Scientists claim to have identified a potential crash site of the Malaysia Airlines Flight MH370 using a new mathematical approach to analyse how debris moves around the ocean.
The 2014 disappearance of flight MH370 remains ones of the biggest mysteries in aviation.
Over USD 150 million has been spent so far to identify where the plane carrying 239 passengers crashed into the Indian Ocean, with no success.
An international team of researchers, including those from the University of Miami in the US, used what are known as Markov chain models to narrow down a potential crash location substantially north of the region where most search efforts have concentrated.
A Markov chain model predicts the behaviour of complicated systems by determining the probability of each outcome from the current state of what is being studied.
They have been used to power Google search algorithms and model financial markets.
In the study, published in the journal Chaos, the group used data from the Global Drifters Program, a publicly available dataset that uses satellites to track spherical buoys as the ocean's currents, waves and wind push them along paths over time.
In true Markovian fashion, each aimless buoy's next turn is an independent event from every other movement it has made in the past, researchers said.
The buoys were then placed on a grid with more than 3,000 virtual squares to simulate where plane debris would float to.
"Surprisingly, after more than three years, there is only a handful of confirmed debris recovered from the airplane," said Philippe Miron from University of Miami.
"This increases the errors of the model," said Miron, the lead author on the paper based on the research.
Seasonal variation in the Indian Ocean also required the team to develop three separate models to accurately predict debris movement during the protracted search effort.
"The monsoon in the Indian Ocean has important effects on the circulation of the region," Miron said in a statement.
After the analysis, the team's estimated search area was from 33 to 17 degrees south latitude along the arc of the last satellite to contact the downed plane, whose northern edge has remained largely unscrutinised.
Miron said he hopes the group's approach will encourage future efforts to deploy more trackable devices in the ocean to provide more data to solve similarly vexing problems.
He looks to use mathematical models to further understand how drifting objects move in the ocean, including the flow of hydrocarbons following undersea oil spills.
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