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PHY 118 final study guide -chapter 7

PHY 118 final study guide -chapter 7 - PHY 118 Final Study...

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PHY 118 Final Study Guide: Chapter 7 I. Scale of Wind Patterns: a. Macroscale Winds: i. Planetary-scale circulation of airflow ii. Ex: trade winds and hurricanes iii. Flow around entire globe and can remain unchanged for weeks at a time iv. Weather producers v. Synoptic: Smaller Macroscale winds that include mid-latitude cyclones, anticyclones, and hurricanes b. Mesoscale Winds: i. Thunderstorms and tornados ii. Last for several minutes to a couple hours iii. Often occur as a product of Macroscale winds iv. Land + sea breezes c. Microscale Winds: i. Chaotic winds that last for a few seconds II. Chinook (Foehn) Winds: a. Warm, dry winds that flow down the E. slops of the Rocky Mt.s and the alps b. Created when a strong P-G develops in mountainous regions; as air ascends Mt. it is adiabatically heated by compression; condensation occurred as the air ascended the windward side, releasing latent heat, causing the leeward side winds to be warmer and drier than before c. Usually occur in winter and spring when the areas have sub-freezing level temperatures d. Takes moisture from the snow that would have melted and provided fertile farmlands III.Hadley Cell (Single-Cell Circulation Model) WRONG PREDICTION a. Intensely heated air from the equator rises until it reaches the Tropopause where it begins to diverge toward the poles b.
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