Lecture 7; Producing precipitation

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Last updated 3:38 AM on 4/20/26
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9 Terms

1
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How do you saturate a air parcel?

  1. Cool the air so water vapor condensates

  2. Increase the vapor pressure

2
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How do you change air pressure?

  1. Absorbing energy

  2. Mixing warm and cold air (Convection)

  3. Phase changes (Condensing water vapor release latent heat to surrounding molecules)

3
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What is a diabatic process?

heat is removed or added from a system

4
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What is a adiabatic process?

Heat is not added or removed from the system

Involves changes in pressure

5
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What is a cloud condensation nuclei?

An object that attracts water vapor together

6
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How do raindrops get bigger?

  1. Diffusion

  2. Larger droplets fall and collide with smaller ones, coalescing into larger droplets

7
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Which increases faster as the radius of a raindrop increases/ Volume or surface area

Volume

8
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What is the relationship between volume and raindrop velocity?

As volume increases, velocity increases

9
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When does a raindrop fall?

When the terminal velocity is greater than the speed of the updrafts