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Unformatted text preview: Atmosphere gases, temperature, pressure: 78% nitrogen, 21% oxygen, 1%argon, 0-4% water vapor, .035% carbon dioxide Humidity=water present/max water air can hold, air can hold 1-3% humidity Sun energy on fixed Earth and spinning Earth Simple circulation in the atmosphere (2 cells)- Water evaporates on the equator and spreads toward the poles where it is cooled and rained/snowed out. The Hadley cells between 0-30 degrees latitude are subtropical highs and dry More complex circulation (6 cells, no rotation) Coriolis force/effect- Wind in northern hemisphere goes right while it goes left in southern hemisphere, Clockwise in northern hemisphere and counter clockwise in southern hemisphere As air sinks it becomes drier...
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- Fall '08