g104_class18_subtropical_gyres

g104_class18_subtropical_gyres - Geography 104 -

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Ocean Gyres - combine knowledge of global winds and Ekman flow - surface transport can be determined from wind direction/velocity - surface transport alters ocean surface dynamic height - dynamic height differences => geostrophic flow in ocean Geography 104 - “Physical Geography of the World’s Oceans”
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Ekman transport is 90° to right (NH) of the wind
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global atmospheric circulation tropical
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Global Atmospheric Pressure and Winds July January
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L H
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Ekman transport convergence, downwelling Ekman transport divergence, upwelling generally cooler water from upwelling generally warmer surface waters
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Ekman transport convergence, downwelling Ekman transport divergence, upwelling
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Global Winds and Atmospheric Pressure July January Trade Winds Westerlies Westerlies
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High Pressure Geostrophic Currents
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This note was uploaded on 01/06/2010 for the course GEOG 104 taught by Professor Staff during the Fall '08 term at UCSB.

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g104_class18_subtropical_gyres - Geography 104 -

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