Published: Thu, July 12, 2018
Research | By Jody Lindsey

Iceberg breaks off glacier in Greenland

Iceberg breaks off glacier in Greenland

The team measured a four-mile area in middle Manhattan, NYC, to illustrate the monumental size of the iceberg.

The moment a giant iceberg measuring 4 miles (6 km) in length broke off from a glacier in Greenland, sending huge chunks of ice crashing into the sea, was captured on camera by a team of scientists. An illustrated overlay of the iceberg's dimensions is available here (Credit: Google Earth, Courtesy of Denise Holland): http://bit.ly/2z8cctk.

"Knowing how and in what ways icebergs calve is important for simulations because they ultimately determine global sea-level rise", said Denise Holland.

He adds that the more they understand what is happening means that they can create a more accurate simulation to predict and plan for climate change.

The event, which began at 11:30 p.m. local time on June 22, unfolded over 30 minutes, but the footage is sped up so the calving happens in just 90 seconds, according to a statement released by the researchers.

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Holland pointed out that the most devastating effect of icebergs floating away from glaciers is that there isn't and there won't be (at least in the next few decades) a way to put back glaciers together, he stated "This process is very violent, very dramatic, and very one-way", he says.

The video shows a tabular (wide and flat) iceberg separate, then travel down the fjord where it smashes into another iceberg. It may also offer a chance to study iceberg calving.

"Global sea-level rise is both undeniable and consequential", said David Holland, a mathematics professor at New York University.

Sea levels are rising and one of the culprits is the loss of ice from glaciers and ice sheets, victims of a warming planet.

The research team is now studying the forces behind sea-level rise-a development that has concerned scientists in recent decades because it points to the possibility of global disruptions due to climate change-under a grant from the National Science Foundation. The research is focused on the Thwaites Glacier.

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