Rectangular iceberg floating in Antarctica spotted by NASA

26 October, 2018, 14:18 | Author: Emilio Conner
  • Perfectly cubic pyrite crystals on marlstone. Image credits Carles Millan

Still, it's definitely a rare treat for scientists to capture images of such an angular iceberg just kind of chilling out in the ocean, and it's brought a lot of attention to the work that NASA is doing to monitor ice changes on the planet.

According to experts, this rectangular shaped iceberg is the result of a natural phenomenon.

We rarely see those ideal edges, he added, because of the "rough and tumble lives" of typical icebergs. Tabular icebergs, large slabs of ice with almost vertical sides and a flat top, unlike the jagged, chunks of ice we typically think of as icebergs, are formed when ice shelves become too large and sections of it calve, or split off. They're usually formed when breaking off from ice shelves; in this case, it likely came from the deteriorating Larsen C-the same shelf that saw a 2,200 square-mile, trillion-ton iceberg break away past year.

An iceberg recently spotted by NASA scientists looks like it was carefully cut into a flawless rectangle, and it's getting a lot of attention because of those unexpected angles and straight lines.

Tabular icebergs, such as the two discovered recently, are typically flat and wide, and very large in length.

The reason its edges are so symmetrical is because it has not been eroded by wind and water yet, indicating that it is still relatively fresh, she added.

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As you can see in the above tweet, the space agency described the block as a "tabular iceberg" which seems to have recently broken off the Larsen C ice shelf. By contrast, iceberg A68's surface area measured some 2,240 square miles at the time of calving.

"This one came from the crumbling Larsen C ice shelf on the Antarctic Peninsula".

A case in point would be a triangle-shaped iceberg spotted by NASA scientists recently and tweeted on October 19.

As for the size of the iceberg NASA photographed, Brunt said it's possibly more than a mile across - but it hasn't been measured yet.

But this is the first year that the scientists will also survey Antarctica using the new Ice, Cloud and land Elevation Satellite-2.

In 2008 the British Antarctic Survey flew over a whole collection of these freakishly flawless tabular icebergs, which had broken off of the Wilkins Ice Shelf on the Antarctic Peninsula.

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