|Sea ice, Ross Sea, Antarctica, 1996. Photo © Bruce Luyendyk|
Saturday, August 2, 2014
Underlying the news of the glitch is the prior observation that the amount of sea ice has been increasing year over year. This is opposite the observation for the Arctic Ocean where famously, sea ice area has been shrinking year over year3.
First about the glitch; this is due to a difference in the methods used in computing Antarctic sea ice cover from satellite imagery. The method was changed in 1991.