At the beginning of November JAXA/ViSHOP extent is in a “statistical tie” with 2012 for 6th lowest for the date in the satellite era:

In the continuing absence of the Alfred Wegener Institute’s Arctic sea ice concentration map, here once again is the AMSR3 based map from the University of Bremen:
Here too is the University of Bremen’s latest SMOS/SMAP “thin ice thickness” map:
[Update – November 10th]The JAXA web site is online once again, but currently extent data is only available up to November 7th:
On the 7th extent was 5th lowest for the date.
After a brisk start to the freezing season, the slope of the DMI freezing degree days graph has reduced over recent days:

At long last atmospheric conditions over the Arctic in October failed to show persistent low pressure over the Central Arctic Basin. In October there was a dipole pattern, with low pressure on the Siberian side of the CAB opposed to high pressure on the Canadian side. Temperatures at the 925 hPa pressure level were anomalously high across most of the Arctic, in particular over the Barents Sea. Baffin Bay was the only area slightly cooler than average:


Much like last month, NSIDC average sea ice extent for October is significantly above the long term trend:
[Update – November 11th]JAXA extent has caught up with the recent backlog, and GS will no doubt be overjoyed to find it currently in 4th lowest position for the date. In the satellite era!
Here too is the current Arctic sea ice thickness map, based on AWI’s combined CryoSat-2, Sentinel 3 and SMOS data:
For the 7 days centred on November 6th Arctic sea ice volume was 8038.9 km³.

Finally for today, here is the University of Bremen’s latest AMSR3 concentration map for the Arctic Ocean:
[Update – November 15th]The NSIDC have published their October summary, which includes an update on sea ice cover in the Northwest Passage:
Despite warm conditions for most of the summer in the Canadian Archipelago, sea ice blocked the northern (deep water) route of the Northwest Passage, from Parry Channel to Melville Sound, through the late summer. That route had above average ice extent throughout the spring and early summer. However, as has been the case for most years in this century, the southern route—pioneered by Amundsen in 1905—was nearly ice free by mid-August and remained relatively open until mid-October.


In other news, Lars Kaleschke’s “sea ice leads” map of AWI concentration data is back! The animation still contains a big gap, but here is the map for November 14th at least:
Watch this space!



























































