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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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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.”
Watch This! • DEMO: • Coriolis effect on a whiteboard!
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
Coriolis Effect Animation • Coriolis Effect Animation
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
Warm, less dense air rising Warm air creates low pressure area Cold, dense air sinking Cold air creates high pressure area
CoriolisEffect on Winds • Coriolis Effect Animation II
At end of lesson: • Complete the exit ticket. • If there is time left, begin H.W.