Chap3 - Chapter 3: Introduction to the Atmosphere McKnights...

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Chapter 3: Introduction to the Atmosphere Image courtesy of cimss.ssec.wisc.edu McKnight’s Physical Geography : A Landscape Appreciation, Tenth Edition, Hess
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Introduction to the Atmosphere Size of Earth’s Atmosphere Composition of the Atmosphere Vertical Structure of the Atmosphere Human-Induced Atmospheric Change Depletion of the Ozone Layer Weather and Climate 2
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Size of Earth’s Atmosphere Atmosphere uniformly surrounds Earth Held down by Earth’s gravity Extends up to 10,000 km from the surface More than 50% of the total mass is below 6 km 3 Figure 3-2
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Composition of the Atmosphere Two primary gas types Permanent Oxygen and Nitrogen Variable Water Vapor Carbon Dioxide Ozone Permanent gases make up over 95% of total atmosphere 4
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Composition of the Atmosphere Particulates Non-gaseous particles which exist in the atmosphere Many human-induced and natural types Many are hygroscopic Some reflect or absorb sunlight 5 Figure 3-4
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This note was uploaded on 01/28/2011 for the course GEOG 110 taught by Professor Konrad during the Spring '08 term at UNC.

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Chap3 - Chapter 3: Introduction to the Atmosphere McKnights...

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