Large Iceberg Breaks Off Antarctica's Mertz Glacier

Wildlife News

ScienceDaily (Feb. 26, 2010) — A joint Australian-French study has discovered the calving of a large iceberg from the Mertz Glacier in the Australian Antarctic Territory. The iceberg -- 78 kilometres long with a surface area of roughly 2,500 square kilometres, about the size of Luxembourg -- broke off the Mertz Glacier after being rammed by another iceberg, 97 kilometres long.

The study, undertaken at the Antarctic Climate and Ecosystems Cooperative Research Centre (ACECRC) in Hobart, and in France, was initiated in 2007 during the International Polar Year to study the 'tongue' of the Mertz Glacier and the 'calving' of icebergs from it.

The Mertz Glacier had a large crack in it for two decades. A second crack developed opposite the first in the early part of the 21st century. The collaboration studied whether these two cracks would eventually meet, and the processes that would lead to the calving of an iceberg.


The joint French-Australian team that detected this calving event has been working on a project called "CRACICE" (Cooperative Research into Antarctic Calving and Iceberg Evolution). The iceberg has an area of about 2,550 square kilometers, an overall length of 78 kilometers, width of 33 to 39 km, and represents about half the length of the glacier tongue. Satellite imagery shows the iceberg separation occurred on February 12-13.


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 Iceberg breaks off Mertz Glacier

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