Category Archives: News

Facts About the Arctic in November 2026

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:

Watch this space!

Facts About the Arctic in October 2026

The Arctic sea ice refreeze has started with a bang, and JAXA/ViSHOP extent is currently 17th lowest for the date in the satellite era:

A large area of the Beaufort Sea melted late and has now refrozen swiftly:

Here’s the current AWI concentration map. Click the image so view a 2 Mb animation showing the process in detail:

Continue reading Facts About the Arctic in October 2026 →

Facts About the Arctic in September 2026

With the 2026 minimum extent rapidly approaching, JAXA/ViSHOP extent is currently 12th lowest for the date in the satellite era:

Despite the falling air temperatures, the AWI concentration map is still showing plenty of open water near the North Pole:

Note also the recent increase in the area of old ice heading for oblivion via the Fram Strait:

Continue reading Facts About the Arctic in September 2026 →

Facts About the Arctic in August 2026

July was once again dominated by low pressure and anomalously low temperatures over the central Arctic:

As a consequence the NSIDC monthly average extent for July was 6th lowest in their record going back to 1979:

August began with low pressure still dominant. According to the Canadian Meteorological Centre yet another cyclone bottomed out with a mean sea level pressure of 973 hPa on the 4th:

The continuing cyclonic activity has dispersed the sea ice, and JAXA extent is currently 12th lowest in their record:

The other side of the same coin is that reduced sea ice concentration is now apparent across large areas of the Central Arctic Basin:

Continue reading Facts About the Arctic in August 2026 →

Facts About the Arctic in July 2026

At the beginning of July the JAXA/ViSHOP web site is undergoing maintenance yet again! Here here is how their 2 day average extent graph looked for July 1st:

Image: binntho on the Arctic Sea Ice Forum

Extent is currently second lowest for the date, above 2025 by a whisker.

Looking next at temperature anomalies across the Arctic, the Beaufort and Chukchi Seas are slightly cooler than the 1979-2000 climatology. However, the East Siberian Sea and particularly the Canadian Arctic Archipelago are well above what used to be considered “normal”:

Continue reading Facts About the Arctic in July 2026 →

The Northwest Passage in 2026

For those of you unfamiliar with the names of the assorted islands and channels of the Canadian Arctic Archipelago here is a map that hopefully helps:

Plus another map detailing the routes through the Canadian Arctic Archipelago that have previously been successfully navigated by vessels large and small:

The sea ice in Lancaster Sound and the Amundsen Gulf is breaking up, and melt ponds are now visible on the fast ice across much of the southern route through the Canadian Arctic Archipelago:

“False colour” image of the Canadian Arctic Archipelago on June 17th from the MODIS instrument on the Terra satellite

The melt ponds previously visible in the Coronation Gulf now appear to have drained:

“False colour” image of the Canadian Arctic Archipelago on June 3rd from the MODIS instrument on the Aqua satellite
Continue reading The Northwest Passage in 2026 →

The Northern Sea Route in 2026

It’s going to be more difficult to follow traffic on the Northern Sea Route this year, because the Russian authorities are no longer publishing daily position information for ships using the route.

However other sources revealed that things got underway early this year. On May 29th the nuclear icebreaker Ural led LNG tanker Christophe de Margerie through the Vilkitsky Strait into the Laptev Sea:

On June 5th the modest convoy is about to pass Wrangel Island into the Chukchi Sea:

Another nuclear powered icebreaker, Yakutiya, has also just made its way through the Vilkitsky Strait heading east:

If Yakutiya is leading a convoy of one or more other vessels through the pack ice in the Laptev Sea they have all got satellite AIS turned off!

[Update – June 8th]

Christophe de Margerie has passed through the Bering Strait, and thus completed the first west to east voyage through the Northern Sea Route this year. Ural has been left behind in the Chukchi Sea:

Yakutiya has travelled north of the New Siberian Islands and entered the East Siberian Sea:

[Update – June 15th]

Christophe de Margerie has just passed through the Bering Strait heading north on a return journey through the NSR. This time around Yakutiya is leading the way:

[Update – June 22nd]

Yakutiya and Christophe de Margerie have just passed through the Vilkitsky Strait heading west:

The skies were fairly clear over the central Northern Sea Route this morning, revealing the fast ice breaking up in the East Siberian Sea and plenty of melt ponds in the Laptev Sea:

“False colour” image of the Laptev and East Siberian Seas on June 22nd from the MODIS instrument on the Terra satellite

[Update – June 30th]

Christophe de Margerie is back in the Laptev Sea heading east, this time accompanied by Boris Davydov, another LNG tanker. The nuclear icebreakers are all in the Kara Sea, on the other side of the Vilkitsky Strait:

[Update – August 27th]

In a highly unusual occurrence, two “Capesize” bulk carriers are en route to the far east via the Northern Sea Route. Deyi Confidence and Deyi Excellence have entered the Laptev Sea by sailing around the north of Severnaya Zemlya rather than using the usual route via the Vilkitsky Strait:

Watch this space!

Facts About the Arctic in June 2026

The JAXA/ViSHOP web site is currently undergoing maintenance, but here is how their 2 day average extent graph looked for June 2nd:

Extent was 3rd lowest in the JAXA record, behind 2016 and 2019.

The Alfred Wegener Institute’s sea ice concentration data shows that the Bering Sea is now largely free of sea ice, and the areas of open water in the Beaufort, Chukchi, East Siberian and Laptev Seas continue to expand:

The sea ice concentration map also shows open water in much of Lancaster Sound. Also apparent is the widespread presence of melt ponds along the southern part of the Canadian Arctic Archipelago. Here’s a closer, albeit somewhat cloudy, look:

“False colour” image of the Canadian Arctic Archipelago on June 3rd from the MODIS instrument on the Aqua satellite
Continue reading Facts About the Arctic in June 2026 →

Facts About the Arctic in May 2026

JAXA have updated their visualisations of Arctic sea ice extent data. The “traditional” 2 day average graph is now labelled “preliminary”, and currently shows 2026 in a tie with 2020 for third lowest for the date:

5 day averaged “confirmed” data is also available, including regional graphs. By way of example here’s JAXA’s latest extent graph for the Bering Sea, dated May 15th:

The Alfred Wegener Institute’s sea ice concentration data reveals open water in the Beaufort, Chukchi, East Siberian and Laptev Seas:

Continue reading Facts About the Arctic in May 2026 →

Facts About the Arctic in April 2026

In early April JAXA Arctic sea ice extent is 3rd lowest for the date, albeit in a “statistical tie” with last year:

The Alfred Wegener Institute’s regional extent graphs reveal an intriguing divergence on the Pacific periphery, where sea ice extent in the Sea of Okhotsk is at an all time low for the date in the AMSR2 record:

On the other hand extent in the Bering Sea is close to an all time high:

On the Atlantic periphery extent is less extreme, although there is currently open water north of Svalbard:

Looking at the third dimension, here is the AWI’s CryoSat-2/Sentinel 3/SMOS Arctic sea ice thickness map at the end of March:

Continue reading Facts About the Arctic in April 2026 →