compare sea ice

The Cryosphere Today

Compare Daily Sea Ice

Left panel date: October 26 1998
Right panel date: October 26 2008


Historic snow cover data not displayed on these images. Sea ice concentrations less than 30% are not displayed in these images.

The above is comparing the ice cap 10 years ago to today:
It shows more ice today above Alaska but less about western Russia. In fact, they are very similar given that the ice grows dramatically day-to-day at this time of year.
It shows that this year's ice extent is very typical for the last six years. 2007 had an unusually large melt in the summer. 2008 had more melt than normal in late summer, probably due to the loss of multi-year ice from the year before. Nevertheless, things appear to be returning to normal.

There is no evidence of winter melt whatsoever in these charts.
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