G163S10L17_high_latitudes

G163S10L17_high_latitudes - HighLatitudeCirculation

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High Latitude Circulation Global wind field - westerlies to easterlies  Gyre patterns are broken up by land masses  Very different in northern/southern hemispheres  Descending branch of the conveyor belt
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Global Wind Field
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Subpolar or Subarctic  Gyres Westerlies to easterlies give subpolar gyres Easterlies Westerlies Divergence of Ekman Transports Upwelling Low Dynamic Height
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Subpolar or Subarctic  Gyres
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Subpolar or Subarctic  Gyres High productivity in  subpolar gyre  Less apparent in  southern hemisphere
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Global Wind Field
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Polar Gyres Easterly winds around polar high give gyres E a s t e r l i Convergence of  Ekman Transports Downwelling High Dynamic Height NP
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Arctic Ocean Distribution of land  is important Beaufort current is a  polar gyre  currents are  subpolar gyres
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Seasonal Sea Ice Formation  Microwave emission imagery from 78/79
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Arctic Sea Ice is Thinning
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This note was uploaded on 12/28/2011 for the course GEOG 163 taught by Professor Siegel,d during the Fall '08 term at UCSB.

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G163S10L17_high_latitudes - HighLatitudeCirculation

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