MET4300_SWX_LEC2

MET4300_SWX_LEC2 - MET 4300 Lecture 2 Properties of the...

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MET 4300 Lecture 2 Properties of the Atmosphere 11 January 2012
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Atmospheric Properties Temperature ( o C or o F) Pressure (mb or hPa) Moisture Variables (% or hPa or dimensionless) Clouds (Type and dimensions) Hydrometeors (Rain, drizzle, hail, graupel …) Wind (m s -1 ) Related to pressure in different ways for different scales
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Temperature Temperature is a measure of the average speed of molecules move in a substance. Solid, Liquid, Gas Units: Celsius ( o C), Fahrenheit ( o F), Kelvin (K) Absolute zero: no more energy can be extracted (-213.15 o C)
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Temperature Scales
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Layers of Atmosphere Troposphere: 0-12 km above surface, T decreases Stratosphere: 20-50 km, T increases (Ozone effect) Mesosphere: 50-85 km, T decreases Thermosphere: >85 km, T increases again
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Worldwide Temperatures in January
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Worldwide Temperatures in July
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How the Earth’s Orbit Affects Temperature
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MET4300_SWX_LEC2 - MET 4300 Lecture 2 Properties of the...

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