CU-Boulder ATOC 1050 - ATOCclassnotes1 (49 pages)

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ATOCclassnotes1



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ATOCclassnotes1

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Pages:
49
School:
University of Colorado at Boulder
Course:
Atoc 1050 - Weather and the Atmosphere
Weather and the Atmosphere Documents

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EXAM ONE CH 1 2 3 4 10 16 2012 Moisture and Wind Q Is the change over the annual cycle in the Northern Hemisphere larger or smaller then the annual cycle in the Southern Hemisphere A Northern because there is more land mass which absorbs more heat quickly Properties of the Atmosphere Temperature Pressure Moisture Wind Atmosphere is a thin layer of air extending from the surface to 100 km 90 of mass is below 12km Weather occurs 2 5k 78 nitrogen 21 oxygen 00001 water vapor Temperature the average speed of molecules When object of different temperature come into contact the object with more heat shares with object of lesser heat 2nd law of thermodynamics Absolute zero no molecule movement 459 67 degrees F 273 15 degrees C If the temperature on the Fahrenheit scale is 100 degrees then the corresponding temperature on the Celsius scale is greater than 100 degrees FALSE How does moisture exist in the atmosphere Solid ice crystals Liquid cloud droplets fog rain Gas water vapor In clouds it exists as Liquid water Ice crystals Seasons Why does the temperature change during the year and why is this change larger in middle and high latitudes than in the tropics How does the tilt of the earth cause seasons Length of daylight Amount of sunlight able to pass through the atmosphere Area illuminated by the sun Air Pressure the force applied by air to a unit area of surface P force area The air pressure at a given point is equal to the weight of all of the air above that point Pressure decreases with altitude 870 typical pressure in Boulder Pressure at sea level in different units 10 tons per square meter 14 7 psi pounds per square inch 29 92 inches of mercury 760 millimeters of mercury meteorologists use 1013 25 millibars or hPa Station pressure the air pressure measured at a surface weather station this is also called surface pressure Mean sea level pressure the pressure that would be measured if the weather station were located at sea level SUMMARY Why does temperature change



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