Warm Up

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Warm Up

• Imagine that you are on a voyage sailing around
  the world. Two weeks into your trip your motor
  quit on your boat. How are you going to complete
  your voyage?

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The Movement of Ocean Water

• S6E3.d Explain the causes of waves, currents,
  and tides.

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Term Vocabulary Definition Where is It? Cause? Effect?
Ocean Currents A streamlike movement of water that follows a regular pattern. Surface or deep in the ocean. Influenced by Weather Earths rotation Position of the Continents People are able to predict where objects in the open ocean will be carried.
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Term Vocabulary Definition Where is it? Cause? Effect?
Surface Currents A horizontal movement of water that is caused by wind and occurs at or near the oceans surface. From the surface to depths of several hundred meters and lengths of several thousand kilometers. Global winds, the Coriolis effect, and continental deflections. Keeps the currents flowing in distinct patterns around the Earth.
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Terms Vocabulary Definition Where is it? Cause? Effect?
Global Winds Major winds that produce patterns of air circulation in different directions. All over the Earth. Moves in different direction at each 30 latitude. Coriolis effect and latitude Winds form surface currents in the ocean flowing in different directions.
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Term Vocabulary Definition Where is it? Cause? Effect?
Coriolis Effect The apparent curving of the path of a moving object from an otherwise straight path due to the Earths rotation. Occurs in the Northern and Southern Hemispheres. The rotation of the Earth. Surface currents in the Northern Hemisphere turn clockwise, and surface currents in the Southern Hemisphere turn counterclockwise.
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Term Vocabulary Definition Where is it? Cause? Effect?
Continental Deflection Changing directions of currents when they meet a continent. Wherever land and water meet. Land mass Change or deflection of a current
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Term Vocabulary Definition Where is it? Cause? Effect?
Deep Currents Streamlike movements of ocean water located far below the surface. Form in the deep parts of the ocean where density increases. Deepest Currents Antarctic Bottom Water North Atlantic Deep Water Density a decrease in the temperature and an increase in the salinity through freezing and evaporationof water. Variations in the movement of deep currents
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Term Vocabulary Definition Where is it? Cause? Effect?
Warm Water Currents A surface current made up of warm water. Develops near the equator Suns energy heating up the water due to direct light. Carries warm water to other parts of the ocean.
Cold Water Currents A surface current made up of cold water. Develops near the poles. Coldness of the ocean water due to the lack of suns energy. Carries cold water to other parts of the ocean.
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Summarize

• Explain surface Currents
• Explain deep currents
• List three factors that control surface currents.
• How does a continent affect movement of a surface
  current?
• Explain how temperature and salinity affect the
  formation of deep currents.