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LMS Ch 22.3 DR

Atmospheric Circulation Directed Reading

QuestionAnswer
The circulation of the atmosphere and of the oceans is affected by?? The rotation of Earth on its axis.
Earth’s rotation causes its diameter to be?? Greatest through the equator.
What are the three looping patterns of air flow in each hemisphere called?? Convection Cells.
The prevailing winds that blow from east to west from 30° latitude to the equator in both hemispheres are called the?? Trade Winds.
In the Northern Hemisphere, trade winds flow from the?? Northeast.
From what direction do trade winds flow in the Southern Hemisphere?? The Southeast.
What are the prevailing winds that blow from east to west between 60° and 90° in both hemispheres?? The polar easterlies.
A stormy region created where the polar easterlies meet warm air from the westerlies is called a?? Front.
The sun’s rays shift northward and southward during the changing seasons of the year causing a shift in the position of?? Pressure Belts and Wind Belts.
Air movement influenced by local conditions and local temperature variations often cause which are not part of the global wind belts?? Local Winds.
Gentle winds that extend over distances of less than 100 km are called?? Breezes.
As warm air above land rises and cool air from above water moves in to replace it, a cool wind moving from water to land, called a forms in the afternoon?? Sea Breeze.
Overnight, the land offshore cools more rapidly than the water does, and a sea breeze is replaced by a which flows from the cool land toward the warmer water?? Land Breeze.
During the day in mountainous regions, a gentle breeze called a forms when warm air from the valleys moves upslope?? Valley Vreeze.
At night in the mountains, cool air descends from the peaks to the valleys, creating a?? Mountain Breeze.
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 the middle latitudes.
Created by: ericyonggyuhong