ES Chapter 17 Air Pollution with pictures

ES Chapter 17 Air Pollution with pictures - Chapter 17:...

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Chapter 17: Atmospheric Science and Air Pollution www.aw-bc.com/Withgott
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Atmosphere surrounds earth mostly of N 2 , O 2 , Ar today's altering molecules consist of CH 4 , O 3 , CO 2 made up of layers ozone layer www.aw-bc.com/Withgott
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Other Atmospheric Properties atmospheric pressure force per unit of area that air exerts on the surface of Earth declines with altitude atmospheric humidity ratio of water vapor contained in a given volume of air in relation to it's maximum amount possible the more humidity the hotter it seems
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Seasons determined by the positioning in relation to the sun atmosphere absorbs 70% of the energy the shorter the distance, the more intense the sun rays solar radiation intensity is lower at the poles and higher at the equator tilting of the planet causes the seasons to occur www.aw-bc.com/Withgott
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Air Circulation known as convective circulation caused by differences in humidity and temperature warm air rises as it is less dense cold air descends becoming denser www.aw-bc.com/Withgott
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Weather specifies atmospheric conditions over short periods of time and related to relatively small areas Climate describes patterns of atmospheric conditions across large regions and over long periods of time
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Weather depends on the fronts cold→ thunderstorms warm→ light rain affected by the pressure systems high→ fair to dry weather low→ results in clouds and precipitation www.aw-bc.com/Withgott
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Thermal Inversion cooler air appears under warmer air prevents normal convective circulation to occur pollution is trapped under the inversion layer creating health problems like asthma killer smog in London asthma in San Joaquin valley
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Global Climate Patterns Hadley cells: between equator and 30º heavy rain at the equator arid at 30º www.aw-bc.com/Withgott
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Global Climate Patterns Ferrer cells and polar cells lift air creating rain at ~60º www.aw-bc.com/Withgott
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Wind Patterns caused by the interaction of Hadley and Ferrer cells and Earth's rotation Coriolis effect : winds are curved www.aw-bc.com/Withgott
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Outdoor Air Pollution air pollutants natural sources human made sources
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This note was uploaded on 01/06/2012 for the course ECO 1305.8501 taught by Professor Dianagomez during the Fall '11 term at Collins.

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ES Chapter 17 Air Pollution with pictures - Chapter 17:...

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