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LMS Ch 22.3 DR
Atmospheric Circulation Directed Reading
| Question | Answer |
|---|---|
| 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. |