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UPSC CSE 2020 · PYQ · Climate · medium

With reference to Ocean Mean Temperature (OMT), which of the following statements is/are correct? 1. OMT is measured up to a depth of 26°C isotherm which is 129 meters in the south-western Indian Ocean during January - March. 2. OMT collected during January - March can be used in assessing whether the amount of rainfall in monsoon will be less or more than a certain long-term mean. Which of the statements given above is/are correct?

  1. A.Neither 1 nor 2
  2. B.2 only
  3. C.Both 1 and 2✓ Correct
  4. D.1 only

Explanation

OMT is measured up to the 26°C isotherm depth (about 129 m in south-western Indian Ocean during Jan-Mar) and is used as a better predictor of the Indian summer monsoon than SST alone.
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