immense glacier melts in Greenland / The Aragüeño / Photo: File Up to 45 centimeters could increase global sea level due to glacier found in northeastern Greenland, hook and crumbling in the North Atlantic Ocean.
The glacier called Zachariae Isstrom loses 5,000 million tons of mass per year, although in 2012 it entered a phase of decline, according he published the journal “Science”.
“The northern Greenland glaciers are rapidly changing -apunta Jeremie Mouginot lead author, research assistant in the Department of Earth System Science at the University of California, Irvine, United States. The shape and Isstrom Zachariae dynamics have changed dramatically in recent years. The ice is breaking up and throwing high volumes of icebergs into the ocean, which will result in sea level rise in the coming decades ” .
The research team used data from aerial surveys and satellite observations acquired by various international space agencies. Highly sensitive systems monitored and recorded changes in shape, size and position of glacial ice for long periods of time, providing precise data on the state of the polar regions of the Earth.
The scientists determined that the Zachariae bottom of Isstrom is rapidly eroding the warmer ocean water mixed with increasing amounts of meltwater from the surface of the ice. “The ocean warming has probably played an important role in triggering the withdrawal [glacier] He points Mouginot- but we need more oceanographic observations in this critical sector of Greenland to determine their future.”
” Zachariae Isstrom being hit above and below, “warns lead author Eric Rignot, professor at UCI. “The top of the glacier is melting as a result of decades of steadily increasing air temperature, while its lower part is compromised by the currents that carry water from the warmer ocean and glacier is breaking into pieces and retreating to deeper ground “.
Nioghalvfjerdsfjorden also is melting rapidly, but is receding at a slower pace because it is protected by a hill inland. The two glaciers represent 12 percent of the Greenland ice sheet and increase global sea levels by more than 39 inches (nearly one meter) if fully collapse
Via:. Agencies
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