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Author Topic: Rift in Larsen C  (Read 26297 times)

AbruptSLR

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Re: Rift in Larsen C
« Reply #100 on: May 03, 2017, 04:20:36 PM »

https://www.eurekalert.org/pub_releases/2017-05/su-air050217.php

https://scienceblog.com/493824/larsen-c-antarctic-ice-rift-spreads/

The linked articles note the rift in the Larsen C ice shelf in Antarctica now has a second branch, which is moving in the direction of the ice front.  "While the previous rift tip has not advanced, a new branch of the rift has been initiated. This is approximately 10km behind the previous tip, heading towards the ice-front.  "This is the first significant change to the rift since February of this year. Although the rift length has been static for several months, it has been steadily widening, at rates in excess of a metre per day."


As a follow-up, the linked article is entitled: "The Larsen C Ice Shelf Crack Just Sprouted a New Branch". 

http://www.climatecentral.org/news/larsen-c-crack-new-branch-21409

β€œIt is not the strongest or the most intelligent who will survive but those who can best manage change.”
― Leon C. Megginson

Shared Humanity

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Re: Rift in Larsen C
« Reply #101 on: May 03, 2017, 07:54:21 PM »
If you look at the angle that new branch is heading towards the sea, it aligns perfectly with the ice shelf that is pinned by the small island to the north. This is exactly where the berg will break free.

Seumas

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Re: Rift in Larsen C
« Reply #102 on: May 18, 2017, 04:47:32 PM »
An update from Project Midas as Larsen C begins to react to the rift:

http://www.projectmidas.org/blog/reacts-to-rift/

Tor Bejnar

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Re: Rift in Larsen C
« Reply #103 on: May 18, 2017, 06:21:39 PM »
Although still connected by a (twisting) neck, they are calling it an iceberg!  I think the falling-in rift edges is mostly a reflection of the instability of tall cliffs (especially tall cliffs with fractured rock [or ice] around.  The taller the shelf edge, the faster it will fail (more or less).
Arctic ice is healthy for children and other living things.

Tony Mcleod

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Re: Rift in Larsen C
« Reply #104 on: May 19, 2017, 02:06:09 AM »
Appears to the laymens eye those 'slumping' blocks can only wedge the crack further apart a they move.