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Physical Geography > Tropical storms > Flashcards

Tropical storms Flashcards

1
Q

What is the environmental lapse rate?

A

(ELR): The decrease in temperature of the whole atmosphere with height

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2
Q

Which air type stores more air? High density or low density?

A

Lower density air stores less air
Higher density air stores more air

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3
Q

What is the rate for ELR?

A

100M/0.65c

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4
Q

What is Dry adiabatic lapse rate?

A

The decrease in temperature of air parcels with height. (DALR)

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5
Q

What is the DALR rate?

A

1c/100m

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6
Q

What is atmospheric stability?

A

Occurs when ELR cools more slowly than a rising air parcel DALR, which is cooling at a faster rate

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7
Q

What is atmospheric instability?

A

Occurs when an air parcel (DALR) cools more slowly than the atmosphere (ELR) which is cooling faster => produces unstable weather

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8
Q

What is conditional instability?

A

Occurs when ELR is lower than the DALR but higher than the SALR

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9
Q

What is saturated adiabatic lapse rate?

A

The saturated adiabatic lapse rate (SALR) is the rate at which rising saturated air cools

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10
Q

What are the types of rainfall?

A

Orographic, convectional, frontal

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11
Q

What are the types of fronts?

A

Warm front, occluded, cold

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12
Q

What is orographic rainfall?

A

Warming air rising and ascending over hills, cools , losing precipitation

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13
Q

What is convectional rainfall?

A

Warming and cooling of air, condenses, and cools , resulting in precipitation

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14
Q

What is an occluded front?

A

An occluded front is formed when a cold front catches up with a warm front. Warm air is forced up the surface

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15
Q

What is the Coriolis force?

A

The invisible force that appears to deflect the wind, due to the rotation of the wind

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16
Q

What is the eye?

A

The centre of the hurricane. Contains high pressure

17
Q

What is the eye-wall?

A

Surrounds the interior region

18
Q

What are hurricanes measured in?

A

Simpson hurricane wind-scale

19
Q

What is latent heat?

A

Latent heat, also called a phase change, is a powerful force in weather. When water transforms from gas to liquid or solid (or vise versa), it is called a phase change. The heat required to change phases is called latent heat

20
Q

Why is there no corilius force at the equator

A

The Coriolis force is zero at the equator because the Earth’s rotation doesn’t cause sideways deflection there.

21
Q

What is saturated air?

A

Maximum amount of water vapour that can be held

Physical Geography (6 decks)

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