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 :

Statement 2 is correct because a positive IOD can counteract the deficit rainfall typically caused by El Nino, thereby mitigating its negative impact on the Indian monsoon. Statement 1 is incorrect because the IOD is defined by the sea surface temperature difference between the Western and Eastern **Indian Ocean**, whereas the Pacific Ocean is associated with the ENSO phenomenon. The core concept tested is the geographical definition of the Indian Ocean Dipole and its interaction with global climatic oscillations.