lecture 4 atmosphere slides

lecture 4 atmosphere slides - Atmospheric Profile...

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1 Atmospheric Profile Atmosphere extends to 32,000 km (20,000mi) from surface Three criteria to examine atmosphere Composition Temperature Function Profile of atmosphere Figure 3.2 Air pressure measured as a function of how high the mercury rises in a tube - (barometric pressure) Atmospheric Pressure Air pressure declines as one moves away from the earth’s surface Atmospheric Composition Heterosphere – outer atmosphere 80 km (50 mi) outwards Layers of gasses sorted by gravity based on their atomic weight Homosphere – inner atmosphere Surface to 80 km (50 mi) Gasses evenly blended
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2 99.96% of atmosphere Atmospheric Temperature Thermosphere (Roughly same area as the heterosphere) temperatures rise to ~1200 o C (2200 o F) however very low density of molecules 80 km (50 mi) outwards Mesosphere Temperatures average -90 o C (-130 o F) 50 to 80 km (30 to 50 mi) top is Mesopause Stratosphere Temperatures range 0 o C to -57 o C (32 o F to -70 o F) 18 to 50 km (11 to 31 mi) top is the Stratopause
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This note was uploaded on 04/25/2008 for the course GEOG 121 taught by Professor Long during the Spring '08 term at Wisc Oshkosh.

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lecture 4 atmosphere slides - Atmospheric Profile...

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