 Mar 2019
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Document Summary
I n deep water even in the tropics, water is very cold! Typical temperature profiles at polar, tropical and mid- latitudes. Cold water found in deep depths is the same everywhere! Typical vertical profiles of temperature, salinity and density at mid- latitudes. Halocline - - - w here salinity changes rapidly. Pycnocline - - - w here density changes rapidly. Deep zone comes into contact with atmosphere in the polar regions where heavy cold water filling the deep zone is formed. The ocean i s stratified into three density. The ocean is divided into three density zones: Surface zone the upper layer of the ocean, containing the least dense water. The surface zone is only about 2% of total ocean volume. Pycnocline a zone in which density increases with depth, containing about 18% of all ocean water. Deep zone contains about 80% of all ocean water. There is little change in density throughout this layer.
