1. Today’s Agenda…2-17
Bellringer: Explain what happens to temperature and pressure as you go deeper in the ocean.
Review this week’s topics
Notes on Oceans Currents and Climate

2. Ocean Currents and Climate
Study Pack #9

3. Today’s Goals…
I can explain how ocean currents affect weather and climate.

4. ?True or False? The ocean is always in motion.
Surface currents are caused by winds.
The gulf stream that moves north from Florida carries cold water.
In an upwelling, warm water rises quickly to the surface.

5. Ocean Currents The ocean is constantly in motion
Currents move the water from place to place
Currents exist at the surface and deeper water

6. Causes of Surface Currents
Surface currents are powered by wind
Surface currents are curved due to earth’s rotation
The gulf stream flows from Florida and curves toward the east

7. Ocean Currents
Gulf stream currents are usually warm and help to distribute heat from the equator to other areas
The climate of areas near the stream are influenced
Example: Iceland (page 382)

8. Ocean Currents
Some currents are cool and cause areas they are near to be cooler
Example: California Current (page 382)

9. Density Currents
Occur when more dense sea water sinks and moves to less dense areas
Water can become more dense by being cooler or containing more salt
As the cool water sinks, warm water rises, warming coastlines

10. Upwelling
A current in the ocean that brings deep, cold water to the ocean surface
Often occur along coasts where warm water is blown away from the land (page 384)
Cold water rises to take its place

11. ?True or False? The ocean is always in motion.
Surface currents are caused by winds.
The gulf stream that moves north from Florida carries cold water.
In an upwelling, warm water rises quickly to the surface.

12. Exit Slip
How do ocean currents affect climate?