Facts About the Arctic in September 2023

There’s lots of coverage specifically about assorted Arctic sea ice extent metrics over on the “2023 Minimum Extent” thread. However we’ll start the September open thread ball rolling with a couple of cross posted images.

At the end of August JAXA daily extent was 7th lowest for the date, at 4.49 million km² :

The median prediction of the contributors to the August call by the Sea Ice Prediction Network for the September monthly average extent is 4.6 million km² :

Continue reading Facts About the Arctic in September 2023

The 2023 Arctic Sea Ice Minimum Extent

It’s that time of year again! Tony Heller has been asserting that “summer is over at the North Pole” for several weeks now, and the 2023 Arctic sea ice minimum extent will occur at some point over the next four or five weeks. The exact date and level will almost certainly vary from one extent metric to the next.

To get the minimum extent ball rolling, here’s Signe Aaboe’s graph of previous summer minima based on OSI SAF data:

Here too is Zack Labe’s equivalent, based on JAXA data:

Continue reading The 2023 Arctic Sea Ice Minimum Extent

The Information War with the Fossil Fuel Industry

Here’s a few minutes old Xweet from my now ex Member of the European Parliament, Molly Scott Cato:

Here’s a template for Arctic sea ice trolls, helpfully provided by my very good friend “Snow White”:

Look dumbass. Al Gore says the Arctic is warming at 4 times the speed of the rest of planet, but the data says it’s GETTING COLDER!

[Edit – August 3rd]

By way of a change, which is of course as good as a rest, today let’s take a look at some academic psychology. According to the recently published “The illusory truth effect leads to the spread of misinformation” in the journal “Cognition”:

Continue reading The Information War with the Fossil Fuel Industry

Facts About the Arctic in August 2023

We have grandchildren visiting this week, so it seems prudent to get the new open thread started a day early, and before they wake up!

The ARCUS Sea Ice Prediction Network July report has recently been published. Here’s the graphic overview of the 30 predictions for September sea ice monthly average extent:

The July median forecasted value for pan-Arctic September sea-ice extent is 4.66 million square kilometers with interquartile values of 4.51 and 4.87 million square kilometers, while individual forecasts range from 3.12 and 5.30 million square kilometers. We note the lowest forecast is an outlier, and the only forecast that predicts a new record September sea-ice extent value (current record is September 2012, with a sea-ice extent of 3.57 million square kilometers).

Continue reading Facts About the Arctic in August 2023

Tony Heller’s Faithful Flock of Sheep

My Arctic alter ego was checking out the new “X” rated edition of Twitter when “she” couldn’t help but notice that Elon Musk had allowed Tony Heller back into the climate “debate” thereon, albeit with a new handle.

“Snow White” also noticed that for some strange reason Tony was telling lots of porky pies about Arctic sea ice again! Hence:

and:

Continue reading Tony Heller’s Faithful Flock of Sheep

Facts About the Arctic in July 2023

After briefly being near the bottom of the historical range at the beginning of the month, AWI’s high resolution AMSR2 area metric is now back near the top of that range:

However, although it’s not visible on the area graph extent has recently taken a bit of a tumble:

Here’s an animation showing the motion of sea ice in the Arctic over the last month:

Continue reading Facts About the Arctic in July 2023

The Northwest Passage in 2023

Prompted by a comment by Tom in the June open thread, the time has evidently come to open the 2023 Northwest Passage passage thread. First of all let’s get our bearings with the help of this map of the area:

and another map detailing the routes through Canadian Arctic Archipelago that have previously been successfully traversed:

As our starter for ten for 2023, there is already plenty of open water in the Amundsen Gulf, together with plenty of melt ponding on the remaining fast ice in Franklin and Darnley Bays:

“False colour” image of the Lena Delta on June 3rd from the MODIS instrument on the Terra satellite
Continue reading The Northwest Passage in 2023

Facts About the Arctic in June 2023

By way of a change, which is allegedly as good as a rest, let’s start the new month with a very pretty and almost cloud free “pseudo-colour” image of the Lena Delta and adjacent areas of the Laptev Sea:

“False colour” image of the Lena Delta on June 1st from the MODIS instrument on the Aqua satellite

Laptev sea ice area decline has been in high gear recently:

Continue reading Facts About the Arctic in June 2023

Facts About the Arctic in May 2023

At the beginning of May AWI’s high resolution AMSR2 extent metric is at the top of the historical range:

After a period of melt in the East Greenland Sea, export of sea ice from the Central Arctic via the Fram Strait has increased recently:

Sea ice area in the Barents Sea peaked in the first week of April and has declined steadily since then:

SMOS data is flowing again, and the gaps have been filled. Here’s the final pre melt ponding map of the spring:

It reveals large areas of thin ice that have recently developed in the Kara Sea. Here’s a pseudo colour glimpse of the region through the clouds:

Continue reading Facts About the Arctic in May 2023