Question 1

The polar front theory of a developing wave cyclone was conceived in

Accepted Answer

A)   Norway.
B)   Great Britain.
C)   the United States.
D)   Germany.
E)   the Soviet Union.

Question 2

Developing low pressure areas generally have ____ air near the surface and ____ air aloft.

Accepted Answer

A)   converging,diverging
B)   diverging,converging
C)   converging,converging
D)   diverging,diverging

Question 3

The warm sector is located

Accepted Answer

A)   ahead of the warm front and behind the cold front.
B)   ahead of the cold front and behind the warm front.
C)   below the occluded front and above the cold front. B

Question 4

If the outflow of air around a surface high pressure area is greater than the convergence of air aloft,you would observe

Accepted Answer

A)   in increase in pressure in the center of the high.
B)   movement of the high toward the northeast.
C)   a decrease in the central pressure.
D)   strengthening in the high.

Question 5

Temperature advection does not occur when the winds do not cross the isotherms.

Accepted Answer

A) True 
 B)False

Question 6

Describe,in words or with a sketch,a wind flow pattern that will result in upper-level divergence.

Accepted Answer

The answer of Describe,in words or with a sketch,a wind...

Question 7

Cyclogenesis is the ____ of a mid-latitude cyclone.

Accepted Answer

A)   development or strengthening
B)   weakening or dissipation
C)   term for the exact midpoint
D)   none of the above

Question 8

List some of the reasons why the polar front theory doesn't apply to storms in the tropics.

Accepted Answer

The polar front theory does not apply to...

Question 9

During baroclinic instability,

Accepted Answer

A)   wave cyclones can intensify into large storm systems.
B)   strong wind speed shear exists from the surface up to at least the 500 mb level.
C)   rising and descending air motions exist.
D)   temperature advection is occurring.
E)   all of these

Question 10

As westerly winds blow over a north-south oriented mountain range,the airflow is deflected in such a way that a trough forms on the ____________ side of the mountain.

Accepted Answer

A)   upwind
B)   downwind
C)   both upwind and downwind
D)   none of the above B

Question 11

Atmospheric shortwaves usually move ____ at a speed that is ____ than longwaves.

Accepted Answer

A)   east to west,faster
B)   west to east,faster
C)   east to west,slower
D)   west to east,slower

Question 12

Which of the following is true about vorticity?

Accepted Answer

A)   Vorticity can be observed by satellites,even during cloudy conditions.
B)   Planetary vorticity is always present.
C)   Relative vorticity can be either positive or negative.
D)   all of the above
E)   none of the above

Question 13

Suppose you observe a middle-latitude cyclone on the surface weather chart.What kind(s)of weather chart(s)would you want to examine to determine whether the cyclone is likely to strengthen or decay over the next 24 hours? What information would you hope to gain from each chart type?

Accepted Answer

To determine whether the middle-latitude...

Question 14

Strong storms that develop over water,poleward of the polar front,are called

Accepted Answer

A)   nor'easters.
B)   upslope lows.
C)   lee-side lows.
D)   polar lows.
E)   none of the above

Question 15

When a deep upper-level trough is located to the east of a surface anticyclone,the surface anticyclone will tend to move toward the

Accepted Answer

A)   northwest.
B)   northeast.
C)   southwest.
D)   southeast.

Question 16

On an upper-level chart where the isotherms cross the isobars (or contours) and temperature advection occurs,the atmosphere is called

Accepted Answer

A)   barotropic.
B)   geostrophic.
C)   hydrostatic.
D)   baroclinic.

Question 17

Northeasters (or nor'easters) are midlatitude storms commonly found

Accepted Answer

A)   along the Pacific coast of North America.
B)   along the Atlantic coast of North America.
C)   along the Gulf coast of North America.
D)   along both the Pacific and Atlantic coasts of North America.

Question 18

Why is it important locate and follow the movements of atmospheric shortwaves?

