What is the name of the phenomenon where there is a large-scale pattern of sea level pressure differences between the Aleutian Islands and the Pacific Northwest? MCQ with Answer and Explanation
What is the name of the phenomenon where there is a large-scale pattern of sea level pressure differences between the Aleutian Islands and the Pacific Northwest?
A. Madden-Julian Oscillation
B. Pacific-North American Pattern
C. Arctic Oscillation
D. North Atlantic Oscillation
Answer: Option B
Solution (By JKSSB Mock Tests)
The Pacific-North American (PNA) pattern is a climate pattern characterized by sea level pressure differences between the Aleutian Islands (Aleutian Low) and the Pacific Northwest, influencing the weather in North America.
Explanation:
The monsoon trough is located approximately at 20°N latitude during the monsoon season, extending from the Thar Desert to the Bay of Bengal.
Explanation:
Tamil Nadu receives a significant portion of its annual rainfall from the Northeast Monsoon (October-December), making it a crucial season for agriculture there.
Explanation:
The warm, dry summers of a Mediterranean climate are caused by the subtropical high-pressure belt shifting poleward during summer, bringing sinking dry air and stable conditions.
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