Just when you thought you knew it all, someone shows up with something new. That someone is Bob Wallace commenting in the latest post on CT SIA long-term regional graphs. And that something is this website showing the age of Arctic sea ice: Arctic Ice Age.
This website has animations for each month of the past 28 years, based on data provided by James Maslanik and Chuck Fowler, which are also used for the NSIDC March and September analyses of ice age distribution. It's a great tool to compare ice age distributions from year to year, and it even has an animation showing the weekly development of the 'ice year' since the start of the freezing season up to present. The only minor quibble is that this animation is still showing the freezing season starting in 2010.
But I'm definitely not complaining. Just like the CT SIA long-term regional graphs, this is the kind of info that makes it visually crystal clear to even the layest of lay persons what is going on in the Arctic. Thank you for putting this out there.
Here's a sort-of decadal presentation of April sea ice age. 1982, 1992, 2002, and 2010.
2012 has not been added to the database.
Soon coming, I believe.
Lt Blue - open water, Dark Blue - one year old, Red - 5+ years.
Posted by: Bob Wallace | April 11, 2012 at 00:37
Here's September - 1982, 1992, 2002, and 2010.
Posted by: Bob Wallace | April 11, 2012 at 01:00
Thanks for the links and post - Bob and Neven.
I agree that the CT SIA long-term regional graphs and this comparsions of MYI make it clear about what is happening. In the tropics we see little direct evidence of CC - range shifts of a few hundred meters by moths on tropocal moutains doesn't quite have the same visial impact : )
Posted by: Account Deleted | April 11, 2012 at 04:21
Wonderful addition to a winning blog.
Should separate the Skeptic from the Denier.
Can't wait for the update!
Terry
Posted by: Twemoran | April 11, 2012 at 04:26
Should separate the Skeptic from the Denier
It would be good if this were true, but I doubt it.
Posted by: Account Deleted | April 11, 2012 at 05:00
These images show that the ice cap really isn't the same as it used to be.
Thanks for posting Neven, and thanks for the samples Bob.
As these are produced from the Drift Age Model (pretty sure I'm right on this), it'll have no impact on the deniers.
Posted by: Chris Reynolds | April 11, 2012 at 23:12