Sea Ice Retreats in the Northwest Passage : Image of the Day: Acquired July 17, 2012, and August 3, 2012, these natural-color NASA satellite images show the retreat of sea ice from the Parry Channel in the Northwest Passage. The Canadian Ice Service reported that ice cover in Parry Channel began to fall below the 1981–2010 median after July 16, 2012, and the loss accelerated over the following two weeks. On July 23, the percentage of ice cover in the channel was roughly 67 percent, compared to the median of 80 percent. On July 30, ice cover was roughly 33 percent, compared a median of 79 percent.
|August 3, 2012|
|July 17, 2012|