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21 Cards in this Set
- Front
- Back
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Low pressure areas
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when air is warmed, it expands, becomes lighter and rises; areas tend to be unstable
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High pressure areas
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when air is cooling is dense and heavy and tends to sink; stable areas
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Low Latitude
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0 degrees to 30 d. N and S
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Middle Latitudes
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30 to 60 degrees N and S
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High Latitudes
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60 degrees to 90 (poles) N and S
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Trade Winds
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winds in low latitudes that blow from the east
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Doldrums
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area between trade winds and equatorial zone w/ no strong winds; 5 degrees N and S latitudes
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Westerlies
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winds in mid. lats. that come from the west
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Polar Easterlies
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winds in high lat. that bring cold air into mid lat. (Artic or Antartic)
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Front
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when two types of air meets
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Ocean currents
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giant rivers of sea water flowing at surface of ocean
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Humidity
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measure of the amount of water vapor in the air
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Hurricane
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large, severe tropical storms that form over warm ocean water
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Elevation
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height of the land above mean sea level; effects climate
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Orographic effect
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Moist air from the ocean meets mtn. barrier and is forced up, forced to give up moisture in form of rain or snow
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Monsoon
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change of winds that bring both wet and dry seasons
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Climate
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weather conditons in an area over a long period of time
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Ocean currents
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giant rivers of sea water flowing at surface of ocean
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Tornado
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small twister storms that destroy almost anything in their path; smallest but most violent storm
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Elevation
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height of the land above mean sea level; effects climate
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Thunderstorms
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any storm w/ lightning and thunder; most common form of storm
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