UH GEOL 1350 - Review (3 pages)

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Lecture number:
Lecture Note
University of Houston
Geol 1350 - Introduction to Meteorology

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Geology 1350 Lecture 23 Outline of Last Lecture I Light color and atmospheric optics Outline of Current Lecture I Review Current Lecture 1 Chemical composition of the atmosphere abundant species nitrogen 78 and o2 oxygen 21 no2 nitrogen boring compound are not that reactive unless there are molecules they are stable species that react fast can be removed fast another species carbon dioxide and water vapor most important efficient natural greenhouse effect greenhouse gas and is more abundant 024 can go up to 4 low values of water vapor over the poles because its colder and holds less water warm air holds more water vapor water is exponential co2 most prominent greenhouse gas and abundance in atmo is 4 everywhere other gases ch4 methane o3 ozone n2o NO comes from lightning produces NO everything that warms up expands screaming of the lighting is thunder sonic sound waves natural NO is lightning the other type comes from inside of cars 2 Vertical profile of temp and pressure and the reasons for this vertical profile of pressure decreases as it goes up all the time and decreases exponentially half of atmos pressure at 5 5 we half 500 mb of pressure define layers of atmo with temp and decreases with altitude sometimes closest layer troposphere temp decreases the top of it is tropopause 10km after that it increases because the ozone absorbs radiation which is the stratosphere going up temp decreases because there are less molecules it s the mesosphere then going up it increases again oxygen and nitrogen bonds break up and it s the thermosphere molecules are flying around and are flying fast also radiation is strong change of temp with altitude because highest pressure is close to surface going up pressure decreases then it will face less ambient pressure and it expands and faces photolesis that splits nitrogen and oxygen and produces heat 3 Layers of the atmo as defined by temp and the reasons for this These notes represent a detailed interpretation of the professor s

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