A Large Hole Seems To Have Formed In The Antarctic Sea Ice

A Large Hole Seems To Have Formed In The Antarctic Sea Ice

Forty years after the first observation of the polynia in the sea, the Weddell did not open, and now it is the second year in a row that has opened.

While substantial holes in the icy surface of Antarctica called polynyas are not uncommon, they are generally confined to the coastal regions.

The gap, measuring about 80,000kmat the largest, was detected far from the edge of the ice last month (early September) when scientists were monitoring the area with satellite technology.

"In the depths of winter for more than a month, we've had this area of open water", Kent Moore, a professor of atmospheric physics at the University of Toronto Mississauga told National Geographic. The polynya was observed in the same region in the 1970's, then disappeared and appeared on a few weeks back previous year.

Describing the hole to Motherboard, Moore said, "It looks like you just punched a hole in the ice".

India in seventh heaven as Australia crumble in Ranchi
Kohli also said that he thought after restricting Australia to 118 for eight, the D/L par score would have been less than 40. Rohit Sharma (11) struck a six and a four to begin the innings well but was castled by Nathan Coulter-Nile (1-20).

Researchers from the Princeton-based Southern Ocean Carbon and Climate Observations and Modelling (SOCCOM) group are conducting a study of the polynya that seeks to answer numerous questions.

It's larger than The Netherlands, and almost the size of Lake Superior. It's not clear at this point if the ice hole is influenced in any way by climate change.

Many experts have said that what actually could have happened is that warm salt water from deep under the ice could have managed to squeeze its way through the colder layer of fresh water thus ultimately melting the layer of ice that covers it. Dr. Mojib Latif, head of the Research Division at GEOMAR, in a public statement. "This is like opening a pressure relief valve-the ocean then releases a surplus of heat to the atmosphere for several consecutive winters until the heat reservoir is exhausted", Latif said.

Simulated temperature development in the area of the polynya is illustrated above. Now we managed to collect a very large amount of data, the further analysis of which will help explain the processes responsible for raising the warm layers of sea water closer to the surface.

Moore says they are working to understand what is triggering the formation of these holes again after so many years. According to satellite imagery, it appeared in the same place as it did forty years ago.

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