IC Joshi, Aviation Meteorology
Air Masses Fronts and Western Disturbances: DGCA Aviation Meteorology questions
An air mass takes its temperature and moisture from the region it lay over, and a front is the boundary where two of them meet. Western disturbances carry frontal weather across north India in winter.
Across 30 questions you meet air mass labels, the cloud and weather sequence at warm and cold fronts, occlusions, line squalls and the origin and track of western disturbances. Exam sessions have included 20 of these frontal questions.
Air masses are named maritime or continental first, then by source, such as polar or tropical. In the Northern Hemisphere the wind veers as a warm or a cold front passes. Freezing rain falls ahead of a warm front, where rain from the warm air aloft drops into sub zero air beneath.
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Question 1 of 5
The airmass which originates at sea in high Latitudes is called
Question 2 of 5
The airmass which originates over equatorial region is
Question 3 of 5
If the advancing cold front is colder than the cool air mass of the warm front, the advancing cold front undercuts and lifts both the warm and cool air masses of the warm front. This is
Question 4 of 5
The airmass which originated over land area located in polar region is:
Question 5 of 5
If a warm airmass overtakes a cold air mass, it is called
25 more questions in this chapter
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