Lesson 1 Flashcards
(19 cards)
What are global winds?
Large-scale winds that blow steadily from specific directions over long distances due to Earth’s rotation and uneven heating.
What causes global wind patterns?
Unequal heating of Earth’s surface and the Coriolis effect from Earth’s rotation.
Name three main global wind belts.
Trade Winds, Westerlies, Polar Easterlies.
Where do trade winds blow?
From east to west between the equator and 30° latitude in both hemispheres.
What are westerlies?
Winds blowing from west to east between 30° and 60° latitude.
What are polar easterlies?
Cold winds blowing from east to west near the poles.
What are prevailing winds?
Winds that blow consistently from the same direction in a region.
What are seasonal winds?
Winds that change direction with the seasons, like monsoons.
What is a monsoon?
A seasonal wind bringing rain in summer and dry weather in winter, common in South Asia.
What are local winds?
Winds blowing over short distances due to local temperature differences.
What causes local winds?
Differences in temperature between land and water or between mountains and valleys.
What is a sea breeze?
A breeze from sea to land during the day.
What is a land breeze?
A breeze from land to sea at night.
What is a valley breeze?
A breeze from the valley up a mountain during the day.
What is a mountain breeze?
A breeze blowing down the mountain into the valley at night.
What is high pressure?
A region where cool air sinks, bringing clear and dry weather.
What is low pressure?
A region where warm air rises, bringing clouds and precipitation.
How do winds move in a high-pressure system?
Outward and clockwise in the Northern Hemisphere.
How do winds move in a low-pressure system?
Inward and counterclockwise in the Northern Hemisphere.
