Retreat of Novatak and East Novatak Glacier - related image preview

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Retreat of Novatak and East Novatak Glacier - related image preview

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Retreat of Novatak and East Novatak Glacier

Landsat satellites watched as glaciers in southeastern Alaska fell back by more than a kilometer over a 25-year period.


NASA Earth Observatory image by Robert Simmon, using Landsat data from the U.S. Geological Survey. Caption by Adam Voiland.

Published August 14, 2014
Data acquired August 22, 1987 - August 13, 2013

Sources:
Landsat 5 > TM
Landsat 8 > OLI