Quiz Chapter 9:
1. List the two wind belts that drive the surface currents in the North Atlantic (for
example). (2 pts)
2. The eastern and western boundary currents are not directly wind driven, they
result from geostrophic flow around the gyres. T/F (1 pt):
3. How many gyres exist in the ocean (count). (1 pt.)
4. In the northern hemisphere, surface currents will move 30-45 to the right of
the wind direction (T/F), however the net transport of water throughout the
eckman layer (spiral) will be ____ to the right of the wind (2 pt.)
5. Provide three characteristics of western boundary currents that are different
than eastern boundary currents (3 pt.)
6. Upwelling will bring nutrient-rich water from deeper depths to the surface
often creating zones of high productivity such as the equatorial Pacific. T/F
(1 pt)
Quiz Chapter 9:
7. ENSO events are linked to the weakening or complete collapse of what wind
belt (1 pts).
8. During ENSO events upwelling is enhanced along the west coast of South
America. T/F (1 pt)
9. The rate of deep water formation in the North Pacific is slightly less than the
rate of deep water formation in the North Atlantic. (1 pt.)
10. Thermohaline Circulation (density driven) is controlled by what two
characteristics of sea water (2 pt.)
Bonus: List the five common water masses (3 pts)