Forces Driving Ocean Currents and Water Movement Explained

Explore the forces behind water movement across the globe, including the impact of wind on surface currents and the role of temperature and density in driving deep ocean currents. Discover how cold, dense water sinks while warm, less dense water rises, influencing the circulation of water in our oceans.

• Ocean Currents
• Water Movement
• Wind
• Temperature
• Density

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Uploaded on Sep 11, 2024 | 0 Views

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1. What forces move water around the globe? globe_west_2048.jpg

2. Wind

3. Wind Wind blows across the surface of the ocean How far down in the water does the wind have an effect? LET S SEE .

4. Wind? What forces move the water below the surface?

5. Currents What are currents? What drives the currents? Let s see with the fish tank demo.

6. Currents Temperature Cold water ?

7. Currents Temperature Cold water sinks

8. Currents Temperature Cold water sinks Warm water ?

9. Currents Temperature Cold water sinks Warm water rises

10. Currents Temperature Cold water sinks Warm water rises WHY?

11. Currents Temperature Cold water sinks Warm water rises DENSITY

12. Density d=m/v Cold water is dense: the molecules move slowly, and are packed close together. So a set number of molecules take up less space. Cold water sinks. Warm water is less dense: the molecules move around more and a set number of molecules take up more space. Warm water rises.

13. Currents What drives the currents?

14. Currents What else drives the currents? Let s try another demo.

15. Currents What drives the currents?

16. Currents Salinity Saltier water sinks Fresher water rises

17. Currents Salinity Saltier water sinks Fresher water rises DENSITY

18. Can ice drive currents?

19. Thermohaline Circulation

20. Thermohaline Circulation

21. Reflection What did you think about this as a content learning experience?