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Do Now – In Binders

Do Now – In Binders. Describe how wind is created. What is the relationship between density and pressure? What happens to air pressure as I hike up a mountain? What instrument measures air pressure?. Global Winds. What roles do composition, structure, and properties play in our atmosphere?.

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Do Now – In Binders

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  1. Do Now – In Binders • Describe how wind is created. • What is the relationship between density and pressure? • What happens to air pressure as I hike up a mountain? • What instrument measures air pressure?

  2. Global Winds What roles do composition, structure, and properties play in our atmosphere?

  3. Coriolis Effect • Because the Earth rotates, and consists of a mixture of land and sea, the Coriolis Effect exists • The Coriolis Effect is the movement of particles (such as air) to the right in the Northern Hemisphere • How about the South? • They move to the left

  4. Coriolis Effect

  5. Global Winds • Global wind patterns are caused by: • Coriolis Effect • The land and sea makeup of Earth

  6. 90 Warm Moist Air Rises 60 30 0 30 60

  7. 90 Cool Dry Air Sinks Warm Moist Air Rises Cool Dry Air Sinks 60 30 0 30 60

  8. 90 Cool Dry Air Sinks Warm Moist Air Rises Cool Dry Air Sinks 60 30 0 30 60 Cold Moist Air Rises Cold Moist Air Rises

  9. 90 Cool Dry Air Sinks Warm Moist Air Rises Cool Dry Air Sinks 60 30 0 30 60 Very Cold Air Sinks Cold Moist Air Rises Cold Moist Air Rises Very Cold Air Sinks

  10. H L 90 H Cool Dry Air Sinks Warm Moist Air Rises L Cool Dry Air Sinks 60 H L H 30 0 30 60 Very Cold Air Sinks Cold Moist Air Rises Cold Moist Air Rises Very Cold Air Sinks

  11. H L 90 H L 60 H L H 30 0 30 60 Wind Moves from HIGH to LOW

  12. 90 60 30 0 30 60 Objects are deflected to the RIGHT in the Northern Hemisphere

  13. Remember! Wind gets its name from the direction it is blowing FROM!

  14. Northern Wind Patterns • Polar Easterlies • 90 – 60 latitude from the east • Prevailing Westerlies • 60 – 30 latitude from the west • Trade winds • 30 – 0 latitude from the East

  15. Latitude Nicknames • Horse Latitudes • 30 latitude • Named because the boats stalled and the horses had to go! • Doldrums / Intertropical Convergence Zone (ITCZ) • Equator • Trade winds converge from north and south • Named because boats also got stranded here

  16. Jet Streams • Jet Streams format latitudes where wind systems come together • High speed westerly winds form high above the surface

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