Chapter 6

Chapter 6 - Chapter 6: Atmospheric and Oceanic Circulations...

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Chapter 6: Atmospheric and Oceanic Circulations I. Wind Essentials I.a. Atmosphere is dominant medium of redistributing energy from about 35° latitude to the poles in each hemisphere I.a. Ocean currents redistribute more heat near equator and between 17th parallels in each hemisphere I.a. 3 Levels of Atmospheric Circulation I.a.i. Primary Circulation: general worldwide circulation I.a.i. Secondary Circulation: migratory high-pressure and low-pressure systems I.a.i. Tertiary Circulation :local winds, temporal weather patterns I.a. Meridional Flows : winds that move principally north or south along meridians of longitude I.a. Zonal Flows : winds that move east or west along parallels of latitude I.a. Air Pressure and Its Measurement I.a.i. Air Pressure : key to understanding wind; created by molecules that make up the air and their motion, size, and number (determines temperature and density) I.a.i. Evangelista Torricelli (Galileo's pupil) determined air pressure changed with weather by observing a water pump; developed the mercury
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Chapter 6 - Chapter 6: Atmospheric and Oceanic Circulations...

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