ENGL 00400SL Lecture Notes - Lecture 11: Jet Stream, The Infamous, Radiography

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24 Jun 2022
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The troposphere is the lowest layer of our atmosphere. Starting at ground level, it extends upward to about 10 km (6. 2 miles or about 33,000 feet) above sea level. We humans live in the troposphere, and nearly all weather occurs in this lowest layer. Most clouds appear here, mainly because 99% of the water vapor in the atmosphere is found in the troposphere. Air pressure drops, and temperatures get colder, as you climb higher in the troposphere. The next layer up is called the stratosphere. The stratosphere extends from the top of the troposphere to about 50 km (31 miles) above the ground. The infamous ozone layer is found within the stratosphere. Ozone molecules in this layer absorb high-energy ultraviolet (uv) light from the sun, converting the uv energy into heat. Unlike the troposphere, the stratosphere actually gets warmer the higher you go!

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