جبل جليدي في القطب الجنوبي بحجم لندن infographic
Graphic shows size and location of new iceberg, and biggest recorded Antarctic icebergs.
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جبل جليدي في القطب الجنوبي بحجم لندن

By Phil Bainbridge

January 25, 2023 - نشأ جبل جليدي بحجم لندن قبالة القارة القطبية الجنوبية بعد حدوث تشققات امتدت عبر الجرف الجليدي برانت.

The crack known as Chasm-1 had until 2012 been dormant for about 35 years but over the last decade developed naturally as the ice shelf flowed towards the sea at a rate of about 2km per year.

It is not believed to be due to climate change, as atmospheric temperatures above the Brunt Ice Shelf are consistently sub-zero, and no warmer ocean water penetrates into the cavity under the shelf. The iceberg calved when Chasm-1 extended completely through the 150-metre thick ice shelf.

Sources
PUBLISHED: 25/01/2023; STORY: Graphic News
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