Ch. 22 Ocean Currents. Ocean Currents. Movements of the ocean’s waters in giant “streams” 2 Major Currents : Surface Currents Deep Currents. Surface Currents. Move on or near the surface Driven by winds Factors affecting Surface Currents: Wind Belts Rotational Effects
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2 Major Currents:
Factors affecting Surface Currents:
by density differences
Wave period: time it takes for one complete wavelength to pass a given point
Wave Speed = wavelength
If there were no wind, what would happen to the waves????
So no wind = no wave energy
Add wind = more wave energy
Three Factors that affect wave size:
What causes tides???
The gravitional interactions between the Earth and the Moon!!!