GEO Exam #3

The most significant of all atmospheric disturbances are...

• Occlusion

• Midlatitude Cyclones

• Cold Fronts

Who developed the midlatitude cyclone model?

• Norwegian meterologists

• American meterologists

• Arthur Holmes

What is a cold front?

• The leading edge of an advancing cold air mass

• The leaning edge of an advancing warm air mass

• Occlusion

Approximately how many midlatitude cyclones are there in the northern hemisphere at any given time? 

• 5-10

• 18-25

• 55

• 30

 Which direction do midlatitude cyclones move? 

• Eastward (West to East)

• South to East

• West to North

What is a warm front?

• A steeper Lift Gradient (rapid rise of air). 

• The leading edge of an advancing warm air mass.

• Advancing cold air mass

 Why is the cold front sector of a midlatitude cyclone stormier than the warm front sector? 

• Warm fronts

• Occlusion

• Steeper Lift Gradient (rapid rise of air). 

What causes the demise of a midlatitude cyclone? 

• Occlusion

• Cold fronts

• Warm fronts

Which causes occlusion of a midlatitude cyclone? 

• Cold Front catches up to and overtakes the Warm Front, forming an Occluded Front 

• The leading edge of an advancing cold air mass.

• Steeper Lift Gradient (rapid rise of air). 

When is hurricane season in the USA?

• June 1st to November 30th

• January 1st to March 30th

• April 5th to October 31st