This rectangular iceberg in Antarctica is near flawless

23 October, 2018, 22:57 | Author: Kelly Sanders
  • NASA’s sea ice survey captures bizarre perfectly rectangular iceberg

Covering an estimated 5,800 sq km, the Larsen C ice shelf extends along the east coast of the Antarctic Peninsula from Cape Longing to Smith Peninsula.

The iceberg is believed to have broken off from the Larsen C ice shelf, where a giant iceberg the size of DE calved previous year.

NASA has discovered an incredible 1.6 kilomtre-long, perfectly rectangular iceberg floating in the Antarctic.

While most of us think of icebergs as pointy chunks of ice with their spires sticking out of the water, these tabular icebergs are quite different.

NASA scientists captured the image on an IceBridge flight, an airborne survey of polar ice.

The study uses research aircraft to capture three-dimensional images and monitor annual changes in thickness of sea ice, glaciers and ice sheets, with the aim of better understanding connections between polar regions and the global climate system.


Brunt observed that the square-like iceberg appeared new at the time because its edges still looked sharp-signs that wind and water had not done their jobs of eroding the iceberg's surface.

Scientists explained that the iceberg in the photo was a tabular iceberg - a large slab of ice with a flat top and vertical sides which form by calving (splitting) from a larger ice shelf.

Known as a tabular berg, the massive block of ice is thought to measure one kilometre long.

"We get two types of icebergs: We get the type that everyone can envision in their head that sank the Titanic, and they look like prisms or triangles at the surface and you know they have a insane subsurface".

The space agency said: 'A tabular iceberg can be seen on the right, floating among sea ice just off the Larsen C ice shelf.

"What makes this one a bit unusual is that it looks nearly like a square", she added in an interview to Live Science.

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