A negative phase of the Arctic Oscillation (AO) is associated with:
A. Warmer than normal temperatures in the Arctic
B. Cooler than normal temperatures in the Arctic
C. Lower than normal pressure over the Arctic
D. Higher than normal pressure over the Arctic
Answer: Option D
Solution (By JKExamLibrary)
A negative AO phase is characterized by higher than normal pressure over the Arctic and lower than normal pressure over the mid-latitudes. This allows cold Arctic air to spill southward, leading to colder winters in the mid-latitudes.
Explanation:
The El Niño-Southern Oscillation (ENSO) is a global-scale climate phenomenon that significantly influences the Indian monsoon, with El Niño often associated with weaker monsoons and La Niña with stronger monsoons.
Explanation:
The northeastern states, including Meghalaya, receive high rainfall due to the orographic lifting of the southwest monsoon winds by the Himalayas and the Eastern Ghats, causing heavy precipitation.
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