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Author Topic: Milne Glacier / ice Shelf  (Read 652 times)

NotaDenier

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Milne Glacier / ice Shelf
« on: August 03, 2020, 04:17:51 AM »
Cross post from the 2020 arctic sea ice thread.

Your comment made me look a little closer friv. That was actually a floating ice tongue of the Milne? glacier. It was more like 100m thick (in the 80s) and was the second largest ice Shelf in the attic. So that’s actually a pretty substantial iceberg.

https://en.wikipedia.org/wiki/Milne_Ice_Shelf

https://wirl.carleton.ca/research/ice/ice-shelves/milne-ice-shelf/

https://www.rcinet.ca/en/2013/08/09/eye-on-the-arctic-understanding-the-milne-ice-shelf/

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011JF002074

Edit the shelf was thinner but still pretty thick and held back a epishelf lake. Which I had to read up on. Also the scientists camp and instruments were destroyed but luckily they were not there.

NotaDenier

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NotaDenier

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Re: Milne Glacier / ice Shelf
« Reply #2 on: August 03, 2020, 01:02:16 PM »
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/4AE77AAD799D0A12C61793E822927148/S0022143000006043a.pdf/milne_glacier_northern_ellesmere_island_nwt_canada_a_surging_glacier.pdf

ABSTRACT. During the period 1966 to 1983 Milne Glacier advanced 4.25kmatameanallnualrateof250ma- I,Sincesurgescommonlyoccur over a two or three year period the maximum rate of advance could have beengreaterthan2kma-I.Theglacierterminushasanumberoffeatures indicative ofpast surge behaviour. Of these, at least three looped moraincs suggest surges of the main valley glacier and tributary glaciers. As Milne Glacier is a cold glacier, surges may possibly be Ihermally regulaled. Accu- mulation rates on the ice caps of northern Ellesmere Island are low hence a critical condition in thf' " reservoir area" will be only slowly attained. As a consequence the periodicity of surges in \I1ilnc Glacier and other High Arctic glaciers is expected to be high.

Tor Bejnar

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Re: Milne Glacier / ice Shelf
« Reply #3 on: August 03, 2020, 09:06:32 PM »
...
Sometimes we have to help our computers:
  • ABSTRACT. During the period 1966 to 1983 Milne Glacier advanced 4.25 km at a mean annual rate of 250 m a-1.  Since surges commonly occur over a two or three year period the maximum rate of advance could have been greater than 2 km a-1.  The glacier terminus has a number of features indicative of past surge behaviour.  Of these, at least three looped moraines suggest surges of the main valley glacier and tributary glaciers.  As Milne Glacier is a cold glacier, surges may possibly be thermally regulated.  Accumulation rates on the ice caps of northern Ellesmere Island are low hence a critical condition in the "reservoir area" will be only slowly attained. As a consequence the periodicity of surges in Milne Glacier and other High Arctic glaciers is expected to be high.
Arctic ice is healthy for children and other living things.

NotaDenier

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Re: Milne Glacier / ice Shelf
« Reply #4 on: August 04, 2020, 12:57:05 AM »
Oops! Sorry.

grixm

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Re: Milne Glacier / ice Shelf
« Reply #5 on: August 07, 2020, 08:03:30 AM »
https://ca.reuters.com/article/idCAKCN2523JH

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(Reuters) - The last fully intact ice shelf in the Canadian Arctic has collapsed, losing more than 40% of its area in just two days at the end of July, researchers said on Thursday.

NotaDenier

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Re: Milne Glacier / ice Shelf
« Reply #6 on: August 08, 2020, 02:48:49 AM »

crandles

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Re: Milne Glacier / ice Shelf
« Reply #7 on: August 11, 2020, 02:54:29 PM »
https://www.bbc.co.uk/news/science-environment-53737138

Quote
Milne Ice Shelf: Satellites capture Arctic ice split

Located on the northern margin of Canada's Ellesmere Island, the ice platform split on 30/31 July to form a free-floating bloc some 80 sq km (30 sq miles) in area.

By 3 August, this berg, or "ice island", had itself ruptured in two, with both segments then seen to drift out into the Arctic Ocean.


Milne itself now measures only 106 sq km.