Hi Russell--Have you watched the documentary "Chasing Ice"? You can see
the type of collapse being talked about at
https://www.youtube.com/watch?v=hC3VTgIPoGU
Best, Mike
On 11/25/17 7:04 PM, Russell Seitz wrote:
Just how fast would the Pine Island and Thwaite glaciers have to
advance to reify Grist's fear that :
" Minute-by-minute, huge skyscraper-sized shards of ice cliffs would
crumble into the sea, " ?
As huge skyscrapers tend to be tens of meters wide, the article
implies that the rate of Antarctic glacial advance is about to
accelerate to the un-glacial pace of > 10 x 60 x 24 = ~ 1.4
kilometers a day or more.
Some explicit dimensional analysis would seem in order if the
authors expect to change the minds of those who have seen far steeper
bergschrunds ( Like the Nanga Parbat massif's Raikot glacier )
clanking along at far lower speeds and higher temperatures
On Tuesday, November 21, 2017 at 7:01:59 PM UTC-5, Andrew Lockley wrote:
https://grist.org/article/antarctica-doomsday-glaciers-could-flood-coastal-cities/
<https://grist.org/article/antarctica-doomsday-glaciers-could-flood-coastal-cities/>
I very rarely share something that's aimed at the lay reader, or
off topic. The above link is both - but it's a particularly good
piece of writing about ice instability tipping points.
Very good for shaking people out of their complacency!
Andrew
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