According to the Indian Ocean Dipole Index published by BOM on 15 September 2019, the current level of Positive Indian Ocean Dipole is approaching the level of 2015. The wild fire in Indonesia in year 2015 was among the worst haze episode that affecting most of the ASEAN countries.
Based on the IOD Index released by BON, the current IOD Index already passed 1 degree Celcius and approaching the similar level of 2015. The highest record in 2015 is 1.17 degree Celcius. The highest record of 2019 is 1.08 degree Celcius. Until 15 September 2019, it is still recorded at the high level of 1.02 degree Celcius.
More worrying is the data from the BOM Climate Modelling where the projected peak of IOD will be reaching 1.6 degree Celcius by October 2019, which could mean the severe wild fire and haze episode could be worst than 2015 level.
Indian Ocean Dipole outlooks
BOM, 17 September 2019