Final Study Guide

ATMS-100: EXAM III REVIEW SHEET
The exam will be 80 questions, multiple choice. You may use a calculator, however, CELL PHONE USE IS PROHIBITED. Please bring a #2 pencil.
Study aids: This sheet, lecture notes, textbook. Learn and be able to apply concepts; do NOT simply memorize facts. Questions? Come to office hours, ask your TA, post to the discussion board on Compass.
FROM BEFORE:
 _What is the difference between satellites and radar?
  1. Satellites: View clouds from space
      a. Radar: View precipitation from ground
 _How is wind direction defined?
  1.   Wind Direction: Direction FROM which the wind is blowing
      a. i.e. A north wind blows from the north (toward the south)
      b. Stick on weather map identifies wind direction
 _How do winds blow about high and low pressure systems in the Northern Hemisphere?
  1. Low pressure: counter-clockwise and inward (air converges and rises leading to clouds, rain)
      a. High pressure: Clockwise and outward (sinking air leads to clear skies)
 _What is pressure and how does in change with height?
  1. Pressure: Force/Area; molecules in given area
      a. it always DECREASES with height
 _What is an inversion?
  1.   Inversion: Layer in which the temperature increases with height
 _What is latent heat?
  1. Latent heat: The energy absorbed or released during a phase change
      a. “Hidden” energy
· _What is advection?
  a. Advection: Transfer of heat (or moisture) through horizontal movements of air
 _What is saturation? What mathematical relationships are true at saturation?
  1.   Saturation: an atmospheric condition where level of water vapor is the maximum possible at the existing temp and pressure; equal rates of evaporation and condensation
      a. Air is not a “sponge”- air is NOT so “full of water” that there is no room for anything else; molecules very far apart
      b. Most of an air molecule is empty space
 _What is relative humidity? How can it... [continues]

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