Chapter 22

2. top of a wave
4. driven by winds
6. a very weak long surface current
9. time it takes for one complete wavelength to pass a given point
11. distance that wind blows across open water
13. move very slowly beneath the surface, caused by differences in the density of water
14. bottom of a wave
16. current that form as waves approach beach from an angle
18. global winds located in middle latitudes
20. gravitational pull of the moon on the earth causes these
21. higher high tides and lower low tides, happens twice a month
22. vertical distance between crest and trough
23. most destructive ocean waves. Also called tidal waves. Caused by earthquakes

1. deflection of the earth's winds caused by the earth's rotation
3. happens at 1st and 3rd quarter phases of the moon, daily tide range is small
5. top of the wave topples to form this
7. global winds located just north and south of equator
8. water carried onto the beach and then pulled back into deeper water
10. water returning to ocean through channels in underwater sandbars, which parallel the beach
12. long current that travels from Caribbean and Gulf of Mexico north along the Eastern US and then towards Great Britain
15. huge circles of moving water, clockwise in Northern Hemisphere and counterclockwise in Southern Hemisphere
17. type of current that is strong and caused by underwater landslides
19. a group of long, rolling waves that are the same size