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Had a quick look after Espen's heads up and I'd have to agree that Petermann looks a little changed at either side.
Petermann calves again
Petermann Glacier has calved another large ice island, about half the size of the calving of two years ago, which amounts to about two Manhattans. This is what it looks like: This second big calving (spotted this time by Arcticicelost80) is another spectacular event on Greenland this year, fol...
As a completely amateur lurker, I rarely comment, lest I make a complete fool of myself. However, I can't resist noting the apparent havoc that the recent persistent low pressure systems seemed to have wreaked on the pack, all the way from the Laptev to (what remains of) the Beaufort Sea.
Looking at today's MODIS image appears to show holes and low concentration all the way around the arc on the Pacific side. It this normal (at least for the recent past) at this time of year? And what does it portend?
Can we now expect to see a fairly rapid clearing of the E Siberian, Chukchi and Beaufort, with the lows continuing to drag ice away from Russia and towards the very warm Beaufort? Time was, lows would be bad for ice loss, though it doesn't seem that way just lately.
And if so, what then? With the outside ice lost, does the rest get whisked across to the Atlantic side with nothing left to replace it? The current glops of MYI exiting the Fram must be hurting volume a little, so I dread to think what would happen if a strong DA should take hold for any appreciable time.
Since we are at this point so early, with a seemingly vulnerable pack, it seems that this year has extra time available over 2011 to make this eventuality come about.
Are my fears likely, or am I being too alarmist, do you think?
CT SIA anomaly drops below 2 million km2
With a drop of 174,867 square km for July 17th reported by Cryosphere Today (run by the Polar Research Group at the University of Illonois at Urbana-Champaign), the 2012 sea ice area anomaly has dropped below 2 million square kilometres, compared to the 1979-2008 mean: So what, one may ask. It ...
Nice to see the news has at last hit the mainstream, with it being the number 1 read item on www.bbc.com just at the moment.
Petermann calves again
Petermann Glacier has calved another large ice island, about half the size of the calving of two years ago, which amounts to about two Manhattans. This is what it looks like: This second big calving (spotted this time by Arcticicelost80) is another spectacular event on Greenland this year, fol...
Warzypants is now following Artful Dodger
Jun 29, 2012
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Jun 29, 2012
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Jun 29, 2012
Warzypants is now following Espen
Jun 29, 2012
Warzypants is now following Arctic Nev
Jun 29, 2012
I was thinking that was just an overlapping cloud ... but it did have be going for a minute. I'm sure we shall all see very soon.
SIE 2011 update 7: Beaufort Gyre
During the melting season I'm regularly writing updates on the current sea ice extent (SIE) as reported by IJIS (a joint effort of the International Arctic Research Center and the Japan Aerospace Exploration Agency) and compare it to the sea ice extents in the period 2005-2010. NSIDC has a good ...
The low SIE reductions of the past few days are noteworthy and it may well be that we are seeing the end of the melt, however that might not be the whole story. For one thing, there's a lot of marginal ice around, with large areas hovering around the 15% cut-off level and only a little bit of additional melt in these areas (or wind-driven clearing, for that matter), could change matters significantly. Then there are the interesting states of affairs of the coast of Greenland, where large chunks of land-fast ice just keep dropping off and melting in the Greenland Sea, reducing the formerly ice-free area there. There is also a large blob of multi-year ice entering Fram Strait from Northern Greenland and occupying formerly clear ocean of the polynia there. Lastly, there is the interesting large triangle of thinnish (but probably >15% concentration) ice floe just to the right of that, also entering Fram Strait. So, IMHO, whilst it might be "all over,rover", there could equally be a few surprises to be had yet.
Sea ice extent update 25: the time is now
I'm regularly writing updates on the current sea ice extent (SIE) as reported by IJIS (a joint effort of the International Arctic Research Center and the Japan Aerospace Exploration Agency) and compare it to the sea ice extents in the period 2006-2009. The IJIS graph is favoured by almost everyo...
Warzypants is now following logicman
Aug 17, 2010
Yes it does, and to my untrained eyes, far more volume is being exported than through Nares St. I wonder how many weeks this situation will remain in place and what scale of effect this will have on the remaining multi-year ice?
Animation 11: Canadian Archipelago
Things are finally clearing up a bit thanks to the high-pressure system over the Beaufort Sea, which enables us to have a renewed look at what is going on between the Queen Elizabeth Islands (and the Northwest Passage): What a difference 37 days make! Looks like some of that multi-year ice fro...
The remaining large chunk of landfast ice in NE Greenland has suffered another large-scale collapse according to this latest MODIS image ...http://rapidfire.sci.gsfc.nasa.gov/subsets/?subset=Arctic_r02c03.2010222.terra.250m
Sea ice extent update 23: last chance for change
I'm regularly writing updates on the current sea ice extent (SIE) as reported by IJIS (a joint effort of the International Arctic Research Center and the Japan Aerospace Exploration Agency) and compare it to the sea ice extents in the period 2006-2009. The IJIS graph is favoured by almost everyo...
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Jul 1, 2010
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Jul 1, 2010
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