1. Ocean Currents and Climate Ch.14.2 Objectives
Explain how currents affect climate.
Illustrate an upwelling and when it happens.
Describe the Effects of El Nino and La Nina.

2. Something to Ponder:
Scilly Isles, England are located on the same latitude as New Foundland, Canada. Scilly has warm temps all year long while NF Canada has long winters and permafrost. Why do they have different climates?

3. Surface Currents and Climate
affects the climate in many parts of the world.
warms or cools coastal areas year-round.
**The surface currents at the equator bring WARM water!!!!
.Examples? Gulf Stream

4. Currents and Temperature
Warm
Cool

5. Cold Water Currents
Cool land near coastal areas that would otherwise be warmer

6. Currents and Temperature

7. Surface currents on shore: UPWELLING
Process where Cold, nutrient-rich water from the deep ocean rises to the surface, replacing warm surface water.
Caused by wind
blowing along the
shoreline.
Happens along the NW
coast of S.America.
Extremely important
for organisms

8. One More Time:

9. What if Upwelling does not Occur? El Niño
Every 2-12 years.
Cause: Winds blow Less warm water to Western Pacific Ocean
Effect: Surface Water temps rise along South America
Lasts a year or longer
Results: flooding rains in the southern US & Peru, droughts in Indonesia & Australia, Increase surface temps of coral reefs

10. Current Events in California: CNN

11. La Niña Cold water event in Eastern Pacific
affects weather patterns, above average rainfall.
El versus La (5 min SS Connection!)
HW: Read and Do 14.3 worksheet