Climate change is making an impact from a molecule to atmosphere. The pattern of El Nino has changed dramatically in recent years, according to the first seasonal record.
This new finding will arguably alter our understanding of the El Nino phenomenon. Changes to El Nino will influence patterns of precipitation and temperature extremes in Australia, Southeast Asia and the Americas.
Paper published in Nature Geosciences today, fills this gap using coral records to reconstruct El Nino event types for the past 400 years. El Nino happens when the seawater temperature rises in surface waters of the tropical Pacific Ocean.
During strong El Nino events, Australia and Asia regions often receive much less rainfall than during normal years and opposite happens in western regions which may massive floods.
Before the finish of the twentieth century, however, our exploration demonstrates an unexpected change: a sharp increment of Central Pacific El Nino occasions ends up obvious. In the meantime, the quantity of ordinary Eastern Pacific occasions remained generally low, yet the three latest Eastern-type occasions (in 1982-83, 1997-98 and 2015-16) were bizarrely solid.
The Pacific Ocean is as of now waiting in an El Nino state. With these bewildering occasions, numerous individuals around the globe are pondering what outrageous climate will be dispensed upon them in the months and years to come.
Our new record opens a way to comprehension past changes of El Nino, with suggestions for the future as well. Knowing how the various kinds of El Niño have unfurled in the past will mean we are better ready to demonstrate, foresee and plan for future El Ninos and their broad impacts.