Question 1

Which of the following gives the name for the rate at which the temperature changes inside a rising (or descending) parcel of moist air?

Accepted Answer

A) latent heat release rate 
B) saturated adiabatic lapse rate 
C) dry adiabatic lapse rate 
D) environmental lapse rate 
A) latent heat release rate 
B) saturated adiabatic lapse rate 
C) dry adiabatic lapse rate 
D) environmental lapse rate

Question 2

Which of the following environmental lapse rates represents the most unstable atmosphere in a layer of unsaturated air?

Accepted Answer

A)  C per 1000 m 
B)  C per 1000 m 
C)  C per 1000 m 
D)  C per 1000 m 
A)  C per 1000 m 
B)  C per 1000 m 
C)  C per 1000 m 
D)  C per 1000 m

Question 3

Suppose a conventional jet airliner is at an altitude of 10 km, the outside air pressure is 250 hPa, and the outside temperature is - C. What would be the air temperature inside the jet if the outside air is brought inside and compressed to a 1000 hPa pressure? (Assume that 1000 hPa pressure is equivalent to 0 m altitude.)

Accepted Answer

A)  C 
B)  C 
C)  C 
D) - C 
A)  C 
B)  C 
C)  C 
D) - C

Question 4

A parcel of unsaturated air with a temperature of 30°C rises from the surface to an altitude of 1000 metres. Which of the following describes the temperature of the unsaturated air parcel at this altitude?

Accepted Answer

A) 6°C colder than at the surface 
B) 6°C warmer than at the surface 
C) 10°C colder than at the surface 
D) 10°C warmer than at the surface 
A) 6°C colder than at the surface 
B) 6°C warmer than at the surface 
C) 10°C colder than at the surface 
D) 10°C warmer than at the surface

Question 5

Which of the following conditions are often indicated by soaring birds in flight, such as hawks and eagles?

Accepted Answer

A) irreversible pseudoadiabatic processes 
B) subsidence inversions 
C) absolute instability 
D) thermals 
A) irreversible pseudoadiabatic processes 
B) subsidence inversions 
C) absolute instability 
D) thermals

Question 6

Explain how lifting an air layer can steepen the environmental lapse rate and make the layer more unstable.

Accepted Answer

When an air layer is lifted, it expands

Question 7

Explain why clouds form in rising air. Would it be possible for rising air to remain cloud-free?

Accepted Answer

Clouds form in rising air because as the

Question 8

Which of the following pr°Cesses increases the environmental lapse rate?

Accepted Answer

A) cold advection at higher altitudes and daytime solar heating 
B) warm advection at higher altitudes and daytime radiational cooling 
C) daytime solar heating and surface radiational cooling 
D) cold advection at higher altitudes and surface radiational cooling 
A) cold advection at higher altitudes and daytime solar heating 
B) warm advection at higher altitudes and daytime radiational cooling 
C) daytime solar heating and surface radiational cooling 
D) cold advection at higher altitudes and surface radiational cooling

Question 9

What types of clouds might you see form when a cold mass of air moves over warmer water?

Accepted Answer

When a cold mass of air moves over warme

Question 10

List and explain the four pr°Cesses that cause rising air motions in the atmosphere.

Accepted Answer

The four processes that cause rising air

Question 11

Which of the following explains why there is a difference between the moist and dry adiabatic rates?

Accepted Answer

A) Latent heat is released by a rising parcel of saturated air. 
B) Saturated air is always unstable. 
C) An unsaturated air parcel expands more rapidly than a saturated air parcel. 
D) Moist air weighs less than dry air. 
A) Latent heat is released by a rising parcel of saturated air. 
B) Saturated air is always unstable. 
C) An unsaturated air parcel expands more rapidly than a saturated air parcel. 
D) Moist air weighs less than dry air.

Question 12

Which of the following pr°Cesses make a layer of air more unstable?

Accepted Answer

A) warming the upper part of the layer 
B) cooling the upper part of the layer 
C) preventing mixing of the air in the layer 
D) sinking the entire air layer 
A) warming the upper part of the layer 
B) cooling the upper part of the layer 
C) preventing mixing of the air in the layer 
D) sinking the entire air layer

Question 13

Which of the following gives the air temperature at 2000 metres above the ground when the environmental lapse rate is  C per 1000 metres and the temperature at the Earth's surface is  C?

Accepted Answer

A)  C 
B)  C 
C)  C 
D)  C 
A)  C 
B)  C 
C)  C 
D)  C

Question 14

Suppose the surface air temperature is  C. If the base of a cumulus congestus cloud directly above you is 2000 metres, what is the approximate temperature at an altitude of 5000 metres inside the cloud? (Assume the dry adiabatic rate is  C per 1000 metres, and the moist adiabatic rate is  C per 1000 metres)

Accepted Answer

A) - C 
B) - C 
C) - C 
D) - C 
A) - C 
B) - C 
C) - C 
D) - C

Question 15

Describe the changes in atmospheric stability throughout a 24-hour period beginning at sunrise on a cloudless summer day over land.

