1. Wind & Ocean Currents http://www.youtube.com/watch?v=qh011eAYjAA

2. How does wind happen?

3. What do you notice about the flow of the currents in the Northern and Southern Hemispheres? Wind Currents

4. Earth’s Rotation  Earth rotates in a counterclockwise direction, and has an effect on both wind, and ocean currents.

5. Wind Currents Which way does the wind flow over the Earth? *Clockwise in Northern Hemisphere *Counterclockwise in Southern hemisphere http://www.youtube.com/watch?v=lkNyVyAybCQ http://www.youtube.com/watch?v=IWjeHtdpFjE

6. Coriolis Effect  The direction wind/water flows in relation to the Equator  Wind currents affect climate  Dominant air currents that affect climate are known as prevailing winds  Prevailing winds are winds that blow in one direction more often than from other directions  Prevailing winds bring air from one type of climate to another.  The air moves east at the equator and circular at the poles  https://www.youtube.com/watch?v=i2mec3vgeaI https://www.youtube.com/watch?v=i2mec3vgeaI http://www.you tube.com/watch ?v=aeY9tY9vKgs

7. Ocean Currents A fast-moving river-like flow of water in the ocean created by the Earth’s rotation http://www.youtube.com/watch?v=w_8mw-1HYFg

8. Warm currents (red) and cold currents (blue) Ocean Currents

10. East Australian Current  Moves warm water from the tropical Coral Sea where it splits from the South Equatorial Current down the east coast of Australia  The powerful flow of the East Australian Current is like an undersea highway  Many creatures can be found commuting in this current, including the Sea turtles  It is the largest ocean current close to the shores of Australia  It can reach speeds of up to five knots (5.75 mph) in some of the shallower waters along the Australian continental shelf https://www.youtube.com/watch?v=J_7c2y04FtA

11. Warm Current and Cold Currents Agulhas CurrentIndianWarm Alaska CurrentNorth PacificWarm Benguela CurrentSouth AtlanticWarm/Cool Brazil CurrentSouth AtlanticWarm California CurrentNorth PacificCool Canaries CurrentNorth AtlanticCool East Australian Current South PacificWarm Equitorial CurrentPacificWarm Gulf StreamNorth AtlanticWarm Humboldt (Peru) Current South PacificCool Kuroshio (Japan) Current North PacificWarm Labrador CurrentNorth AtlanticCool North Atlantic Drift North AtlanticWarm North Pacific DriftNorth PacificWarm Oyashio (Kamchatka) Current North PacificCool West Australian Current IndianCool West Wind DriftSouth PacificCool Why do you think the U.S. Atlantic coast is warmer than the U.S. Pacific coast?

12. Warm Currents  The Gulf Stream is a warm current that originates in the Gulf of Mexico and moves north toward Europe  The sea surface temperatures are warm, which keeps places like Europe warmer than other areas at similar latitudes  Warm ocean currents attacking the underside of ice shelves are the dominant cause of recent ice loss from Antarctica http://www.youtube.com/watch?v=08sDlxhNEHQ

13. Cold Currents  Cold water currents carry cold water away from the North Pole and the South Pole.  Most of east coast is affected by warm water currents  Most of west coast is affected by cold water currents http://www.youtube.com/watch?v=HgoANl_97kM

14. Currents Affect Weather  Ocean currents act much like a conveyer belt  They transport warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics.  Without currents, temperatures would be different than they are

15. Ticket out the Door  Answer the following questions on a ½ sheet of paper, and hand it to Mrs. Bishop as you leave at the END of class. 1. Which direction does the Earth rotate? 2. What two types of ocean currents are there? 3. Describe the Coriolis effect. Make sure you put your name on it!