Subtropical deserts are more closely related to which global circulation process?
Answer and explanation
Correct answer: Descending dry air of the Hadley cell
Near the subtropical latitudes, air that rose in the equatorial part of the Hadley cell descends. Descending air is compressed and warms adiabatically, which lowers its relative humidity and inhibits cloud development and rainfall. The resulting persistent subtropical high-pressure belts are therefore associated with dry conditions and many of the world's major desert regions. Local ocean currents and relief can strengthen or modify this dryness.
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What is the correct answer to this question?
Descending dry air of the Hadley cell
Why is this the correct answer?
Near the subtropical latitudes, air that rose in the equatorial part of the Hadley cell descends. Descending air is compressed and warms adiabatically, which lowers its relative humidity and inhibits cloud development and rainfall. The resulting persistent subtropical high-pressure belts are therefore associated with dry conditions and many of the world's major desert regions. Local ocean currents and relief can strengthen or modify this dryness.
Which subject and chapter does this question cover?
This is a Class 12 Geography question. Chapter: Atmospheric Circulation and Weather Systems.
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