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Meteorology > Precipitation > Flashcards

Precipitation Flashcards

1
Q

What happens to an engine when the engine engulfs too much water?

A

Engine flame out.

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2
Q

What is the average diameter of a raindrop?

A

2000 um

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3
Q

What are the two processes of small droplets growing to precipitation?

A

Ice crystal process - coalescence process

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4
Q

What is the Bergeron - findeisen ?

A

Bloody freezing ! Ice crystal process.

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5
Q

How to water droplets grow in size in the coalescence theory?

A

Collisions.

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6
Q

Whats a hydrometor?

A

Moving water particles.

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7
Q

Whats a suspended particle example?

A

Cloud - fog - mist

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8
Q

Whats a falling particle example?

A

Drizzle - rain - snow - hail

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9
Q

What is the diameter of drizzle?

A

0.5mm

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10
Q

What type of cloud does drizzle fall from?

A

Stratus.

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11
Q

What may happen to supercooled rain when it imapcts a surface?

A

Freezes.

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12
Q

What are snow grains?

A

Small white particles of ice.

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13
Q

Whats another word for snow pellets is blank hail.

A

Soft hail

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14
Q

What do snow pellets fall from?

A

Cumulus or cb

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15
Q

What letters are used for hail?

A

GR

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16
Q

What are the letters for snow pellets?

A

GS

17
Q

What is the intermediate stage between the snow pellet and the hailstone?

A

Small hail.

18
Q

Whats the diameter of ice pellets?

A

Less that 5mm

19
Q

How are ice pellets formed?

A

Snowflakes melt then re freeze.

20
Q

What is diamond dust?

A

Falls from a clear sky as ice crystals.

21
Q

What is virga?

A

When ice or rain evaporates before it hits the ground.

22
Q

What is the visibility in drizzle?

A

Less than 500m

23
Q

Whats the visibility in heavy snow?

A

50m

24
Q

Whats the visibility in heavy snow?

A

50m

25
Q

Whats the visibility for blowing snow?

A

1m

26
Q

What does FU sound for?

A

Smoke.

27
Q

What does VA stand for?

A

Volcanic ash.

28
Q

What does PR stand for?

A

Partial.

29
Q

What does BC stand for?

A

Patches.

30
Q

What does BLSN mean?

A

Blowing

Meteorology (22 decks)

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