As ripping off graphs seems to be in vogue lately on the Arctic Sea Ice blog ;-), I've decided to copy an idea from commenter Kris. On his website he has pages with University of Bremen sea ice concentration maps of the past couple of years, enabling one to compare the different maps for a single date. I figured that would be a great addition to the Arctic Sea Ice graphs page, and spent most of this Sunday making it real: Concentration maps.
It looks something like this:
Which for me is a great and quick way to see how unusual something is, like the open waters in the western Kara Sea a couple of weeks back, or the retreat of the ice pack off Banks Island in the Beaufort Sea. It also makes it easier to compare years, in a way similar to the CT comparison page, minus the functionality. If you want to have a closer look I'd advise you to open the images in new tabs (by right-clicking them) which will get you a bigger version. Then switch between tabs, and count the amount of clicks when you scroll down with your scroll wheel to look at the region you're interested in.
So far I have only done May and June, 5 dates spread out over the month, as doing all the days in a month would be too much of a Herculean task for poor old, manual me. I will be uploading images for July and August when the time comes. I hope this is visible enough for everyone (I have a 20" monitor, and it works really well for me).