ENV100Y5 Lecture Notes - Lecture 43: Littoral Zone, Photic Zone, Intertidal Zone
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ENV100Y5 Full Course Notes
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Document Summary
Session 43: marine & coastal systems (i) (18- Mean depth ~ 3. 8 km (absolute darkness) Ocean water is vertically structured (as well as latitudinal structure) Temperature stratification varies with latitude ocean layers: water: warmed by sunlight and stirred by wind; water density . Deeper: thermocline = temperature , halocline = salinity (generally, pycnocline = density . Deep zone: dense, cold, sluggish water, unaffected by winds, storms, sunlight. The ocean floor has mountain ranges highest mountains and deepest valleys on earth are in the ocean this is because there is no with and erosion to the extent of outside water under the ocean. The ocean interacts with the atmosphere in complex ways. Oceans: moderating influence on temperature: areas around oceans tend to have mediated temperatures, we, in gta area, great some mediated from great lakes since they are quite large. Water has high specific heat (capacity for storing heat energy); takes a lot of energy to change water temp.
