Question 1

Explain why afternoons tend to be windier than mornings, especially on warm days when the weather is clear or partly cloudy.

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Question 2

What is a stable atmosphere, and how can it form?

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Question 3

A hot "bubble" of air is called a ____________________.

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Question 4

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

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Question 5

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

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Question 6

List four primary ways clouds form, and describe the formation of one cloud type by each method.

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Question 7

Explain why the surface air on the leeward side of a mountain can be drier than the surface air on the windward side. What is this effect called? Can you think of a location in the United States where this might actually occur?

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Question 8

The potential instability brought about by the lifting of a stable layer whose surface is humid and whose top is "dry" is called ____________________.

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Question 9

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

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Question 10

Explain why a rising parcel of air expands and cools, whereas a sinking parcel is compressed and warms.

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Question 11

Explain why an inversion represents an atmosphere that is absolutely stable.

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Question 12

The process of a rising, churning cloud mixing with cooler air is called ____________________.

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Question 13

Explain the role of convection in cloud formation.

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Question 14

How does daytime heating at the ground during the day affect atmospheric stability?

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Question 15

____________________ act as lids on vertical air motion. When they exist near the ground, stratus clouds, fog, haze, and pollutants are all kept close to the surface.

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Question 16

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

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Question 17

Suppose you observe lenticular clouds that appear to be motionless. Is the air in the vicinity of the cloud motionless? Explain.

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Question 18

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

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Question 19

Cumulonimbus clouds indicate unstable atmospheric conditions. What stops the upward growth and causes the top of a cumulonimbus cloud to flatten out into an anvil?

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Question 20

Why are moist and dry adiabatic rates of cooling different?

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Quiz 6: Stability and Cloud Development

Explain why afternoons tend to be windier than mornings, especially on warm days when the weather is clear or partly cloudy.

What is a stable atmosphere, and how can it form?

A hot "bubble" of air is called a ____________________.

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

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

List four primary ways clouds form, and describe the formation of one cloud type by each method.

Explain why the surface air on the leeward side of a mountain can be drier than the surface air on the windward side. What is this effect called? Can you think of a location in the United States where this might actually occur?

The potential instability brought about by the lifting of a stable layer whose surface is humid and whose top is "dry" is called ____________________.

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

Explain why a rising parcel of air expands and cools, whereas a sinking parcel is compressed and warms.

Explain why an inversion represents an atmosphere that is absolutely stable.

The process of a rising, churning cloud mixing with cooler air is called ____________________.

Explain the role of convection in cloud formation.

How does daytime heating at the ground during the day affect atmospheric stability?

____________________ act as lids on vertical air motion. When they exist near the ground, stratus clouds, fog, haze, and pollutants are all kept close to the surface.

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

Suppose you observe lenticular clouds that appear to be motionless. Is the air in the vicinity of the cloud motionless? Explain.

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

Cumulonimbus clouds indicate unstable atmospheric conditions. What stops the upward growth and causes the top of a cumulonimbus cloud to flatten out into an anvil?

Why are moist and dry adiabatic rates of cooling different?