AOSC200Lect16

AOSC200Lect16 - AOSC 200 Lesson 16 Clear area in middle of...

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AOSC 200 Lesson 16
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Fig. 9.2 Clear area in middle of the image is a hot, cloud-free air mass – resulting heat wave caused 200 deaths in the Midwest
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Fig. 9.3 Major air masses of the world
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AIR MASS AN AIR MASS IS A BODY OF AIR 1500 KM OR MORE ACROSS AND SEVERAL KM THICK AS THE AIR MASS MOVES IT CARRIES ITS TEMPERATURE AND MOISTURE CONDITIONS WITH IT. CAN TAKE SEVERAL DAYS FOR AN AIR MASS TO TRAVERSE AN AREA. WHERE THE AIR MASS ORIGINATES IS KNOWN AS THE SOURCE REGION
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CLASSIFICATION FOUR BASIC CATEGORIES OF AIR MASSES: POLAR - P ARCTIC - A TROPICAL - T EQUATORIAL - E TWO DESIGNATIONS OF SURFACE IN SOURCE REGION MARITIME - m . CONTINENTAL - c
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CLASSIFICATION THUS WE GET: cA - CONTINENTAL ARCTIC cP - CONTINENTAL POLAR cT - CONTINENTAL TROPICAL mT - MARITIME TROPICAL mP - MARITIME POLAR mE - MARITIME EQUATORIAL
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Fig. 9.4 Major air masses that affect North American weather
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CONTINENTAL POLAR (cP) AND CONTINENTAL ARCTIC (cA)
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This note was uploaded on 01/30/2012 for the course AOSC 200 taught by Professor Hudson during the Fall '08 term at Maryland.

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AOSC200Lect16 - AOSC 200 Lesson 16 Clear area in middle of...

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