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Glacial retreat

Posted: Fri Feb 22, 2013 12:31 pm
by owlice
McCarty Glacier
Top photo taken by Ulysses Sherman Grant, 30 Jul 1909
Citation: Grant, Ulysses Sherman. 1909 McCarty Glacier: From the Glacier Photograph Collection. Boulder, Colorado USA: National Snow and Ice Data Center/World Data Center for Glaciology. Digital media.
Bottom photo taken by Bruce F. Molnia, 11 Aug 2004
Citation: Molnia, Bruce F. 2004 McCarty Glacier: From the Glacier Photograph Collection. Boulder, Colorado USA: National Snow and Ice Data Center/World Data Center for Glaciology. Digital media.

[attachment=0]McCarty Glacier.jpg[/attachment]
You can select your own glacier then and now pictures from here.

Re: Glacial retreat

Posted: Fri Feb 22, 2013 12:39 pm
by owlice
NASA wrote:Forty-six gigatons of ice from Alaskan glaciers was lost on average each year from 2003 to 2010. That's according to data from NASA's GRACE satellite, as analyzed by a team of scientists from the University of Colorado at Boulder. Their paper on global ice changes, as measured by GRACE, was published in Nature in February 2012.

For more on that study, visit: http://www.jpl.nasa.gov/news/news.php?release=2012-036
Emphasis mine.

Re: Glacial retreat

Posted: Fri Feb 22, 2013 1:31 pm
by rstevenson
owlice wrote:You can select your own glacier then and now pictures from here.
Unfortunately -- and improbably -- the Then and Now search doesn't have any results for the Athabaska Glacier in Alberta, one of the most visited glaciers in the world. I did find two overhead pictures taken in 1964 and 1988, but nothing more recent.

I have a picture I took there in 1960 (I Was A Child Photographer could be the title of a lurid exposé) and I'd like to compare it with one taken recently. Ah well, I may have to take a bike ride next summer -- about 5000 km at 15 kph, is ... ... . Never mind.

Rob

Re: Glacial retreat

Posted: Fri Feb 22, 2013 1:50 pm
by Beyond
rstevenson wrote:
owlice wrote:You can select your own glacier then and now pictures from here.
Unfortunately -- and improbably -- the Then and Now search doesn't have any results for the Athabaska Glacier in Alberta, one of the most visited glaciers in the world. I did find two overhead pictures taken in 1964 and 1988, but nothing more recent.

I have a picture I took there in 1960 (I Was A Child Photographer could be the title of a lurid exposé) and I'd like to compare it with one taken recently. Ah well, I may have to take a bike ride next summer -- about 5000 km at 15 kph, is ... ... . Never mind.

Rob
Hey Rob, get owlice to do the bike ride. She pedals good :!: :lol2:

Re: Glacial retreat

Posted: Fri Feb 22, 2013 1:56 pm
by owlice
Well, I can go with Rob, as we travel at about the same speed.

Rob, is there a similar Canadian site you can check for images of the Athabaska Glacier?

Re: Glacial retreat

Posted: Fri Feb 22, 2013 2:32 pm
by rstevenson
I can't find a very similar site, but of course there are tens of thousands of pictures of Athabaska Glacier online. A Google search coughed up this one, for example. (I added the dates and downsized it for the forum.) ...
Athabasca Glacier 1907-1998 (Whyte Museum & Brian Luckman)
Athabasca Glacier 1907-1998 (Whyte Museum & Brian Luckman)
When I was there in 1960 I recall the edge of the glacier was in that lake at its base. I may have to go spelunking in the musty depths of my basement to find that picture I took to ensure my memory is not too faulty.

Rob