Daily Archives: November 1, 2013

Polar bear habitat update for October 31, 2013

Here’s the ground-truth follow-up to my suggestion of what polar bear habitat would likely look like 6 weeks after the minimum extent was reached this year – which was looking then like it would mirror 2009.

You’ll find my discussion, posted on September 22, here. At that point (September 13), ice extent was 5.1 million square kilometers; now it is 9.1 million square kilometers (Fig.1).

Figure 1. Oct 30 2013 Maisie sea ice extent, 9.1 mkm2. This does not take thickness or concentration into account.

Figure 1. Oct 30 2013 Maisie sea ice extent, 9.1 mkm2. Click to enlarge.

Have a look at the maps below: Fig. 2 to see how ice extent at October 31st compares to ice extent at the end of October 2009, and Fig. 3 to see what ice concentrations looked like in the Canadian Arctic.

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