earths atmospheric circulation

Question 1

Global Atmospheric Circulation

Answer 1

The worldwide movement of air in the Earth’s atmosphere, driven by the unequal heating of the Earth’s surface by the sun.

Question 2

Solar Heating:

Answer 2

Global atmospheric circulation is primarily a result of variations in solar heating. The equator receives more direct sunlight than the poles, creating temperature differences.

Question 3

Hadley Cells

Answer 3

Near the equator, warm air rises, creating low pressure. As it ascends, it cools, and some of it moves towards the poles at high altitudes, forming the Hadley Cells.

Question 4

Polar Cells

Answer 4

Near the poles, the cold air descends, creating high pressure. This air moves towards lower latitudes, forming the Polar Cells.

Question 5

Ferrel Cells

Answer 5

At mid-latitudes, the descending air from the Hadley Cells creates high pressure. This air moves towards the poles at the surface, forming the Ferrel Cells.

Question 6

Surface Winds

Answer 6

The combination of these cells creates prevailing surface winds, such as the trade winds, westerlies, and polar easterlies, influencing weather patterns globally.