With reference to ‘Indian Ocean Dipole (IOD) sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?
1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.
2. An IOD phenomenon can influence an El Nino’s impact on the monsoon.
Select the correct answer using the code given below:
1 only
2 only
Both 1 and 2
Neither 1 nor 2
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC IAS – 2017
– Statement 2 is correct. The IOD is a significant climate driver for countries around the Indian Ocean, including influencing the Indian monsoon. IOD and ENSO are two separate climate phenomena, but they can interact and influence each other’s impact on regional weather patterns, including the Indian monsoon. A positive IOD, for instance, is often associated with a good monsoon in India and can sometimes counteract the negative impact of an El Niño event.