After three full months the Cryosphere Today sea ice area anomaly trend line has finally left the zone below the 2 million square kilometre mark:
As usual, Jim Pettit is serving the current statistical hors d'oeuvres:
- CT SIA area increased by 203k km2 yesterday; that was the fifth double century increase this year, equalling the number of such days seen last year (three of which occurred in the first week of November).
- Area now stands at 6.19 million km2. That's more than 300k km2 less than last year on the same day, and nearly 50k less than 2007.
- Area has increased by 3.955 million km2 in the 47 days since the minimum was reached.
- SIA is the lowest ever seen on day .8301. 2012 has had the lowest daily area 139 times, or 45.4% of the year.
- The SIA daily average for October was 4.3076575 million km2, barely edging out 2007's 4.3089695 km2.
- The negative SIA anomaly fell below two million km2 yesterday, the first time it's done so since August 1. The anomaly had been greater than two million for 90 consecutive days, including the top three, and 12 of the top 20, largest negative anomalies on the record.
Here's the CT SIA graph:
Of course the record anomaly of 2007 was broken as well two weeks ago, and the global sea ice area record anomaly would have been too if not for a couple of thousand square kilometres (see graph), due to anomalously high SIA numbers in the Antarctic (which unsurprisingly to most has now almost reached the average).
That Arctic sea ice area is still so low is not surprising when you see some of the regional graphs, like this long-term graph of SIA in the Beaufort Sea (check out the red anomaly trend):
The Kara and Barentsz Seas will probably be pulling the same stunts they did in the last two winters, given SST anomalies in the region (where the red is, around Novaya Zemlya):