Looks like about 4.6 million square Km.
2007’s record low average for the month of September was 4.28 million square kilometers.
The bottom is still weeks away, most likely.
I’ll be watching the Arctic Sea Ice Blog, among others, for updates.
NSIDC now has useful ice volume as well.
Joe Romm also has a post today with additional graphs and info.
I wonder how this compares to sea ice mass or ice “quality”?
mass graph now up.
would be interesting to hear from David Barber.
If you’re interested in the ‘quality’ of Arctic ice, the photos from the Healy show some details. Plenty of links from commenters at the Arctic Sea Ice blog.