Atmosphere II

Atmosphere II - Earth Science Title Chapter Environmental...

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Title Chapter • Environmental Lapse Rate • 3.6 degree Fahrenheit per 1000 ft • As you go up the air get cooler, thinner, and drier Barometric Pressure • How does this force fluctuate from one day to the next via pull of gravity? (barometric pressure) • If you heat the air, it expands the airmass and becomes less dense and lowers the barometric pressure… causes things to lift • Mercurial Barometer • First thing invented for this was a mercurial barometer, however it is quite dangerous because it contains mercury. • Standard sea level pressure- 14.7 pounds per square inch (29.92 inches on a mercurial barometer) • Milibar (mb) is the scientific reading…. 29.92in = 1013.2mb 1”= 33.86 mb • Alternative to a mercurial barometer is an anroidial barometer (not as accurate tho) • More about Barometric Pressure • Earth’s record low- 870mb in the western pacific 1979…. U.S. Record low- 882mb during Hurricane Wilma in 2005…. Canadian record low- 940.2mb in St. Anthony, new Foundland 1977…. U.S. Record high- 1065mb 1970 in Barrow AK… Canadian record high is 1079.6mb in Dawson YT 1989… Earth’s record high- 1084mb in Agata,
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This note was uploaded on 08/18/2008 for the course GEOG 1710 taught by Professor Byers during the Spring '08 term at North Texas.

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Atmosphere II - Earth Science Title Chapter Environmental...

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