1. TOPIC: Waves and Tides Notes EQ: What are the differences/causes of ocean waves & tides? pg.52-53

2. Wave Characteristics
Most ocean waves derive their energy from the wind
Wave height: the vertical distance between trough and peak
Wavelength: horizontal distance between two successive troughs or peaks

3. Length of time wind is blowing
The size of the wave depends on 3 factors:
Wind speed
Length of time wind is blowing
The distance the wind has traveled across open water.

4. Tides The regular changes in the water level of the ocean surface
Tides form from the gravitational attraction of the moon.

5. Sketch this picture in your notes

6. Tidal Patterns
Diurnal: a single high tide and a single low tide each tidal day
Semidiurnal: two high tides and two low tides each tidal day

7. Summary