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Global Currents and Winds

Global Currents and Winds. Ocean Currents. Influenced by: Weather/Wind Positions of the continents Rotation of the Earth Sun, Salinity, Density. Surface Current. Streams of ocean water moving at the surface Can stretch for hundreds of miles

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Global Currents and Winds

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  1. Global Currents and Winds

  2. Ocean Currents • Influenced by: • Weather/Wind • Positions of the continents • Rotation of the Earth • Sun, Salinity, Density

  3. Surface Current Streams of ocean water moving at the surface Can stretch for hundreds of miles Controlled by winds, Coriolis Effect and land masses

  4. Deep Currents • Controlled by temperature and density of water • More when cold and higher salinity (amount of salt in the water) • Flow deep, under the surface currents

  5. Global Winds • Caused by uneven heating of the Earth by the Sun • Wind patterns cause friction against the water which pushes it

  6. Continental Deflection • Currents can change direction when they meet the continents

  7. Upwelling Land masses force deeper current upward

  8. Coriolis Effect • Earth’s rotation causes winds and currents to move in curved paths instead of straight lines

  9. Currents and Climate • Warm currents create warmer climates in coastal areas • Cold currents create cooler climates in coastal areas

  10. Currents and Climate

  11. What areas may be warmerdue to ocean currents?

  12. What areas may be coolerdue to ocean currents?

  13. Gulf Stream Warm surface current in Atlantic Ocean Flows from Florida area to Northern Europe

  14. Jet Stream • High altitude winds that can steer weather systems • Do not follow regular paths around the Earth

  15. Rubber Duck article

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