Accepted Answer

Locating and following the movements of atmospheric shortwaves is important for several reasons, primarily related to weather forecasting and understanding atmospheric dynamics:

1. Weather Prediction: Shortwaves are disturbances in the mid or upper levels of the atmosphere that can lead to the development of low-pressure systems at the surface. These systems are often associated with various weather events such as thunderstorms, heavy rain, or snow. Tracking shortwaves helps meteorologists predict these events and issue timely warnings to the public.

2. Precipitation Forecasting: Shortwaves can enhance lift in the atmosphere, which is a key component for cloud formation and precipitation. By monitoring these waves, forecasters can better anticipate areas that may experience enhanced rainfall or snowfall, which is crucial for agriculture, water management, and preparing for potential flooding.

3. Temperature Changes: The movement of shortwaves can influence temperature patterns. For example, a shortwave trough (an elongated area of low pressure) can bring cooler air and a shortwave ridge (an elongated area of high pressure) can bring warmer air. Understanding their movement helps predict temperature fluctuations, which is important for energy demand forecasting and public safety.

4. Severe Weather Events: Shortwaves can trigger or intensify severe weather conditions such as thunderstorms, hail, or tornadoes. Early detection of these waves allows for advanced warnings, which can save lives and reduce property damage by giving people more time to prepare.

5. Climate Studies: Studying the patterns and frequency of shortwaves contributes to our understanding of the climate system. Shortwaves can be influenced by larger-scale phenomena like the jet stream or by climate change. Understanding their behavior is important for climate modeling and assessing long-term climate variations.

6. Aviation Safety: Shortwaves can create turbulence and other hazardous flying conditions. Pilots and air traffic controllers use information about these atmospheric features to plan safer flight routes and altitudes, minimizing the risk of in-flight incidents.

7. Maritime Operations: For maritime navigation, especially in open seas, knowledge of shortwaves can help in predicting rough sea conditions and planning safer routes for ships.

In summary, tracking atmospheric shortwaves is a critical component of meteorology that plays a significant role in improving the accuracy of weather forecasts, preparing for severe weather events, and enhancing our understanding of atmospheric processes. It is a key factor in mitigating the impact of adverse weather on society and the environment.

Question 19

With the aid of a diagram,show why an intensifying surface low pressure center which is located just east of a deep upper-level trough will often move in a northeasterly direction.

Accepted Answer

In this scenario, the intensifying surfa...

Question 20

The piling up of air above a region is called

Accepted Answer

A)   thickening.
B)   divergence.
C)   cyclogenesis.
D)   convergence.

Exam 12: Middle-Latitude Cyclones

The polar front theory of a developing wave cyclone was conceived in

Correct Answer
verified

Developing low pressure areas generally have air near the surface and air aloft.

Correct Answer
verified

The warm sector is located

Correct Answer
verified
B

If the outflow of air around a surface high pressure area is greater than the convergence of air aloft,you would observe

Correct Answer
verified

Temperature advection does not occur when the winds do not cross the isotherms.

Correct Answer
verified

Describe,in words or with a sketch,a wind flow pattern that will result in upper-level divergence.

Correct Answer
verified

Cyclogenesis is the ____ of a mid-latitude cyclone.

Correct Answer
verified

List some of the reasons why the polar front theory doesn't apply to storms in the tropics.

Correct Answer
Answered by ExamLex AI
The polar front theory does not apply to...
View Answer

During baroclinic instability,

Correct Answer
verified

As westerly winds blow over a north-south oriented mountain range,the airflow is deflected in such a way that a trough forms on the ____________ side of the mountain.

Correct Answer
verified
B

Atmospheric shortwaves usually move at a speed that is than longwaves.

Correct Answer
verified

Which of the following is true about vorticity?

Correct Answer
verified

Suppose you observe a middle-latitude cyclone on the surface weather chart.What kind(s)of weather chart(s)would you want to examine to determine whether the cyclone is likely to strengthen or decay over the next 24 hours? What information would you hope to gain from each chart type?

