What is the name of the large-scale atmospheric circulation cell over the Arctic region?
A. Polar cell
B. Hadley cell
C. Ferrel cell
D. Walker cell
Answer: Option A
Solution (By JKExamLibrary)
The Polar cell is the large-scale atmospheric circulation that occurs in the polar regions. Cold, dense air sinks at the poles and flows equatorward, rising again at about 60° latitude.
Explanation:
The northeastern United States is influenced by polar continental air masses from Canada in winter, bringing cold, dry, and stable conditions.
Explanation:
The Pacific Decadal Oscillation is a long-term climate pattern where sea surface temperatures in the Pacific Ocean are cooler than normal for a period of 10-30 years.
Explanation:
The pressure gradient force is directly proportional to the wind speed. A stronger pressure gradient (closer isobars) results in stronger winds.
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