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Teachers' Domain - Digital Media for the Classroom and Professional Development Search Teachers' Domain Go User: My Folders Loading... Create a new folder Upload Media My Groups No groups created yet. Create a new Group Join a Group My Profile HELP | SIGN OUT Please sign in for full access This Teachers' Domain feature requires registration, which is simple, safe, and free. Register Now Citation "Ocean Temperatures and Climate Patterns." Teachers' Domain. 17 Dec. 2005. Web. 3 Feb. 2012. .

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Signing in now will connect your and Teachers' Domain accounts, so that in the future you will automatically be signed into Teachers' Domain when you come from . Ocean Temperatures and Climate Patterns Resource for Grades 6-12 | Citation Media Type: Video Running Time: 2m 17s Size: 6.8 MB View or Download SAVE TO FOLDER Loading... Save Cancel Share | Source: The New Media Studio. Resource Produced by: Collection Developed by: Collection Credits Collection Funded by: Related Resources: Great Ocean Conveyor Belt: Part I (Image) Great Ocean Conveyor Belt: Part II (Audio) Shipwrecks Reveal Ocean Currents (Video) What Causes the Gulf Stream? (Video)   See Also: National K -12 Subject: Air-Sea Interactions Climate Energy in the Earth System Energy Transfer Ocean Characteristics Interactions between Earth's atmosphere and oceans drive weather and climate patterns. Although these interactions and patterns are complex, they are also predictable. This animation from The New Media Studio explains precipitation patterns by illustrating how differences in ocean surface temperatures create wind, and how wind patterns can in turn affect ocean surface temperatures. Permitted use: Download, Share, and Remix Accessibility Features: Caption Background Essay The Sun's energy is distributed unevenly across Earth's surface. Areas near our planet's equator absorb far more heat energy than areas near the poles. This uneven distribution of heat creates instability in Earth's atmosphere and oceans, and instability leads to movement of air and water. Air in the atmosphere is warmed by heat radiating from Earth's surface. The warmer the surface is, the warmer the air above it becomes. Because warm air is less dense than cold air, it tends to expand and rise, which lowers air pressure near the surface. Thus, regions of low air pressure generally form over warm water and land, while high-pressure regions form over cool surfaces. Such pressure differences create circular patterns of air called convection currents. In a convection current, warmer, low-pressure air rises and cooler, high-pressure air rushes in to fill the void. As the warm air rises, it loses heat in the upper atmosphere, cools, and sinks back toward Earth's surface, completing the circuit. The movement of air from high to low pressure in convection currents is responsible for most winds that blow across Earth's surface. The northern and southern hemispheres each have three zones in which winds blow predictably from east to west or west to east. On either side of the equator are zones dominated by the northeast and southeast trade winds, which blow strongly from east to west, and drive ocean currents in the same direction. The constant blowing of these strong winds pushes the warm surface water westward and causes a swell of warm water to build up in the western Pacific. In most years, the height of the sea surface near Indonesia is about 0.5 meters (1.6 feet) higher than off the coast of Ecuador, and the water temperature is warmer by about 8 degrees Celsius (14 degrees Fahrenheit). On the east side of the ocean, cold water rises up from great depths to replace the water that was pushed westward. The interaction between global surface winds and ocean currents creates predictable climate patterns. For example, the heat carried westward by the warm ocean current causes powerful thunderstorms in northeastern Australia and eastern Indonesia. In contrast, the cold ocean surface on the east side of the Pacific gives rise to high pressure areas and low precipitation for much of the west coast of South America. About every three to four years, climate patterns in and around the Pacific Ocean change dramatically. The trade winds slacken and warm water that had been pushed to the west side of the Pacific is allowed to return eastward. This pattern, known as El Niño, typically causes droughts in Australia and Indonesia and damaging thunderstorms and floods in parts of South America and southern North America. Print Background Essay Discussion Questions How does ocean temperature affect local atmospheric pressure? Pick one example of an interaction of two systems described in this animation that explains the movement of air. Use this example to describe a weather pattern. Use information from this interactive resource to describe why cloud types vary in different regions of the Pacific Ocean. 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