Correct Answer
Answered by ExamLex AI
To determine whether the middle-latitude...
View Answer

Strong storms that develop over water,poleward of the polar front,are called

Correct Answer
verified

When a deep upper-level trough is located to the east of a surface anticyclone,the surface anticyclone will tend to move toward the

Correct Answer
verified

On an upper-level chart where the isotherms cross the isobars (or contours) and temperature advection occurs,the atmosphere is called

Correct Answer
verified

Northeasters (or nor'easters) are midlatitude storms commonly found

Correct Answer
verified

Why is it important locate and follow the movements of atmospheric shortwaves?

With the aid of a diagram,show why an intensifying surface low pressure center which is located just east of a deep upper-level trough will often move in a northeasterly direction.

Correct Answer
Answered by ExamLex AI
In this scenario, the intensifying surfa...
View Answer

The piling up of air above a region is called

Correct Answer
verified

Exam 12: Middle-Latitude Cyclones

The polar front theory of a developing wave cyclone was conceived in

Correct AnswerverifiedShow Answer

Developing low pressure areas generally have ____ air near the surface and ____ air aloft.

Correct AnswerverifiedShow Answer

The warm sector is located

Correct AnswerverifiedB

If the outflow of air around a surface high pressure area is greater than the convergence of air aloft,you would observe

Correct AnswerverifiedShow Answer

Temperature advection does not occur when the winds do not cross the isotherms.

Correct AnswerverifiedShow Answer

Describe,in words or with a sketch,a wind flow pattern that will result in upper-level divergence.

Correct AnswerverifiedShow Answer

Cyclogenesis is the ____ of a mid-latitude cyclone.

Correct AnswerverifiedShow Answer

List some of the reasons why the polar front theory doesn't apply to storms in the tropics.

Correct AnswerAnswered by ExamLex AIThe polar front theory does not apply to...View AnswerShow Answer

During baroclinic instability,

Correct AnswerverifiedShow Answer

As westerly winds blow over a north-south oriented mountain range,the airflow is deflected in such a way that a trough forms on the ____________ side of the mountain.

Correct AnswerverifiedB

Atmospheric shortwaves usually move ____ at a speed that is ____ than longwaves.

Correct AnswerverifiedShow Answer

Which of the following is true about vorticity?

Correct AnswerverifiedShow Answer

Suppose you observe a middle-latitude cyclone on the surface weather chart.What kind(s)of weather chart(s)would you want to examine to determine whether the cyclone is likely to strengthen or decay over the next 24 hours? What information would you hope to gain from each chart type?

Correct AnswerAnswered by ExamLex AITo determine whether the middle-latitude...View AnswerShow Answer

Strong storms that develop over water,poleward of the polar front,are called

Correct AnswerverifiedShow Answer

When a deep upper-level trough is located to the east of a surface anticyclone,the surface anticyclone will tend to move toward the

Correct AnswerverifiedShow Answer

On an upper-level chart where the isotherms cross the isobars (or contours) and temperature advection occurs,the atmosphere is called

Correct AnswerverifiedShow Answer

Northeasters (or nor'easters) are midlatitude storms commonly found

Correct AnswerverifiedShow Answer

Why is it important locate and follow the movements of atmospheric shortwaves?

With the aid of a diagram,show why an intensifying surface low pressure center which is located just east of a deep upper-level trough will often move in a northeasterly direction.

Correct AnswerAnswered by ExamLex AIIn this scenario, the intensifying surfa...View AnswerShow Answer

The piling up of air above a region is called

Correct AnswerverifiedShow Answer

Correct Answer
verified

Developing low pressure areas generally have air near the surface and air aloft.

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The polar front theory does not apply to...
View Answer

Correct Answer
verified

Correct Answer
verified
B

Atmospheric shortwaves usually move at a speed that is than longwaves.

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
To determine whether the middle-latitude...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
In this scenario, the intensifying surfa...
View Answer

Correct Answer
verified