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Mesoscale Meteorology and Convection

Description: This quiz will test your knowledge of mesoscale meteorology and convection.
Number of Questions: 15
Created by:
Tags: mesoscale meteorology convection meteorology
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What is the typical horizontal scale of mesoscale meteorological phenomena?

  1. 10-100 km

  2. 100-1000 km

  3. 1000-10000 km

  4. 10000-100000 km

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Correct Option: A
Explanation:

Mesoscale meteorological phenomena typically have horizontal scales of 10-100 km.

What is the typical vertical scale of mesoscale meteorological phenomena?

  1. 1-10 km

  2. 10-100 km

  3. 100-1000 km

  4. 1000-10000 km

Show answer
Correct Option: A
Explanation:

Mesoscale meteorological phenomena typically have vertical scales of 1-10 km.

What is the most common type of mesoscale meteorological phenomenon?

  1. Thunderstorms

  2. Tornadoes

  3. Hurricanes

  4. Blizzards

Show answer
Correct Option: A
Explanation:

Thunderstorms are the most common type of mesoscale meteorological phenomenon.

What is the main cause of convection?

  1. Differences in temperature

  2. Differences in pressure

  3. Differences in humidity

  4. Differences in wind speed

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Correct Option: A
Explanation:

Convection is mainly caused by differences in temperature.

What is the role of buoyancy in convection?

  1. It causes warm air to rise and cool air to sink.

  2. It causes cool air to rise and warm air to sink.

  3. It causes air to move horizontally.

  4. It causes air to move vertically.

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Correct Option: A
Explanation:

Buoyancy causes warm air to rise and cool air to sink.

What is the lapse rate?

  1. The rate at which temperature decreases with height

  2. The rate at which pressure decreases with height

  3. The rate at which humidity decreases with height

  4. The rate at which wind speed decreases with height

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Correct Option: A
Explanation:

The lapse rate is the rate at which temperature decreases with height.

What is the dry adiabatic lapse rate?

  1. 9.8 °C/km

  2. 6.5 °C/km

  3. 3.5 °C/km

  4. 1.0 °C/km

Show answer
Correct Option: A
Explanation:

The dry adiabatic lapse rate is 9.8 °C/km.

What is the moist adiabatic lapse rate?

  1. 6.5 °C/km

  2. 3.5 °C/km

  3. 1.0 °C/km

  4. 0.5 °C/km

Show answer
Correct Option: A
Explanation:

The moist adiabatic lapse rate is 6.5 °C/km.

What is the difference between the dry and moist adiabatic lapse rates?

  1. The dry adiabatic lapse rate is greater than the moist adiabatic lapse rate.

  2. The moist adiabatic lapse rate is greater than the dry adiabatic lapse rate.

  3. The dry and moist adiabatic lapse rates are the same.

  4. The dry and moist adiabatic lapse rates are not related.

Show answer
Correct Option: B
Explanation:

The moist adiabatic lapse rate is greater than the dry adiabatic lapse rate.

What is the role of the lapse rate in convection?

  1. It determines the stability of the atmosphere.

  2. It determines the direction of convection.

  3. It determines the speed of convection.

  4. It determines the intensity of convection.

Show answer
Correct Option: A
Explanation:

The lapse rate determines the stability of the atmosphere.

What is a stable atmosphere?

  1. An atmosphere in which the lapse rate is greater than the dry adiabatic lapse rate.

  2. An atmosphere in which the lapse rate is less than the dry adiabatic lapse rate.

  3. An atmosphere in which the lapse rate is equal to the dry adiabatic lapse rate.

  4. An atmosphere in which the lapse rate is not related to the dry adiabatic lapse rate.

Show answer
Correct Option: A
Explanation:

A stable atmosphere is an atmosphere in which the lapse rate is greater than the dry adiabatic lapse rate.

What is an unstable atmosphere?

  1. An atmosphere in which the lapse rate is less than the dry adiabatic lapse rate.

  2. An atmosphere in which the lapse rate is greater than the dry adiabatic lapse rate.

  3. An atmosphere in which the lapse rate is equal to the dry adiabatic lapse rate.

  4. An atmosphere in which the lapse rate is not related to the dry adiabatic lapse rate.

Show answer
Correct Option: A
Explanation:

An unstable atmosphere is an atmosphere in which the lapse rate is less than the dry adiabatic lapse rate.

What is a conditionally unstable atmosphere?

  1. An atmosphere in which the lapse rate is less than the dry adiabatic lapse rate, but greater than the moist adiabatic lapse rate.

  2. An atmosphere in which the lapse rate is greater than the dry adiabatic lapse rate, but less than the moist adiabatic lapse rate.

  3. An atmosphere in which the lapse rate is equal to the dry adiabatic lapse rate.

  4. An atmosphere in which the lapse rate is not related to the dry adiabatic lapse rate.

Show answer
Correct Option: A
Explanation:

A conditionally unstable atmosphere is an atmosphere in which the lapse rate is less than the dry adiabatic lapse rate, but greater than the moist adiabatic lapse rate.

What is the role of instability in convection?

  1. It promotes convection.

  2. It inhibits convection.

  3. It has no effect on convection.

  4. It is not related to convection.

Show answer
Correct Option: A
Explanation:

Instability promotes convection.

What are some of the factors that can cause instability in the atmosphere?

  1. Heating from the sun

  2. Cooling from the ground

  3. Evaporation of water

  4. Condensation of water

Show answer
Correct Option:
Explanation:

All of the above factors can cause instability in the atmosphere.

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