What is the name of the phenomenon where the wind direction changes clockwise with altitude in the Northern Hemisphere? MCQ with Answer and Explanation
What is the name of the phenomenon where the wind direction changes clockwise with altitude in the Northern Hemisphere?
A. Wind shear
B. Wind veering
C. Wind gradient
D. Wind backing
Answer: Option B
Solution (By JKSSB Mock Tests)
Wind veering is a clockwise change in wind direction with altitude in the Northern Hemisphere (e.g., from south to west). Wind backing is a counterclockwise change. Veering typically indicates warm air advection.
Explanation:
Tropical cyclones form in the tropics over warm ocean waters and are characterized by a low-pressure center, strong winds, and heavy rain.
Explanation:
A positive PNA phase is associated with warmer than normal temperatures in the Pacific Northwest and colder than normal temperatures in the southeastern United States, with a ridge over western North America.
Explanation:
A temperature inversion is a reversal of the normal temperature gradient in the troposphere, where temperature increases with altitude instead of decreasing. This traps pollutants and can cause fog and smog.
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