Chari Pattiaratchi, from the University of Western Australia, said the debris had been located close to the 'Roaring Forties', where the wind created giant swells and waves.
''You may have debris at the surface but the bulk of the aircraft would be at the bottom of the ocean,'' he said. ''It's very deep down there, about five kilometres,'' said Professor Pattiaratchi.
''Trying to get something out from five kilometres in the roughest part of the world is going to be extreme,'' he said.
The currents in the area move from west to east.
''So if it has been in the water for about 10 days it would have drifted about 300 to 400 kilometres to the east toward Perth," said Professor Pattiaratchi.
The debris would likely have been travelling about one nautical mile per hour, or one knot. ''If it keeps going it'll go to the south of Perth or south of Australia,'' he said.
The roaring forties are located forty degrees south, where there was almost no land to slow down the winds. These create strong, high waves and swell, he said.
The currents extend right through the water column because the area is so deep.
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