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Coriolis Effect Global Winds Chapter 2.3 Pages 57-60 Chapter 2.3 Pages 57-60
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Coriolis Effect The effect of Earth’s rotation which makes winds curve –Winds want to move in a straight line but the earth rotates under them, making it seem as though the wind curved.
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Coriolis Effect In the Northern hemisphere Earth rotates counter clock wise –All winds curve to the right.
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Coriolis Effect In the Southern hemisphere Earth rotates clock wise –All winds curve to the left.
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Global Winds Winds that blow steadily from specific directions over long distances. Caused by unequal heating of the surface.
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Global Winds
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Exit Pass Why does it happen, and what does it cause? What is the Coriolis Effect? (Why does it happen, and what does it cause?)
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Doldrums Located: At the equator Area of Low PressureArea of Low Pressure –Rising Air Definition: a state of inactivity or stagnation Winds: Calm
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Horse Latitudes Located: 30°N and 30°S Area of high pressureArea of high pressure –Sinking air Winds: Calm –Sailors would get trapped and run out of food and water, they threw their horses overboard.
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Trade Winds Between the –Equator and 30°N –Equator and 30°S Winds: Steady from the east –Sailors relied on them to carry goods from Europe to West Indies and S. America.
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Prevailing Westerlies Location: Mid- latitude winds –Between 30° & 60°N –Between 30° & 60°S Winds: From the west Cause our weather Blow away from the horse latitudes.
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Polar Easterlies BetweenLocation: Between –60°N and 90°N –60°S and 90°S Winds: FROM the east to west –Cold, low pressure air from the poles sinks and flows away from the pole to the equator.
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Jet Stream 10km above the Earth’s surface Bands of high speed winds –200-400km/hr Blow from west to east Wanders north and south.
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Exit Pass Where is it located, H or L pressure, direction, etc. Describe two of the Global Winds (Where is it located, H or L pressure, direction, etc.)
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