Question 1

What effects might a subsidence inversion have on weather conditions at the ground?

Accepted Answer

An inversion represents an atmospheric condition where the air becomes warmer with height.Inversions that form as air slowly sinks over a large area are called subsidence inversions.They sometimes occur at the surface,but more frequently,they are observed aloft and are often associated with large high-pressure areas because of the sinking air motions associated with these systems.
An inversion represents an atmosphere that is absolutely stable.The reason for this is that within the inversion,warm air overlies cold air,and,if air rises into the inversion,it is becoming colder,while the air around it is getting warmer.Obviously,the colder air would tend to sink.Inversions,therefore,act as lids on vertical air motion.When an inversion exists near the ground,stratus clouds,fog,haze,and pollutants are all kept close to the surface.​

Question 2

Sinking air sometimes cools adiabatically.

Accepted Answer

A) True 
 B)False  False

Question 3

If an air parcel is given a small push upward and it continues to move upward on its own accord,the atmosphere is said to be
Dynamic.

Accepted Answer

A) stable. 
B) unstable. 
C) ​buoyant. 
D) ​dynamic. 
E) ​supersaturated. 
A) stable. 
B) unstable. 
C) ​buoyant. 
D) ​dynamic. 
E) ​supersaturated. B

Question 4

The rate at which the actual air temperature changes with increasing height above the surface is referred to as the ____ rate.​

Accepted Answer

A) dry adiabatic 
B) environmental lapse 
C) ​moist adiabatic 
D) ​thermoclinic 
E) ​absolute stability 
A) dry adiabatic 
B) environmental lapse 
C) ​moist adiabatic 
D) ​thermoclinic 
E) ​absolute stability

Question 5

Suppose the surface air temperature is 66°F.If the base of a cumulus congestus cloud directly above you is 2,000 feet,what would be the approximate temperature at an altitude of 5,000 feet above you inside the cloud? (Hint: the dry adiabatic rate is 5.5°F per 1,000 feet,the moist adiabatic rate is 3.0°F per 1,000 feet.)

Accepted Answer

A) 55°F 
B) 49°F 
C) ​46°F 
D) ​41°F 
E) ​32°F 
A) 55°F 
B) 49°F 
C) ​46°F 
D) ​41°F 
E) ​32°F

Question 6

Usually when a cumulonimbus cloud begins to dissipate,the bottom half of the cloud dissipates first.​

Accepted Answer

A) True 
 B)False

Question 7

The rate at which the temperature changes inside a rising (or descending)parcel of saturated air is called the ____ rate.​

Accepted Answer

A) environmental lapse 
B) dry adiabatic 
C) ​moist adiabatic 
D) ​latent heat release 
E) ​specific heat release 
A) environmental lapse 
B) dry adiabatic 
C) ​moist adiabatic 
D) ​latent heat release 
E) ​specific heat release

Question 8

List and explain several processes by which an unstable atmosphere can be made stable.​

Accepted Answer

​The atmosphere tends to become more sta

Question 9

How do castellanus clouds form,and what do they indicate?

Accepted Answer

​Occasionally,altocumulus show vertical

Question 10

If the environmental lapse rate is 5°C per 1,000 m and the temperature at Earth's surface is 25°C,then the air temperature at 2,000 m above the ground is​

Accepted Answer

A) 25°C. 
B) 30°C. 
C) ​20°C. 
D) ​15°C. 
E) ​10°C. 
A) 25°C. 
B) 30°C. 
C) ​20°C. 
D) ​15°C. 
E) ​10°C.

Question 11

The safest place to build an airport in a mountainous region is along a deep valley.​

Accepted Answer

A) True 
 B)False

Question 12

Explain the role of convection in cloud formation.​

Accepted Answer

When surface air gets heated up a hot "b

Question 13

Conditional instability occurs whenever the environmental lapse rate is ____ the moist adiabatic rate and the dry adiabatic rate.

Accepted Answer

A) higher than 
B) less than 
C) ​between 
D) ​the same as 
E) ​double 
A) higher than 
B) less than 
C) ​between 
D) ​the same as 
E) ​double

Question 14

The environmental lapse rate is almost always the same as the adiabatic rate.

Accepted Answer

A) True 
 B)False

Question 15

An example of orographic clouds would be​

Accepted Answer

A) cumulus clouds produced by surface heating. 
B) rotor clouds. 
C) ​lee-wave clouds. 
D) ​clouds that form on the upwind slope of a mountain. 
E) ​pileus clouds. 
A) cumulus clouds produced by surface heating. 
B) rotor clouds. 
C) ​lee-wave clouds. 
D) ​clouds that form on the upwind slope of a mountain. 
E) ​pileus clouds.

Question 16

If the environmental lapse rate is less than the moist adiabatic rate,the atmosphere is​

Accepted Answer

A) conditionally unstable. 
B) absolutely stable. 
C) ​absolutely unstable. 
D) ​neutrally stable. 
E) ​superadiabatic. 
A) conditionally unstable. 
B) absolutely stable. 
C) ​absolutely unstable. 
D) ​neutrally stable. 
E) ​superadiabatic.

