New Study Boosts Understanding Of How Ocean Melts Antarctic Ice Sheet

Credit: Eurasia Review- Published 2 weeks ago
An innovative use of instruments that measure the ocean near Antarctica has helped Australian scientists to get a clearer picture of how the ocean is melting the Antarctic ice sheet.

Until now, most measurements in Antarctica were made during summer, leaving winter conditions, when the sea freezes over with ice, largely...

Credit: Rumble Studio
Published 2 weeks ago -  02:30
Massive Iceberg Crashes Into Sea In Diskobay, Greenland
Check out this stunning video from Disko Bay, Greenland of an iceberg breaking apart and falling into the water. Amazing! Photographer Alexander Perov in the year November 2015, closely captured the amazing moment of a 160 feet tall iceberg collapsing off the west coast of Greenland in Disko Bay recently, but the awe soon turned on to fear as the cracking sets off like tsunami waves. The boat team had to speed off to avoid the endangerment of being devoured by the waves. β€œIt was unexpected. We were just 3 people on board on a small boat and we would not generally approach an iceberg so close, less than a hundred meters away,” the Russian photographer write on social media. The term "iceberg" refers to chunks of ice larger than five meters (sixteen feet) across. Icebergs are constructing of ice that creates on land and float in a lake or in oceans. Icebergs come in all sizes and shapes, from cube-sized chunks to the size of a small country. The cold waters surrounding of Antarctica and the North Atlantic are home to most of the icebergs on Earth. When an iceberg reaches hot waters, the new weather attacks it from all the sides. On the iceberg surface, hot air melts snow and ice into pools called melt ponds that can trickle through the widening cracks and through the iceberg. At the same time, hot water laps at the iceberg edges, melting the ice and causing chunks of ice to break off. On the underside, hot waters melt the iceberg from the bottom up. Every year thousands of icebergs venture south past New found land and Labrador. The majority of icebergs in the region are calved glaciers from western Greenland (Denmark). The remainder is calved glaciers from islands in Canada's High Arctic. Greenland, the world’s biggest island, appears to have hit a tipping point around 2002-2003 when the ice loss rapidly accelerated, said lead author Michael Bevis, a geoscientist at Ohio State University USA. By 2012 the annual ice loss was β€œunprecedented” at nearly four times the rate in 2003, Bevis said in a TV interview. Much of this new accelerated ice melt came from southwest Greenland, a part of the island that had not been known to be losing ice that rapidly. Previously, the scientific focus was on Greenland's southeast and northwest regions, where large glaciers stream iceberg-sized chunks of ice into the Atlantic Ocean. If you like the video please share it with your loved ones.

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