NASA told about the history of the rectangular iceberg

Christopher Davidson
November 13, 2018

The famous rectangular iceberg in Antarctica, photographed by NASA in mid-October broke off of the Larsen ice sheet a year ago and during that time has experienced many collisions with other icebergs. Its edges were extremely straight and clean-cut. The unique iceberg made headlines recently, with many people debated its origin.

Quadracer, flat iceberg, in fact, a piece of flat ice that broke away from the ice shelf. But it turned out that the odd-shaped chunk of ice actually has had a much longer and rough journey than was initially thought. Experts have traced the origin of the iceberg using satellites of the ESA Landsat-8 and Sentinel-1.

Subsequently, however, scientists analyzed satellite imagery and found that the iceberg was formed in November of 2017, several months after glacier broke another huge iceberg that is called A-68. However, it has already started melting and splitting into smaller icebergs. Colliding with other floes, iceberg got its unusual shape.

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The pictures were taken as part of the agency's Operation IceBridge and mark the first time anyone has seen the berg, dubbed B-46 by the US National Ice Center.

About it reports the blog NASA Earth Matters. The chunk has also made its way into open water, which is deadly for icebergs.

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