UPDATE 2: They updated the data, at 3:22 down to 5.786 (which is a 300,000 sq km drop from the day before. Not likely.
On day 96 the Antarctic sea ice extent took an unlikely jump from 6.082 million sq km to 7.959.
Sometimes they correct it the next day. Sometimes they don’t.
UPDATE: The “stuttering” in the daily Antarctic image. (Thanks AZ1971)
PIOMAS is: “Sea Ice Volume is calculated using the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS, Zhang and Rothrock, 2003) developed at APL/PSC. Anomalies for each day are calculated relative to the average over the 1979 -2014 period for that day of the year to remove the annual cycle.”
The PIOMAS daily data is up to the end of February 2016.
I post a lot of graphs about sea ice area and extent. Some of them show all the data. Some of them show data from 2005 because thats when the arctic sea ice extent trends levelled out.
PIOMAS also shows a leveling out, but not until 2010. I will show both the monthly graphs from 2010 and from 1979. (Click twice for larger) (Graph corrected due to incorrect units)
References:
Volume time series and uncertainties:
Schweiger, A., R. Lindsay, J. Zhang, M. Steele, H. Stern, Uncertainty in modeled arctic sea ice volume, J. Geophys. Res., doi:10.1029/2011JC007084, 2011
Model details:
Zhang, J.L. and D.A. Rothrock, “Modeling global sea ice with a thickness and enthalpy distribution model in generalized curvilinear coordinates“, Mon. Weather Rev., 131, 845-861, 2003
sunshine hours 