Consider the following statements regarding El Nino effect on Indian monsoon: 1. The surface temperature goes up in the Southern Pacific Ocean and there is dificient rainfall in India. 2. The Walker Circulation shifts Eastward from its normal position and

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Q: 88 (NDA-II/2012)
Consider the following statements regarding El Nino effect on Indian monsoon:
1. The surface temperature goes up in the Southern Pacific Ocean and there is dificient rainfall in India.
2. The Walker Circulation shifts Eastward from its normal position and reduces monsoon rainfall in India.
Which of the statement(s) given above is/are correct?

question_subject: 

Geography

question_exam: 

NDA-II

stats: 

0,14,93,14,18,66,9

keywords: 

{'el nino effect': [0, 0, 0, 2], 'monsoon rainfall': [0, 0, 1, 0], 'indian monsoon': [0, 0, 0, 2], 'dificient rainfall': [0, 0, 0, 1], 'walker circulation shifts': [0, 0, 0, 1], 'southern pacific ocean': [0, 0, 0, 1], 'india': [8, 1, 7, 13]}

The correct answer is option 1 - Only 1.

Explanation:

1. The first statement is correct. During El Nino, there is a rise in the surface temperature of the Southern Pacific Ocean. This increase in temperature disrupts the normal patterns of atmospheric circulation and weather systems. As a result, it leads to deficient rainfall in India during the monsoon season.

2. The second statement is incorrect. The Walker Circulation is a set of atmospheric circulation cells that helps drive the Indian monsoon. During El Nino, the Walker Circulation weakens rather than shifts eastward. This weakening of the Walker Circulation affects the normal rainfall patterns in the Indian subcontinent, leading to a deficit in monsoon rainfall.

Therefore, only statement 1 is correct, and statement 2 is incorrect.

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