Category: Arctic Sea Ice
Sea Ice Extent (Global Antarctic and Arctic) – Day 90 – 2016
PIOMAS – Arctic Sea Ice Volume Up From 2010
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
Sea Ice Extent (Global Antarctic and Arctic) – Day 89 – 2016
Arctic/Antarctic Annual Averages from 2005 to 2015
Antarctic is increasing at +0.93 million sq km per decade
Arctic is decreasing at -0.17 million sq km per decade
Arctic Sea Ice Extent Since 2005 With 0 Shown on Y Axis
Sea Ice Extent (Global Antarctic and Arctic) – Day 88 – 2016
Global Sea Ice is inside the one standard deviation mark.
Antarctic Sea Ice is approaching the above one standard mean mark.
I’m pretty sure Arctic Sea Ice no longer has any chance of changing the maximum for 2016 and therefore will set the record for lowest maximum (NSIDC) by about 20,000 sq km (MASIE disagrees).
sunshine hours 