What is the name of the phenomenon where the polar vortex splits or weakens, allowing cold air to move southward?
A. Sudden stratospheric cooling
B. Polar vortex collapse
C. Polar amplification
D. Sudden stratospheric warming
Answer: Option D
Solution (By JKExamLibrary)
Sudden stratospheric warming (SSW) is a phenomenon where the polar vortex weakens or splits due to a rapid increase in stratospheric temperatures, often leading to cold air outbreaks in the mid-latitudes.
Explanation:
The Western Ghats receive high rainfall during the Southwest Monsoon due to the orographic effect, with the moist winds rising over the mountains.
Explanation:
San Francisco experiences advection fog when warm, moist air from the Pacific moves over the cold California Current, cooling and condensing to form fog.
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