9-IOc4-DeepCirc0 - Deep Water Circulation Surface Ocean Circulation Driven by the wind Deep Water Circulation Below ~200 m(~90 of ocean Driven by

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Deep Water Circulation Surface Ocean Circulation Driven by the wind Deep Water Circulation Below ~200 m (~90% of ocean) Driven by density contrasts Temperature Salinity Thermohaline Circulation’ 0
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Density Structure Thermocline - Rapid decrease in temp. with depth (~200 - 1000 m) Halocline - Rapid increase in salinity w/ depth (~200 - 1000 m) Pycnocline 0
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Thermohaline Circulation Thermohaline circulation = “ Adjustment into density stratification” Thermo – temperature Haline - salt Density contrasts are small Circulation is slow *1-2 m/day More dense Less dense will sink 0
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Water Masses Surface water - Mixed layer ~200 m Intermediate water –thermocline to ~1500m Deep water - below intermediate, but not in contact with the seafloor Bottom water - In contact with the seafloor 0
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Water Masses Surface water (down to ~2000m) Central Water (to bottom of main thermocline) Intermediate water (to ~1500m) Deep water (below IW, but not on bottom. Down to ~4000 m) Bottom water (in contact w/ seafloor) NADW AIW AABW Surface water North Atlantic South 0
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Deep Water Masses Antarctic Intermediate water (AIW) North Atlantic Deep water (NADW) Antarctic Bottom water (AABW) NADW AIW AABW Surface water North Atlantic South 0
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Water Masses Water masses = parts of ocean identifiable by their T and S (density) Water Masses do not mix easily They flow over and under each other 0
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This note was uploaded on 04/08/2008 for the course OCE 1001 taught by Professor Smith during the Spring '08 term at University of Florida.

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9-IOc4-DeepCirc0 - Deep Water Circulation Surface Ocean Circulation Driven by the wind Deep Water Circulation Below ~200 m(~90 of ocean Driven by

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