Ice-out Watch 2008 (false & true colours) - April 16

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Posted Tuesday, Apr 17, 2008                                                                         Photo: NASA/NOAA

Big heat, big melt

Yesterday the temperature jumped to 15 C, and did not drop below freezing overnight for the first time.

The snow melt on the ice was dramatic as the dark blue indicates, and thinning has progressed.

At this time of the year, interpreting the image can be tricky. It helps to compare with the true-colour image below. Only Lake Nipissing shows more small open water, and that is negligible.

False colour, like infrared, enhances the view of ice and snow.

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