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WorksheetsOceanic and Atmospheric Circulation
Total questions: 27
Worksheet time: 14mins
Name
Class
Date
1.
Thermohaline circulation is caused by
a)
density
b)
nutrients
c)
coastal upwelling
d)
equatorial upwelling
2.
Vertical circulation caused by wind moving across the water off shore is
a)
density
b)
nutrients
c)
coastal upwelling
d)
equatorial upwelling
3.
Vertical circulation caused by water and wind deflected by the coriolis effect at the equator is
a)
density
b)
nutrients
c)
coastal upwelling
d)
equatorial upwelling
4.
Upwelling is related to
a)
density
b)
nutrients
c)
coastal upwelling
d)
equatorial upwelling
5.
Horizontal currents are set in motion by
a)
45 degrees
b)
Coriolis effect
c)
wind
d)
upwelling
6.
Secondary forces such as ______ influence the direction of the flow.
a)
45 degrees
b)
Coriolis effect
c)
wind
d)
upwelling
7.
Theoretically Ekman transport causes water to move at ___________ from the wind, but in reality the difference is__________.
a)
45 degrees, 90 degrees
b)
90 degrees, 45 degrees
c)
5 degrees, 60 degrees
d)
60 degrees, 5 degrees
8.
The forces that prevent Ekman Transport from moving water at the full angle expected are
a)
Coriolis effect, rotation of Earth
b)
Density, temperature
c)
friction, gravity
d)
illness, exhaustion
9.
As a result of the forces the act against Ekman transport, surface currents flow _______ in the Northern Hemisphere and _____ in the Southern Hemisphere.
a)
clockwise, counterclockwise
b)
counter clockwise, clockwise
c)
upward, downward
d)
downward, upward
10.
The circular patters of rotating surface currents are called:
a)
Equatorial currents
b)
poles
c)
circulation
d)
gyres
11.
Temperature of the moving water is a result of where the current originates. Currents flowing out from the equator are
a)
warm
b)
cold
12.
Temperature of the moving water is a result of where the current originates. Currents flowing out from the ploes are
a)
warm
b)
cold
13.
The atmospheric circulation cell nearest the equator, air rises near the equator and falls at about 30 degrees N & S are
a)
Polar Cells
b)
Ferrel Cells
c)
Hadley cells
14.
Atmospheric circulation cell between 30 and 60 degrees N and S, air rises at 60 degrees and falls at 30 degrees
a)
Polar Cells
b)
Ferrel Cells
c)
Hadley cells
15.
The surface winds within the Hadley Cells that blow from the east.
a)
Trade Winds
b)
Westerlies
c)
Polar Easterlies
d)
Jet Stream
16.
The surface winds within the Ferrel Cells that blow from the west.
a)
Trade Winds
b)
Westerlies
c)
Polar Easterlies
d)
Jet Stream
17.
The surface winds within the Polar Cells that blow from the east.
a)
Trade Winds
b)
Westerlies
c)
Polar Easterlies
d)
Jet Stream
18.
Equatorial low pressure area where tropical air comes together and rises.
a)
Trade Winds
b)
Westerlies
c)
Polar Easterlies
d)
ITCZ
19.
Current H?
a)
Peru Current
b)
Kuroshiro Current
c)
Gulf Stream Current
d)
Canary Current
20.
Current E?
a)
Peru Current
b)
Kuroshiro Current
c)
Gulf Stream Current
d)
Canary Current
21.
Current D?
a)
Brazil Current
b)
Alguhas Current
c)
Benguela Current
d)
Antarctic Circumpolar Current
22.
The __________ boundary currents are stronger and better defined because they are driven by the __________ and the rotation of the Earth
a)
eastern, western
b)
eastern, Trade Winds
c)
Western, Westerlies
d)
Western, Trade Winds
23.
Polar oceans do not freeze solid nor does the Tropical ocean boil away, they maintain fairly constant average temperatures because
a)
The Sun always strikes these regions at the same angle
b)
Air masses remain stationary near the poles and equator
c)
The continual motion of the atmosphere and oceans spreads heat throughout Earth
d)
Earth Radiates extra back into space
24.
How does the intensity of incoming solar radiation change from the equator to the poles?
a)
increases
b)
decreases
c)
doubles
d)
stays the same
25.
What is the ITCZ?
a)
The belt where low pressure tropical air spreads apart at 5 degrees latitude
b)
the belt where low pressure tropical air creates tropical cyclones
c)
the belt where high pressure tropical air falls at 30 degrees
d)
The belt where low pressure tropical comes together at rises,
26.
What is not a characteristic of an El Nino?
a)
There is a flatter thermocline across the Pacific
b)
There is more rain on the West coasts of North and South america
c)
There are weaker Trade Winds
d)
Ther is better fishing off the coast of Peru because of increased upwelling
27.
A person standing in Hawaii is moving _______ that a person in Alaska because the circumference of the Earth in Hawaii is _____.
a)
slower, bigger
b)
slower, smaller
c)
faster, bigger
d)
slower, smaller
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