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Understanding Thermal Circulation in Meteorology

Explore thermal circulation phenomena like sea breeze, land breeze, monsoons, and local winds with Dr. Robert M. MacKay from Clark College. Learn how air pressure variances create weather patterns in different regions. Discover the impact of valley breezes, the Santa Ana Winds, and other atmospheric dynamics. Get insights into expertly illustrated cases like Florida's sea breeze convergence zone and the South East Asian monsoons. Unravel the mysteries of regional wind patterns and their influence on weather systems.

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Understanding Thermal Circulation in Meteorology

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  1. Thermal Circulation By Dr. Robert M MacKay Clark College Physics & Meteorology

  2. A tale of two identical cities

  3. The air above City 1 cools and that above City 2 warms

  4. Air pressure aloft is High above City 2

  5. Winds aloft blow from city 2 to city 1.

  6. Examples of Thermal Circulations

  7. Sea Breeze during the day

  8. Land Breeze at night

  9. Very dry South East Asian Monsoon

  10. Very wet South East Asian Monsoon

  11. Mountain or Valley breeze??

  12. Upward motion of Valley breeze made visible by clouds

  13. Sea breeze convergence zone in Florida giving rise to very frequent thunderstorms. Florida has more thunderstorms each year than anywhere else in the US.

  14. Stepped Art Fig. 9-25, p. 241

  15. Local Winds • Santa Anna Winds • Warm dry that blows from east or northeast don canyons into S. California • Very fast, desiccates vegetation, providing fuel for fires • Desert winds • Dust storms, sand storms, dust devil, haboob

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