Geography • Physical GeographyMedium
Which of the following conditions is most favorable for the occurrence of a surface temperature inversion near the Earth's surface?
A. Short winter night, cloudy sky, and high wind speed
B. Long winter night, clear sky, and calm air✓ Correct Answer
C. Long summer day, cloudy sky, and strong convection currents
D. Short summer night, clear sky, and high humidity
💡 Solution & Explanation
A surface temperature inversion develops most intensely during long winter nights accompanied by clear skies and complete calm, because these conditions maximize outgoing terrestrial radiation and minimize air mixing. Cloud cover or high winds would trap outgoing heat or mechanically mix the lower atmosphere, preventing the formation of a stable inversion layer. This atmospheric state traps pollutants and fog close to the ground. Radiation inversions are a common winter phenomenon in continental interior regions.
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