Indi Ocean El Nino
- June 28, 2020
- Posted by: admin1
- Category: DPN Topics
By studying microscopic zooplankton called foraminifera, researches had published a paper which first found evidence from the past of an Indian Ocean El Nino
- The report speaks about Last Glacial Maximum which existed about 19,000-21,000 years ago, in which ice-sheets covered North America and Eurasia, and sea-levels were much lower, with Adam’s Bridge exposed so that the Indian subcontinent and Sri Lanka were contiguous.
- Researchers analysed simulations of this past climate and predicted that the ongoing climate change could reawaken an ancient climate pattern of the Indian Ocean.
- They find phenomenon which could be similar to the El Niño phenomenon of the Pacific Ocean bringing more frequent and devastating floods and drought to several densely-populated countries around the Indian Ocean region.
- If current warming trends continue, this new Indian Ocean El Niño could emerge as early as 2050.
- Indian Ocean has the capacity to harbour much larger climate variability than observed during the last few decades or a century.
- Under present-day conditions, changes in the Indian Ocean Dipole and the El Niño–Southern Oscillation strongly affect Indian Monsoon variability from year to year.
- If the hypothesis emerges in the near future, it will pose another source of uncertainty in rainfall prediction and will likely amplify swings in monsoon rainfall.