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Flashcards in Wind Patterns Deck (23):
1

What is another name for the Intertropical Convergence Zone?

Doldrums

2

Between what latitudes do the doldrums occur?

5 degrees N to 5 degrees S

3

How are the winds in the Intertropical Convergence Zone characterized?

Calm

4

Between what latitudes do the Trade winds occur?

0 degrees to 30 degrees, N and S

5

Between what latitudes do the Westerlies occur?

30 degrees to 60 degrees, N and S

6

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

Trade winds

7

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

warm

8

What wind current blows irregularly east and north?

Polar Easterlies

9

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

Polar Easterlies

10

Hadley Cells are?

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

11

Where do Ferrel cells exist?

30 to 60 degrees N. and S. latitude

12

Where do Polar cells exist?

60 to 90 degrees N. and S. latitude

13

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

toward, high

14

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

subtropical highs

15

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

polar highs

16

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

away, low

17

The band of low pressure at the equator is called:

equatorial low

18

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

subpolar low

19

The Polar front is?

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

20

What is the Jet Stream?

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

21

Tropical cyclones are huge rotating masses of ____ pressure.

low

22

Hurricanes are measured on what scale?

Saffir-Simpson Scale

23

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

Polar Westerlies