Researchers film glacier calving massive iceberg in Greenland

Google Earth  Denise Holland

Raw Video: NYU scientists capture video of a four-mile iceberg breaking away from a glacier in Greenland.

So far, the Thwaites Glacier, a part of the Western Antarctic Ice Sheet that has already drained a mass of water that is roughly the size of Great Britain or the state of Florida, has accounted for approximately 4 percent of global sea-level rise -an amount that has doubled since the mid-1990s.

June 22 at 11:30 local time was lifted chip of ice.

The remarkable timelapse footage of the phenomenon, also known as calving (the breaking off of large blocks of ice from a glacier), condensed the 30 minute process to just 90 seconds. "By capturing how it unfolds, we can see, first-hand, its breath-taking significance".

Scientists argue that this phenomenon not only attractive, but also causes an increase in water level in the sea.

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While it's hard to get a sense of scale from the camera's wide-angle view of the separating iceberg, the berg is so big that it could partially cover the island of Manhattan, extending from the lower tip of New York City into Midtown, according to the statement.

The impact causes the first to break up and flip over.

The video shows a wide and flat iceberg split and moves away from the glacier. "The better we understand what is happening, the more accurate the simulation we can create to predict and plan for climate change", said David Holland. Meanwhile, smaller pinnacle icebergs, which are tall and thin, can be seen calving off and flipping over. Such events could help researchers understand how glaciers will respond to natural variability and human-induced changes.

In 2017, scientists estimated that a collapse of the entire West Antarctic Ice Sheet, which is two-and-a-half miles thick and about as large as Texas, would raise global sea levels by 10 feet-inundating coastal cities around the world.

Understanding how calving events take place is, the researchers say, important for developing simulations for sea-level rise brought about by climate change.

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