Ryder Glacier calving follow up: The calving happened sometimes after July 10th and the size is about 50 - 60 km2 or about ½ the size of the latest Petermann piece. Comparing two MODIS images from 08/05/10 and 08/07/12 I can't see a signifcant calving event at Ryder Glacier. There are moving some pieces around. But at the front of the glacier is no really big chance visible. Maybe I'm wrong... Chris K

Only comparing the shapes of the 2010 and 2012 CT SIA graphs, the graph of 2012 is very similiar to 2010, while the shape of the ice extent is quite more different -> http://i1132.photobucket.com/albums/m562/coco727/SeaIceArea2010_2012.jpg Chris K

There is a new monthly update online from NSIDC -> Arctic sea ice near record lows: October 4, 2011 Summer 2011: Arctic sea ice near record lows The summer sea ice melt season has ended in the Arctic. Arctic sea ice extent reached its low for the year, the second lowest in the satellite record, on September 9. The minimum extent was only slightly above 2007, the record low year, even though weather conditions this year were not as conducive to ice loss as in 2007. Both the Northwest Passage and the Northern Sea Route were open for a period during September... Chris K

Hi Neven, Obouy #4 seems to be on the ice now and is operational: Webcam OBuoy#4 Chris K

Neven I used one of my old links instead of the new one before i posted the last post... And NSIDC ist online again now :-) Arctic sea ice near record lows Arctic sea ice extent averaged for August 2011 reached the second lowest level for the month in the 1979 to 2011 satellite record. Both the Northwest Passage and the Northern Sea route appear to be open. Throughout August, sea ice extent tracked near the record lows of 2007, underscoring the continued decline in Arctic ice cover. ... more on http://nsidc.org/arcticseaicenews/ Chris K

NSIDC has just released its August analysis -> http://nsidc.org/arcticseaicenews/ sorry for posting it in an extremly old thread first.... Chris K

NSIDC has just released its August analysis -> http://nsidc.org/arcticseaicenews/ Chris K

NSIDC is online again. Chris K

There is a news on the german site of Alfred-Wegener-Institut about the possible new negative record of summer sea ice cover: german link: AWI: Ein neuer Minusrekord kündigt sich an Same link translated with google: AWI: A new negative record announces itself Chris K

Hi Espen, here you can see the location of the Ward Hunt ic shelf: http://i1132.photobucket.com/albums/m562/coco727/Arctic_r03c032011237wardhunt.jpg Chris K

is it just me or has that crack in the Petermann Glacier extended quite a bit lately? FrankD comparing last year at day 231 and this year at day 230 there is a little difference visible in the size and position of the crack: Chris K

Dramatic. Just looked up Ward Hunt on Google Earth. There was reporting of a widening crack. On Modis there is a clear view of the Ward Hunt Iceshelf area now: http://lance-modis.eosdis.nasa.gov/imagery/subsets/?subset=Arctic_r03c03.2011230.terra.250m Chris K

Hi Neven, you're completely right, my post fits better to your other blog post, sorry for my confusion. And I understand your concerns about the english link, it's really better not to attract the wrong people. First I thought my browser has eaten the second link, but fortunately I read your post before I posted it again.

Hi everybody! This is my first post here. I found an interesting news today about actual ice thickness measurements on the german site of Alfred Wegener Institute. They just completed their 6-week expedition over the Arctic with the Polar 5 research plane. At the moment the news is only in German, but normaly they translate it in english soon. I found some of the information in english on a site, that seems to be a denier site, but the information from the expedition in the first part of the arcticle there is better than no translation. arcticle of Alfred-Wegener-Institut Chris K.