This Envisat image shows the snow-covered Nunavut territory in the Canadian Arctic. The icy body of water is Fox Basin, a shallow extension of the Atlantic Ocean. Due to the low elevation of the sun at this time of the year, the top of the image appears very dark. The position of the low sun gives the clouds in the upper part of the image a reddish tint.
The Advanced Along Track Scanning Radiometer (AATSR) acquired this image on 2 December 2009. AATSR, one of the 10 instruments on Envisat, has a visible-light imaging capability for land surfaces and atmospheric clouds and aerosols.