Quick Review: Global Air Circulation

In which zone is the United States?

• tradewinds

• westerlies

• easterlies

• hadley cells

What pressure change would you experience traveling from 60⁰N to 30⁰N?

• increasing pressure

• decreasing pressure

• constant pressure

• rapid increase, then decrease

Which pressure zone is associated with dry areas and cold temperatures?

• equatorial low

• subtropical high

• subpolar low

• polar high

Which of the following does NOT describe the equatorial low?

• It is a location where the tradewinds meet.

• It is characterized by lots of precipitation.

• It is a location with rising air.

• It is the location of the great deserts of the world.

When does a land breeze originate and what happens?

• at night and flows toward the land

• during the day and flows toward the land

• at night and flows toward the water

• during the day and flows toward the water

Where would you expect the most precipitation?

• along the Equator

• Locations where cold air sinks

• The leeward slope of a mountain

• at the poles

What is predominantly responsible for determining wind speed?

• Coriolis Effect

• Earth's rotation

• Friction

• Pressure Gradient Force

Which of the following correctly describes a Hadley Cell?

• Tradewinds converge at the equator.

• Dry weather conditions are found along the equator.

• Precipitation is found where cooler air sinks along 30⁰.

Which is true of an El Niño event?

• Cold upwellings of nutrient-rich water are suppressed.

• Surface water along the west coast of South America cools.

• Tradewinds strengthen.

• Cold water is brought toward Australia.

Wind moves from...

• high to low pressure

• low to high pressure