Accepted Answer

The answer of Describe the changes in atmospheric stability throughout...

Question 16

Which of the following is found just above cumulus humilis clouds?

Accepted Answer

A) a conditionally unstable layer 
B) a stable layer 
C) an unstable layer 
D) unusually strong horizontal winds 
A) a conditionally unstable layer 
B) a stable layer 
C) an unstable layer 
D) unusually strong horizontal winds

Question 17

In which of the following l°Cations is a rotor cloud most likely observed?

Accepted Answer

A) in absolutely unstable air 
B) in the middle of a cumulonimbus 
C) on top of a developing cumulus cloud 
D) beneath a lenticular cloud 
A) in absolutely unstable air 
B) in the middle of a cumulonimbus 
C) on top of a developing cumulus cloud 
D) beneath a lenticular cloud

Question 18

At the Earth's surface, at which of the following temperatures does a rising saturated air parcel cool most rapidly?

Accepted Answer

A) 0°C 
B) 10°C 
C) -12°C 
D) 20°C 
A) 0°C 
B) 10°C 
C) -12°C 
D) 20°C

Question 19

Which of the following cloud types are commonly found downwind of a mountain?

Accepted Answer

A) mammatus clouds 
B) anvil clouds 
C) lenticular clouds 
D) contrails 
A) mammatus clouds 
B) anvil clouds 
C) lenticular clouds 
D) contrails

Question 20

Explain how the stability of the atmosphere can affect the types of clouds that form.

Accepted Answer

The stability of the atmosphere plays a

Which of the following gives the name for the rate at which the temperature changes inside a rising (or descending) parcel of moist air?

Which of the following environmental lapse rates represents the most unstable atmosphere in a layer of unsaturated air?

A parcel of unsaturated air with a temperature of 30°C rises from the surface to an altitude of 1000 metres. Which of the following describes the temperature of the unsaturated air parcel at this altitude?

Which of the following conditions are often indicated by soaring birds in flight, such as hawks and eagles?

Explain how lifting an air layer can steepen the environmental lapse rate and make the layer more unstable.

Explain why clouds form in rising air. Would it be possible for rising air to remain cloud-free?

Which of the following pr°Cesses increases the environmental lapse rate?

What types of clouds might you see form when a cold mass of air moves over warmer water?

List and explain the four pr°Cesses that cause rising air motions in the atmosphere.

Which of the following explains why there is a difference between the moist and dry adiabatic rates?

Which of the following pr°Cesses make a layer of air more unstable?

Which of the following gives the air temperature at 2000 metres above the ground when the environmental lapse rate is 5C per 1000 metres and the temperature at the Earth's surface is 2511efbc95_3126_a591_ad5f_1348e684797a_TB1378_00C?

Describe the changes in atmospheric stability throughout a 24-hour period beginning at sunrise on a cloudless summer day over land.

Which of the following is found just above cumulus humilis clouds?

In which of the following l°Cations is a rotor cloud most likely observed?

At the Earth's surface, at which of the following temperatures does a rising saturated air parcel cool most rapidly?

Which of the following cloud types are commonly found downwind of a mountain?

Explain how the stability of the atmosphere can affect the types of clouds that form.

Earth and Its Atmosphere

Energy: Warming 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

Filters

Exam 6: Stability and Cloud Development

Which of the following gives the name for the rate at which the temperature changes inside a rising (or descending) parcel of moist air?

Which of the following environmental lapse rates represents the most unstable atmosphere in a layer of unsaturated air?

A parcel of unsaturated air with a temperature of 30°C rises from the surface to an altitude of 1000 metres. Which of the following describes the temperature of the unsaturated air parcel at this altitude?

Which of the following conditions are often indicated by soaring birds in flight, such as hawks and eagles?

Explain how lifting an air layer can steepen the environmental lapse rate and make the layer more unstable.

Explain why clouds form in rising air. Would it be possible for rising air to remain cloud-free?

Which of the following pr°Cesses increases the environmental lapse rate?

What types of clouds might you see form when a cold mass of air moves over warmer water?

List and explain the four pr°Cesses that cause rising air motions in the atmosphere.

Which of the following explains why there is a difference between the moist and dry adiabatic rates?

Which of the following pr°Cesses make a layer of air more unstable?

Which of the following gives the air temperature at 2000 metres above the ground when the environmental lapse rate is 5C per 1000 metres and the temperature at the Earth's surface is 2511efbc95_3126_a591_ad5f_1348e684797a_TB1378_00C?

Describe the changes in atmospheric stability throughout a 24-hour period beginning at sunrise on a cloudless summer day over land.

Which of the following is found just above cumulus humilis clouds?

In which of the following l°Cations is a rotor cloud most likely observed?

At the Earth's surface, at which of the following temperatures does a rising saturated air parcel cool most rapidly?

Which of the following cloud types are commonly found downwind of a mountain?

Explain how the stability of the atmosphere can affect the types of clouds that form.

Earth and Its Atmosphere

Energy: Warming 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

Filters