What are Ocean Gyres? SC.912.E.7.2 © Copyright 2015 – All rights reserved. www.cpalms.org
Ocean Surface Currents Large-scale ocean surface currents are driven by wind systems that get their energy from the Sun. Surface currents transfer heat from the tropic regions toward the poles. This transfer of heat is what drives Earth’s climate patterns. © Copyright 2015 – All rights reserved. www.cpalms.org
Kes47, Wikimedia Commons (CC BY-SA 3.0) Due to the Coriolis Effect, these currents are deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. Kes47, Wikimedia Commons (CC BY-SA 3.0) © Copyright 2015 – All rights reserved. www.cpalms.org
Ocean Gyres Ocean gyres are large systems of circular ocean currents formed by global wind patterns and the Coriolis Effect. There are five major ocean gyres, one in each major ocean basin. The circulation in these gyres is clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere. These circulation patterns carry warm water from the Equator and cold water from the poles. More information about ocean gyres can be found at: http://education.nationalgeographic.com/education/encyclopedia/ocean-gyre/?ar_a=1 © Copyright 2015 – All rights reserved. www.cpalms.org
Ocean Basin Handout Based on what you have seen so far, fill in your world map by marking the five major ocean gyres. Use colored pencils to mark the warm currents in red and the cold currents in blue. Hand out the blank ocean basin charts and have students place the ocean gyres where they think they are. When you think students are ready, move on to the next slide. You may need extra maps in case students need to make a second map. © Copyright 2015 – All rights reserved. www.cpalms.org
Ocean Currents Click on the link below to display the map: http://cimioutdoored.org/wp-content/uploads/2014/12/Map-of-ocean-gyres_full_size_landscape.jpg At this point have students correct their maps. You can also cut and paste this link into your bowser to get the map http://cimioutdoored.org/wp-content/uploads/2014/12/Map-of-ocean-gyres_full_size_landscape.jpg © Copyright 2015 – All rights reserved. www.cpalms.org