Weather: Chapter 2, Section 3 Winds
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The horizontal movement of air from an area of high pressure to an area of low pressure
WHAT ARE WINDS CUASED BY?
Differences in air pressure
An instrument that measures wind speed
The increased cooling that wind can cause
Winds that blow over short distances
WHAT ARE LOCAL WINDS CUASED BY?
Unequal heating of the Earth's surface within a small area
Wind that blows from an ocean or lake onto land/sometimes called a lake breeze
The flow of air from land to a body of water
Winds that blow steadily from specific directions over long distances/also created by unequal heating of Earth's surface
The way Earth's rotation makes winds curve
WHAT ARE 3 MAJOR GLOBAL WIND BELTS?
- 1. Trading winds
- 2. Prevailing Westerlies
- 3. Polar Easterlies
Regions near the equator with little or no wind
Is the distance from the equator measured in degrees
30 Degrees north and south of the equator where air stops moving towards poles and sinks
Steady easterly winds
These winds play an important role in the US weather
When cold air near the poles sinks and flows back towards lower latitude
Bands of high speed winds about ten km above Earth's surface
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