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Flashcards in Wind Patterns Deck (23)
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1
Q

What is another name for the Intertropical Convergence Zone?

A

Doldrums

2
Q

Between what latitudes do the doldrums occur?

A

5 degrees N to 5 degrees S

3
Q

How are the winds in the Intertropical Convergence Zone characterized?

A

Calm

4
Q

Between what latitudes do the Trade winds occur?

A

0 degrees to 30 degrees, N and S

5
Q

Between what latitudes do the Westerlies occur?

A

30 degrees to 60 degrees, N and S

6
Q

What wind current was named because it aided ships in long ocean journeys?

A

Trade winds

7
Q

Is it warm or cold air that rises around the equator?

A

warm

8
Q

What wind current blows irregularly east and north?

A

Polar Easterlies

9
Q

What wind current is found between 60 to 90 degrees N.?

A

Polar Easterlies

10
Q

Hadley Cells are?

A

Convection currents that cycle warm air from the equator to 30 degrees N. or S.

11
Q

Where do Ferrel cells exist?

A

30 to 60 degrees N. and S. latitude

12
Q

Where do Polar cells exist?

A

60 to 90 degrees N. and S. latitude

13
Q

A column of cool, dense air moves _____ the surface and creates _____ pressure.

A

toward, high

14
Q

The descending air at 30 degrees N. and S. latitude creates high pressure zones called what?

A

subtropical highs

15
Q

Descending air at the poles that create high pressure regions are called?

A

polar highs

16
Q

A column of warm, low density air goes ____ from the surface and creates ____ pressure.

A

away, low

17
Q

The band of low pressure at the equator is called:

A

equatorial low

18
Q

The bands of low pressure at 60 degrees N and S is called:

A

subpolar low

19
Q

The Polar front is?

A

The prevailing westerlies meeting the polar easterlies and polar westerlies at 60 degrees N. or S.

20
Q

What is the Jet Stream?

A

A narrow, fast moving, easterly flowing air mass, which exists above the mid-latitudes just below the top of the troposphere

21
Q

Tropical cyclones are huge rotating masses of ____ pressure.

A

low

22
Q

Hurricanes are measured on what scale?

A

Saffir-Simpson Scale

23
Q

What wind current is found between 60 to 90 degrees S.?

A

Polar Westerlies