In 1921, J. Bjerknes and his co- authors published what came to be known as the polar front theory. Which one of the following statements is correct regarding this theory?
A) It was shown to be applicable only to winter storms in the Southern Hemisphere.
B) Although it was useful at the time, it is no longer a useful model.
C) The main features of the theory remain an important part of present- day meteorological thought.
D) The polar front theory was largely incorrect from the very beginning.

Question

Quizplus · Accepted Answer

The main features of the polar front theory, including the idea that atmospheric disturbances are associated with strong horizontal temperature gradients, remain an important part of modern meteorological thought. While the theory has been refined and expanded upon over the years, it is still considered to be a fundamental concept in understanding weather patterns. Option A is incorrect as the theory applies to both hemispheres and not just the Southern Hemisphere. Option B is incorrect as the polar front theory is still considered to be a useful model. Option D is incorrect as the theory was not largely incorrect from the beginning; it was a significant advancement in meteorological understanding at the time.