Wednesday, June 4, 2008

ice watching

Anyone who is interested can observe the day to day measurements of sea ice in the Arctic on the National Snow and Ice Data Center's page Arctic Sea Ice News and Analysis. This is today's updated graphic. The gray line at the top is the average (1979 to 2000)extent of ice for each date, the dotted green line is the actual extent of sea ice on each date in 2007 (the minimum extent recorded so far), and the blue line is this year's (2008) current measurements. As you can see, this year has, until recently exceeded the 2007 minimum, but fallen below the twenty year average.

Many scientists, however, expect that because a much larger extent of the sea ice is thinner one year ice (because of the previous years minimum extent), that melting will accelerate and drop below even the 2007 minimum.

1 comment:

jez said...

That's a pretty fascinating chart.

Thanks for the kind words about my family trip. Seriously sometimes I forget that other people have these "creatures" tool