Exam 8: Air Pressure and Winds

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Station pressure and sea-level pressure can never be the same value.

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Flights from San Francisco to New York City take,on average,about 30 to 45 minutes less than the return flights.

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On a 500 millibar chart,____ are drawn to represent horizontal changes in altitude which correspond to horizontal changes in pressure.​

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If two air parcels at sea level have the same size but different temperatures,the colder parcel of air will have​

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If,at your home in the Northern Hemisphere,the surface wind is blowing from the northwest,the region of lowest pressure will be to the ____ of your home.​

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Suppose that the winds aloft are geostrophic and blowing from the north.Low pressure is located to the ____________________.

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"Barometer" literally means an instrument that measures ____________________.​

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Zonal flow wind-flow patterns are associated with​

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There is always a strong pressure gradient force directed _________.​

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The Coriolis force is the force that causes the wind to blow.

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100 pascals equals 10 millibar.

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Air moves in response to pressure differences.Because air pressure decreases rapidly with increasing height above the surface,there is always a strong pressure gradient force directed upward,much stronger than in the horizontal.Why,then,doesn't the air rush off into space?

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The atmospheric layer that is influenced by friction is called the friction layer or the ____________________ layer.

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The winds aloft in the middle latitudes of the Southern Hemisphere generally blow​

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Explain why obtaining the correct air pressure of a mercury barometer is not simple.

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Explain why strong upper-level divergence will cause the pressure in the center of a surface low to decrease.

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The pressure gradient force is directed from higher pressure toward lower pressure​

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A ridge on an upper-level isobaric chart indicates​

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In middle latitudes,surface pressure changes are primarily the result of large high- and low-pressure areas that move toward or away from a region.

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The pressure gradient force is non-existent at the equator.

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