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 Icebergue do tamanho de Londres na Antártida infographic
A infografia mostra o tamanho e a localização do novo icebergue, e os maiores icebergues registados na Antártida.


Icebergue do tamanho de Londres destaca-se da Antártida

By Phil Bainbridge

January 25, 2023 - Um enorme icebergue, quase do tamanho da Grande Londres, separou-se da placa de gelo Brunt de 150m de espessura na Antártida, depois de se abrir uma fenda por toda a placa.

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.

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