Antarctica DISCOVERY: Huge hole opens up and NO ONE knows why

A Giant Mysterious Hole Has Emerged In Antarctica And Scientists Still Don't Know The Reason

A giant hole has opened up in Antarctica that could possibly be as big as the state of ME (91,646 km²) and Lake Superior (82,103 km²). While polynyas are not uncommon in the Arctic and Antarctica, they usually only form near the coast. Earther. Retrieved from https://earther.com/theres-an-enormousmysterious-hole-in-antarcticas-sea. Scientists are now investigating to know how it was formed.

"This is hundreds of kilometres from the ice edge". These areas of open water surrounded by sea ice are known to play a crucial role in the formation of new sea ice and deep water.

A hole the size of ME has formed in the ice in Antarctica's Weddell Sea, and scientists have no concrete theory as to why.

This cycle could repeat for the rest of the winter, Kent Moore, a professor of physics at the University of Toronto told CBC's "As It Happens." Scientists measured that the huge sea ice hole or polynya is nearly 80,000 square kilometers at its peak- a little bigger than New Brunswick and a bit smaller than the island of Newfoundland. It went away for four decades until it reopened for a few weeks a year ago.

The unusual occurrence has left scientists scratching their heads and unable to explain the odd phenomenon.

The going theory, Moore said, is that ocean currents are lifting warmer waters from the ocean's depths up to the surface, where it's melting the ice.

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"To our great surprise, it came back this year even larger than last year", Moore said.

Blaming climate change for this giant hole is one alternative that the scientists have but according to Moore, that would be a premature thing.

Sea ice and clouds blanket the Weddell Sea around Antarctica in this satellite image from September 25, 2017. The salt increases the density of the surface water, making the surface water heavier than the water below, causing it to sink.

Polynyas allow heat to escape the ocean, cooling the top layer of water as it becomes colder and denser - allowing more warm water to rise and keep the hole open.

A MASSIVE hole the size of IRELAND has been spotted in the ice near Antarctica, baffling scientists.

Despite not knowing why it is opening and closing, scientists hope to use it to learn more about climate change. "The better we understand these natural processes, the better we can identify the anthropogenic impact on the climate system", said Mojib Latif, from the GEOMAR Helmholtz Center for Ocean Research Kiel, who is part of a team that studies the Weddell polynya.

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