Multiple Choice Questions on With reference to Indian Ocean Dipole IOD consider following statements A positive IOD brings below ........... for UPSC Civil Services Examination (General Studies) Preparation

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Multiple Choice Questions

With reference to Indian Ocean Dipole IOD consider following statements A positive IOD brings below ...........

Geography Monsoons and Climate in India
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    With reference to Indian Ocean Dipole (IOD), consider following statements

    1. A positive IOD brings below-average winter-spring rainfall to southern and central Australia.
    2. Negative IOD refers to the warmer western basin of the Indian Ocean as compared to the eastern basin.

    Select the correct statement.

    1 only

    Correct Answer

    2 only

    Incorrect Answer

    Both

    Incorrect Answer

    None

    Incorrect Answer
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    Explanation:
    • A positive phase sees greater-than-average sea-surface temperatures and greater precipitation in the western Indian Ocean region, with a corresponding cooling of waters in the eastern Indian Ocean—which tends to cause droughts in adjacent land areas of Indonesia and Australia. Hence statement 1st is correct.
    • The negative phase of the IOD brings about the opposite conditions, with warmer water and greater precipitation in the eastern Indian Ocean, and cooler and drier conditions in the west. Hence statement 2nd is incorrect.

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