Two of them, actually.
Another Alaska Glacier Advancing
“This can be seen at the Mendenhall Glacier in Juneau,” says reader R. Shearing. ”Last year, the leading edge contracted 450 feet. This year the leading edge is growing by 1.5 – 2 feet per day. Won’t take long to overtake last year’s decline.”
I asked Mr. Shearing how he knew that the Mendenhall was advancing, and he answered, ”I was at the Mendenhall Visitor Center in June of this year and that is information they have in a canned presentation.”
Mendenhall Glacier is located in Mendenhall Valley, about 12 miles (19 km) from downtown Juneau, Alaska’s capital city.
Many years ago, I lived in an apartment less than ½ mile from the glacier’s face, and lassoed glacier ice to put in my scotch on the rocks. (You gotta look out for glacier worms.)
South of Juneau lies the Taku Glacier, which is also advancing, and which I have also visited.
Taku Glacier is monitored by the Juneau Icefield Research Program, which has documented its rate of advance since 1988 at 56 feet (17 meters) per year. If the advance continues it will block the Taku River.
(See http://en.wikipedia.org/wiki/Taku_Glacier )
Thanks to R. Shearing for this info
“One of the important take aways is that the glaciers reached a peak in the 1700s and have been retreating long before the industrial revolution,” says Shearing. “This is posted online here.”
http://www.fs.fed.us/r10/tongass/districts/mendenhall/faq.html
5 Responses to Another Alaska Glacier Advancing
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One of the important take aways is, the Glaciers reached a peak in the 1700s and have been retreating long before the industrial revolution. This is posted online here:
http://www.fs.fed.us/r10/tongass/districts/mendenhall/faq.html
ok, give!
Glacier worms???
don’t leave us all wondering:-)
fess up, tell all.
enquiring minds want to know:-)
Oh, absolutely. Ask anyone from Juneau and they’ll tell you all about glacier worms. Especially if you’re a cheechako.
Laurel: Go here for infor on glacier worms.
http://en.wikipedia.org/wiki/Ice_worm
The maximum of the glacier coinciding with the peak of the Maunder minimum is also another way to say that the advance or retreat of the glacier is ultimately controlled by the intensity of solar radiation.
Let’s check, 2011 had a spike of solar radiation of the present cycle, the glacier retreated.
This year’s radiation is lower, the average temperatures in Alaska are lower and the glacier is advancing.
If this reasoning is correct, it probably advanced too from 2008 to 2010, and we know that glaciers were advancing in Alaska in 2008
http://iceagenow.info/2012/07/alaskan-glaciers-grow-time-250-years/
They say that for the glacier to advance it “would require a reversal of the current warming trends”. Looks like the warming trends are reversing already.
For those who love the Mendenhall Glacier and it’s beauty, it’s a good sign.