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Global Winds

Atmospheric Circulation

QuestionAnswer
doldrums a zone of low pressure at the equator where the trade wind systems meet
horse latitudes subtropical high-pressure zones with weak and variable winds
jet streams narrow bands of strong winds that blow in the upper troposphere
subtropical jet streams narrow bands of winds formed when warm equatorial air meets the cooler air of the middle latitudes
polar jet streams bands of winds formed as a result of density differences between cold polar air and warmer air of middle latitudes
Westerlies the prevailing winds that blow across the United States
What causes the movement of air worldwide? pressure differences
In what pattern does air near Earth's surface generally flow? Poles to the Equator
Why does air near Earth's surface flow from the poles to the equator? air moves from high pressure regions to low pressure regions
The circulation of the atmosphere and of the oceans are affected by the rotation of Earth on its axis
Earth's rotation causes the diameter to be greatest through the equator (oblate spheroid shape)
Why does air follow a curved path? because it moves faster that the land underneath which causes the Coriolis Effect
What are the 3 looping patterns of air flow in each hemisphere called? convection cells
The prevailing winds that blow from east to west from 30 degrees latitude to the equator in both hemispheres trade winds
In the northern hemispheres, trade winds flow from the northeast
The prevailing winds that blow from west to east through the continental USA are the westerlies
What are the prevailing winds that blow from east to west between 60 and 90 degrees in both hemispheres? the polar easterlies
Created by: Amatulli Science
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