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theage A massive whirlpool has developed off the coast of NSW, dragging down the sea surface by almost a metre, diverting a mighty ocean current and chilling Sydney beachgoers.
The mysterious whirlpool is 200 kilometres across and 1000 metres deep, reaching the ocean floor, CSIRO oceanographers say. The centre is 100 kilometres from the coast and could stay there for several months.
And another eddy of similar proportions is sitting further off the coast.
"The eddies in this part of the world are very hard to predict," Dr Griffin said.
They naturally drift westwards but keep bumping up against the shore and may be re-energised by other tidal and weather patterns, he said.
The whirlpool will today be discussed in Hobart at a meeting of 200 Australian, European and US scientists working with satellite images to map water temperatures.
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