Advancing Monsoon


 
 
Concept Explanation
 

Advancing Monsoon

Advancing Monsoon (The Rainy Season): The low pressure area over the Northern plains intensifies by mid-June and attracts the trade winds. These trade winds originate over the warm tropical ocean in the Southern hemisphere. After crossing equator, these blow in the South—West direction entering peninsula as South-West monsoon. They cover the entire sub-continent except extreme North-West in just over one month. Maximum rainfall due to these winds occurs in North-Eastern India (mainly Meghalaya and Assam) and the windward side of the Western Ghats (Thiruvananthapuram to Mumbai) as these winds bring abundant moisture to the sub-continent at a velocity of 30 kmph.

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Sample Questions
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Question : 1

Which one of the following causes rainfall in winter in north-western parts of India?

Right Option : B
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Question : 2

Name the three types of rain fall.

Right Option : C
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Question : 3

Consider the following statements:

  • a) Wet and dry spells during monsoons are related to the movement of monsoon troughs.
  • b) The axis of monsoon trough closer to plains causes heavy rainfall in Himalayan catchment areas causing floods in plains.

Which one of the following is correct?

Right Option : D
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