Question 17

Describe the conditions required to change a layer of altostratus into a layer of altocumulus.​

Accepted Answer

This happens if the top of the original

Question 18

Altocumulus castellanus appearing in the sky indicates that the mid-level of the troposphere is becoming

Accepted Answer

A) more unstable. 
B) less unstable. 
C) ​conditionally stable. 
D) ​more stable. 
E) ​more conditionally stable. 
A) more unstable. 
B) less unstable. 
C) ​conditionally stable. 
D) ​more stable. 
E) ​more conditionally stable.

Question 19

Absolute instability results when the environmental lapse rate is ____ the ____ adiabatic rate.

Accepted Answer

A) greater than;moist 
B) less than;moist 
C) the same as;dry 
D) ​greater than;dry 
E) ​less than;dry 
A) greater than;moist 
B) less than;moist 
C) the same as;dry 
D) ​greater than;dry 
E) ​less than;dry

Question 20

The environmental lapse rate decreases due to cold advection at higher altitudes and daytime solar heating.

Accepted Answer

A) True 
 B)False

What effects might a subsidence inversion have on weather conditions at the ground?

Sinking air sometimes cools adiabatically.

If an air parcel is given a small push upward and it continues to move upward on its own accord,the atmosphere is said to be Dynamic.

The rate at which the actual air temperature changes with increasing height above the surface is referred to as the ____ rate.

Usually when a cumulonimbus cloud begins to dissipate,the bottom half of the cloud dissipates first.

The rate at which the temperature changes inside a rising (or descending)parcel of saturated air is called the ____ rate.

List and explain several processes by which an unstable atmosphere can be made stable.

How do castellanus clouds form,and what do they indicate?

If the environmental lapse rate is 5°C per 1,000 m and the temperature at Earth's surface is 25°C,then the air temperature at 2,000 m above the ground is

The safest place to build an airport in a mountainous region is along a deep valley.

Explain the role of convection in cloud formation.

Conditional instability occurs whenever the environmental lapse rate is ____ the moist adiabatic rate and the dry adiabatic rate.

The environmental lapse rate is almost always the same as the adiabatic rate.

An example of orographic clouds would be

If the environmental lapse rate is less than the moist adiabatic rate,the atmosphere is

Describe the conditions required to change a layer of altostratus into a layer of altocumulus.

Altocumulus castellanus appearing in the sky indicates that the mid-level of the troposphere is becoming

Absolute instability results when the environmental lapse rate is the adiabatic rate.

The environmental lapse rate decreases due to cold advection at higher altitudes and daytime solar heating.

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation Dew Fog and Clouds

Precipitation

Air Pressure and Winds

Wind Small Scale and Local Systems

Wind Global Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light Color and Atmospheric Optics

Filters

Exam 6: Stability and Cloud Development

What effects might a subsidence inversion have on weather conditions at the ground?

Sinking air sometimes cools adiabatically.

If an air parcel is given a small push upward and it continues to move upward on its own accord,the atmosphere is said to be Dynamic.

The rate at which the actual air temperature changes with increasing height above the surface is referred to as the ____ rate.​

Usually when a cumulonimbus cloud begins to dissipate,the bottom half of the cloud dissipates first.​

The rate at which the temperature changes inside a rising (or descending)parcel of saturated air is called the ____ rate.​

List and explain several processes by which an unstable atmosphere can be made stable.​

How do castellanus clouds form,and what do they indicate?

If the environmental lapse rate is 5°C per 1,000 m and the temperature at Earth's surface is 25°C,then the air temperature at 2,000 m above the ground is​

The safest place to build an airport in a mountainous region is along a deep valley.​

Explain the role of convection in cloud formation.​

Conditional instability occurs whenever the environmental lapse rate is ____ the moist adiabatic rate and the dry adiabatic rate.

The environmental lapse rate is almost always the same as the adiabatic rate.

An example of orographic clouds would be​

If the environmental lapse rate is less than the moist adiabatic rate,the atmosphere is​

Describe the conditions required to change a layer of altostratus into a layer of altocumulus.​

Altocumulus castellanus appearing in the sky indicates that the mid-level of the troposphere is becoming

Absolute instability results when the environmental lapse rate is ____ the ____ adiabatic rate.

The environmental lapse rate decreases due to cold advection at higher altitudes and daytime solar heating.

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation Dew Fog and Clouds

Precipitation

Air Pressure and Winds

Wind Small Scale and Local Systems

Wind Global Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light Color and Atmospheric Optics

Filters

The rate at which the actual air temperature changes with increasing height above the surface is referred to as the ____ rate.

Usually when a cumulonimbus cloud begins to dissipate,the bottom half of the cloud dissipates first.

The rate at which the temperature changes inside a rising (or descending)parcel of saturated air is called the ____ rate.

List and explain several processes by which an unstable atmosphere can be made stable.

If the environmental lapse rate is 5°C per 1,000 m and the temperature at Earth's surface is 25°C,then the air temperature at 2,000 m above the ground is

The safest place to build an airport in a mountainous region is along a deep valley.

Explain the role of convection in cloud formation.

An example of orographic clouds would be

If the environmental lapse rate is less than the moist adiabatic rate,the atmosphere is

Describe the conditions required to change a layer of altostratus into a layer of altocumulus.

Absolute instability results when the environmental lapse rate is the adiabatic rate.