What meteorological phenomenon causes morning fog to blanket coastal UAE cities frequently during autumn and winter months?
Answer and explanation
Correct answer: C. Radiational cooling of moist coastal air under clear nocturnal skies
- Step 1: Examine the thermodynamic conditions producing dense coastal radiation and advection fog.
- Step 2: Warm, humid maritime air from the Gulf blows inland over land that cools rapidly after sunset, triggering condensation under a low atmospheric inversion layer.
Answer
Radiational cooling of moist coastal air under clear nocturnal skies.
Why not the others: No active volcanoes exist in the region; glaciers never enter the tropical Arabian Gulf; jet streams operate at 9-12 km altitude, not sea level.
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