Lecture 3-20 sec3

Lecture 3-20 sec3 - Lecture 3-20 Air Masses Weather...

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Lecture 3-20 Air Masses/ Weather Patterns Fronts (ch. 8) Intro to Air Masses – modified by underlying surface winds Air mass – a “mass” of air??? Characterized by homogeneous physical properties (temp/ humidity) North American air masses o A or cA / Continental Arctic not that often in Texas only when Temp is in teens Originates over ice Both cold and dry because the colder the air the less moisture o cP/ Continental Polar Temps normally stay above 0 degrees originates over land have all the time in Texas during winter In early winter, cP correlated to lake effect snow in snow belt region o mP/Maritime Polar o mT/Maritime Tropical Texas mostly dominated by this air mass lots of heating and moisture contributes moisture energy latent heat energy to atmosphere o cT/Continental Tropical smallest source region in North America Northern Mexico/ SW U.S. (landlocked areas)
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This note was uploaded on 03/20/2008 for the course GRG 301K taught by Professor Kimmel during the Spring '08 term at University of Texas.

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Lecture 3-20 sec3 - Lecture 3-20 Air Masses Weather...

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