A screen grab of an image captured by ATM's FLIR Camera, a nadir-pointing infrared imager, while flying over a combination of ice floes and open water in the Nares Strait at 33,000' MSL.  This image represents cold temperatures in "cool" colors - blues and greens, and warm temperatures in "warm" colors - yellows and reds.  These newly-formed ice floes are roughly circular in shape, and of course are colder than the surrounding water.  Their thickness also varies, and the thinner ones allow more heat from the water beneath to radiate through them, making them look warmer in this infrared image than the thicker (and cooler) floes appear.