Author Question: Explain the conditions that prevent Asian monsoons in winter and allow them in summer. What will ... (Read 72 times)

jake

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Explain the conditions that prevent Asian monsoons in winter and allow them in summer.
 
  What will be an ideal response?

Question 2

When mountains cool rapidly at night, air flows into valleys, creating a ________.
 
  Fill in the blank(s) with the appropriate word(s).



Jsherida

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Answer to Question 1

Answer: During January the winds generally flow southwestward toward the Indian Ocean from the southern Himalayas. The descending air is compressed and warmed, leading to dry conditions over most of India and Southeast Asia. The situation changes abruptly during late spring or early summer, when heating of the continent contributes to a reversal in the wind direction at both low and high levels. Aloft is an easterly jet stream, with often divergent motion promoting uplift. At low levels, onshore flow occurs, bringing warm, moist, and unstable air from the Indian Ocean to the southern part of the continent, where it rises orographically and by convection as it passes over the hot surface. Cloud formation is further enhanced by a much stronger orographic effect as the air ascends the southern slopes of the Himalayas. A steady flow of warm water is supplied by the clockwise ocean gyre that establishes itself in the summer months.

Answer to Question 2

Answer: mountain breeze



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