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Chapter 6 Atmospheric and Oceanic Circulations

Chapter 6 Atmospheric and Oceanic Circulations. Atmospheric and Oceanic Circulations. Wind Essentials   Driving Forces within the Atmosphere   Atmospheric Patterns of Motion   Oceanic Currents  . Wind Essentials. Air Pressure and Its Measurement   Mercury barometer Aneroid barometer

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Chapter 6 Atmospheric and Oceanic Circulations

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  1. Chapter 6Atmospheric and Oceanic Circulations

  2. Atmospheric and Oceanic Circulations • Wind Essentials   • Driving Forces within the Atmosphere   • Atmospheric Patterns of Motion   • Oceanic Currents  

  3. Wind Essentials • Air Pressure and Its Measurement   • Mercury barometer • Aneroid barometer • Wind: Description and Measurement   • Wind • Anemometer • Wind vane • Global Winds  

  4. Barometers Figure 6.2

  5. Air Pressure Readings Figure 6.3

  6. Wind Vane and Anemometer Figure 6.4

  7. Wind Portrait of the Pacific Ocean Figure 6.6

  8. Driving Forces within the Atmosphere   • Gravity • Pressure Gradient Force   • Coriolis Force   • Friction Force  

  9. Pressure Gradient Figure 6.7

  10. Pressure + Coriolis + Friction Figure 6.8

  11. Coriolis Force Figure 6.9

  12. Atmospheric Patterns of Motion   • Primary High-Pressure and Low-Pressure Areas   • Upper Atmospheric Circulation   • Local Winds   • Monsoonal Winds  

  13. Global Barometric Pressure Figure 6.10

  14. Global Barometric Pressure Figure 6.10

  15. Primary High-Pressure and Low-Pressure Areas • Equatorial low-pressure trough • Polar high-pressure cells • Subtropical high-pressure cells • Subpolar low-pressure cells

  16. Equatorial Low-Pressure Trough • Intertropical convergence zone (ITCZ) • Trade winds

  17. June–July ITCZ Figure 6.11

  18. Polar High-Pressure Cells • Polar easterlies • Antarctic high

  19. Subtropical High-Pressure Cells • Westerlies • Bermuda high • Azores high • Pacific high Figure 6.13

  20. Subpolar Low-Pressure Cells • Aleutian low • Icelandic low • Polar front

  21. General Atmospheric Circulation Figure 6.12

  22. General Atmospheric Circulation Figure 6.12

  23. Constant Isobaric Surface Figure 6.15

  24. Upper Atmospheric Circulation • Rossby waves • Jet stream

  25. Rossby Waves Figure 6.16

  26. Jet Streams Figure 6.17

  27. Local Winds • Land-sea breezes • Mountain-valley breezes • Katabatic winds

  28. Land-Sea Breezes Figure 6.18

  29. Mountain-Valley Breezes Figure 6.19

  30. Monsoonal Winds Figure 6.20

  31. Oceanic Currents • Surface Currents   • Deep Currents  

  32. Major Ocean Currents Figure 6.21

  33. Deep-Ocean Thermohaline Circulation Figure 6.22

  34. End of Chapter 6 Geosystems 7e An Introduction to Physical Geography

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