Earth  ID: 13492

48 Years of Alaska Glaciers

New time-lapse videos of Earth's glaciers and ice sheets as seen from space – spanning nearly 50 years – are providing scientists with new insights into how the planet's frozen regions are changing.

Using images from the Landsat mission dating back to 1972 and continuing through 2019, glaciologist Mark Fahnestock of the University of Alaska Fairbanks, has stitched together six-second time-lapses of every glacier in Alaska and the Yukon. The videos clearly illustrate what's happening to Alaska's glaciers in a warming climate. Some show surges that pause for a few years, or lakes forming where ice used to be, or even the debris from landslides making its way to the sea. Other glaciers show patterns that give scientists hints of what drives glacier changes.

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Mark Fahnestock (Geophysical Institute, University of Alaska Fairbanks): Scientist
Kate Ramsayer (Telophase): Writer
Matthew R. Radcliff (USRA): Producer
Please give credit for this item to:
NASA's Goddard Space Flight Center

Time-lapse videos courtesy of Mark Fahnestock, Geophysical Institute, University of Alaska Fairbanks

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This item is part of these series:
Geophysical Changes Over Time
Narrated Movies

SVS >> Landsat
GCMD >> Earth Science >> Cryosphere >> Glaciers/Ice Sheets
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets
GCMD >> Earth Science >> Cryosphere >> Glaciers/Ice Sheets >> Glaciers
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets >> Glaciers
SVS >> Glaciers
NASA Science >> Earth
GCMD >> Earth Science >> Terrestrial Hydrosphere >> Glaciers/ice Sheets >> Glaciers

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version