JAXA ARCTIC EXTENT :- 9,597,909 km2(June 24, 2019)
- Extent is 5th 6th lowest in the satellite record.
- Extent loss on this day 61 k, 16 k less than the average loss on this day of 77 k.
- Extent loss from maximum 4,673 k, 134 k (3.0 %) greater than the average of 4,539 k loss from maximum by this day,
- On average 45.9% of the melting season done, with 81 days to average date of minimum (13 September).
The Perils of Projections.
Average remaining melt would give a minimum of 4.26 million km2, 4th lowest in the satellite record, and 1.08 million km2 above the 2012 low of 3.18 million km2.
Looking at the last 5 years average remaining melt gives a result of 4.36 million km2, 6th lowest, and 1.18 million km2 above 2012.
Other Stuff
Until the weekend GFS showing temperature anomalies at +0.9 to +1.9 degrees celsius. During this time the images suggest high +ve anomalies in central and eastern Siberia, with contrasting and sometimes strong -ve anomalies for most of the time on land and coastal sea by and in the Beaufort/CAA and Western Siberia, and in contrast again mostly +ve anomaly over most of the Arctic Ocean.
Over the weekend the picture changes somewhat. By Monday the CAA gets warmer, NW Canada and Alaska get a lot colder, and on the Russian side warmth moves west into areas bordering the Laptev and Kara, while the ESS area switches from strong warmth to a cold snap. However, over the Arctic Ocean itself there is a modest +ve temp anomaly. Overall the Arctic temp anomaly stays well below 1 degree celsius.
A complicated picture.
We are now entering the period of maximum daily extent loss that lasts until mid or late July and then very gradually declines.
Apart from 2 days, over the last 3 weeks and more extent loss has been below or well below average.
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The volume data for June should be available by late next week. It will be interesting to see what has happened to volume and perhaps more importantly, thickness during this month.