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Global Wind Patterns and Coriolis Effect Explained

Explore the global wind patterns and learn about the Coriolis effect and its relationship with these patterns. Engage in activities, demos, and discussions to understand the concepts better.

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Global Wind Patterns and Coriolis Effect Explained

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  1. Objective:Describe the global wind patterns & explain the relationship between the Coriolis effect and global wind patterns • DO NOW • Update T.O.C. • Take out H.W. (Markup of land/sea & mtn/valley breezes sheets) • Update Agenda: HW: Complete the global and local winds worksheet. • In your notes, add heading: “Wind patterns” Respond to the following: • Imagine you’re near an ocean in the daytime. You want to go swimming but don’t know how get there. How might a local wind help you find the ocean? • Review notes on “Local Winds.”

  2. Watch This! • DEMO: • Coriolis effect on a whiteboard!

  3. TheCoriolis effect is the apparent curving of the path of a moving object from an otherwise straight path due to the Earth’s rotation. Coriolis Effect Animation

  4. Coriolis Effect Animation • Coriolis Effect Animation

  5. Global Winds • Global winds are caused by a combination of the convection cells and the Coriolis effect. • Flow primarily from 1 direction over long distances • High to Low pressure • Not influenced by local geographic features to determine direction • The 3 major global wind systems include: • Polar Easterlies • Prevailing Westerlies • Trade Winds • The Horse Latitudes • The Doldrums

  6. Warm, less dense air rising Warm air creates low pressure area Cold, dense air sinking Cold air creates high pressure area

  7. The Earth spins this way

  8. CoriolisEffect on Winds • Coriolis Effect Animation II

  9. At end of lesson: • Complete the exit ticket. • If there is time left, begin H.W.

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