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Chapter 6
Atmospheric
and Oceanic
Circulations
Robert W. Christopherson
Tim Schultz
Review: Wind Essentials
Wind occurs because
A. air pressure is constant but temperatures are
different.
B. air from the ocean flows onto land.
C. of differences in air pressure.
D. gravity exerts a downward force on the atmosphere.
Copyright © 2009 Pearson Prentice Hall, Pearson Education, Inc.
Review: Driving Forces within the
Atmosphere
Which of the following is incorrectly matched?
A. pressure gradient force : movement directly across
the isobars
B. Coriolis force : deflection to the right in the southern
hemisphere
C. friction force : not significant above 500 meters
D. cyclone : low pressure
Copyright © 2009 Pearson Prentice Hall, Pearson Education, Inc.
Review: Atmospheric Patterns of Motion
The equatorial low-pressure trough
A. is another name for the intertropical convergence
zone.
B. remains over the equator year-round.
C. frequently has clouds and rain.
D. all of the above
E. A and C only
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Review: Global Winds
Which of the following is true of the trade winds?
A. Unlike other winds, they are named for the direction
they blow instead of the direction they originate.
B. They are westerly in both hemispheres.
C. They blow from the equator toward the subtropics.
D. They are part of the Hadley circulation cells.
Copyright © 2009 Pearson Prentice Hall, Pearson Education, Inc.
Review: Upper Atmosphere Circulation
How many jet streams are there?
A. one
B. two
C. three
D. four
E. two in winter, one in summer, in each hemisphere
Copyright © 2009 Pearson Prentice Hall, Pearson Education, Inc.
Review: Upper Atmosphere Circulation
Which statement is true of Rossby waves?
A. They do not have significant impact outside of the
polar and subpolar regions.
B. They generate cyclonic storm systems.
C. They occur only when the sea surface is calm.
D. They cut across the jet stream.
Copyright © 2009 Pearson Prentice Hall, Pearson Education, Inc.
Review: Local Winds
A sea breeze occurs when
A. predominant westerlies encounter a landmass.
B. cold air descends and diverges over a coast.
C. land warms more rapidly than water, creating a
pressure gradient.
D. waves crashing on the beach create an onshore wind.
Copyright © 2009 Pearson Prentice Hall, Pearson Education, Inc.
Review: Oceanic Currents
Oceanic currents generally
A. follow global high-pressure circulation.
B. move north to south along western margins of
continents.
C. follow the influence of severe winter storms (low
pressure).
D. move west to east along the equator.
Copyright © 2009 Pearson Prentice Hall, Pearson Education, Inc.