Lesson 304 Evolution Of Precipitation

Question 1

What are the two processes involved with the formation of precipitation? Describe.

Answer 1

Bergeron effect- water evaporates off a droplet in a cloud deposits on ice crystals in mid to high levels.
Collision process- particles collide creating larger particles

Question 2

What is the terminology associated with the collision process? Describe.
CAFA

Answer 2

Coalescence: collision of liquid drops to form larger particles
Aggregation: collision of solid particles to form larger particles
Fragmentation: breaking up of an ice crystal or large water droplet into smaller droplets.
Accretion: collision of solid and liquid particles to form larger particles

Question 3

Which cloud types are associated with stability? Instability?

Answer 3

Stable: ST, NS, AS, AC, SC (conditionally unstable), CS
Unstable: ACC, TCU, CB, CU,AC, CC.

Question 4

What type of precipitation falls from Stratiform cloud and cumuliform cloud?

Answer 4

Intermittent or continuous

Showery

Question 5

List the three factors that explain the intensity of precipitation
UCC

Answer 5

Updraft strength: assists in growing particles in cloud
Cloud water content: higher temperatures increase potential for water content
Cloud vertical thickness: greater thickness could favour greater intensities.