Geography Chapter 7

Geography Chapter 7 - Chapter 7 Notes Atmospheric...

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Chapter 7 Notes Atmospheric Disturbances Air Masses - Large, uniform (horizontally), moves - Distinct from one another - Compose the troposphere - Characteristics: o 1. Large (vertically and horizontally) o 2. Uniform properties (horizontally) Temperature, humidity, and stability o 3. Distinct from surrounding air - Origin: o Source Regions: Extensive Physically uniform (land or water) Associated with air that is stationary or anticyclonic - Classification: o One or two letter code - Movement and Modification: o Some air masses remain indefinitely o Movement prompts structural change: Thermal modification Heating or cooling Dynamic modification Uplift, subsidence, convergence, turbulence Moisture modification Addition or subtraction of moisture - North American Air Masses: o Physical geography plays a role in interaction of air masses: No east-west mountain ranges North-south mountain ranges in the west Fronts - Zone of discontinuity between unlike air masses
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This note was uploaded on 11/23/2011 for the course GEOG 1114 taught by Professor ? during the Fall '08 term at Oklahoma State.

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Geography Chapter 7 - Chapter 7 Notes Atmospheric...

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