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Unformatted text preview: Chapter 6 Weather and Climate (9-19-06) 6.1 Weather: A Brief Introduction Thermosphere 80 to 320 km above surface Mesosphere 50 to 80 km above surface Stratosphere 12 to 50 km above surface Troposphere surface to 12 km - air pollution here Weather short term properties of the troposphere at a particular place and time. (Most of the earths air is in troposphere.) Front the boundary between 2 air masses with different temperatures and densities. a. Warm Front boundary between an advancing warm air mass and the cooler one its replacing. B/c warm air is less dense than cold air, and advancing warm front rises over a mass of cool air b. Cold Front leading edge of an advancing mass of cold air. High Pressure Ridge area of high pressure, fair weather follows as a result Low Pressure Ridge area of low pressure stormy weather--- Sometimes we experience weather extremes such as: (1) Tornadoes which form over land (2) Tropical Cyclones form over warm ocean waters and sometimes pass over coastal lands....
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This note was uploaded on 03/26/2008 for the course ATMO 201 taught by Professor Alcorn during the Fall '06 term at Texas A&M.
- Fall '06