2_-_Atmospheric_composition_structure_template

2_-_Atmospheric_composition_structure_template - Todays...

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Today’s Entertainment Announcements: Changes to Course schedule? Our new friend, Ike What questions do you have? Today: Composition and structure of the atmosphere
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Introduction Meteorology Study of atmosphere & processes that cause what we call “weather” Climatology “Average” weather in a particular place/region over some period of time. Example “Louisiana is very hot in the summer” would be a climatological statement.
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The Thickness of the Atmosphere An impressive sum of mass (5.14 x 10^15 kg) Density decreases rapidly with height Majority of mass contained in thin layer near surface Why? Gravity is pulling the atmospheric contents Where is “top” of atmosphere? 62 miles Figure 3.2b
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Composition of the Atmosphere Mixture of gases, microscopic suspended particles, liquid/solid water. Stable (dont change) and variable (do change) components Carbon Dioxide, Methane, Ozone are very important Water vapor (H 2 O) Near 0 – 4% or more Table 3.2
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Water Vapor Added or removed from atmosphere through hydrologic cycle
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This note was uploaded on 10/17/2008 for the course GEOG 2050 taught by Professor Brown during the Fall '07 term at LSU.

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2_-_Atmospheric_composition_structure_template - Todays...

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