Photo Friday: Alaska’s Great Glaciers, Before and After

This Photo Friday, take a look at NASA’s Global Ice Viewer, an online interactive that shows how climate change is impacting glaciers, sea ice and continental ice sheets worldwide. Earlier this month, GlacierHub has also reported that climate change is behind more frequent and powerful avalanches in Alaska. Roughly 10 percent of the world’s surface is covered in ice, but as temperatures rise, the ice is quickly disappearing. Join us in viewing some of Alaska’s great glaciers, before and after several years of intense global warming.

If you wish to view more of Alaska’s glaciers, click here.

The photos displayed below were curated by NASA, but the original collection belongs to the Glacier Photograph Collection, a searchable database of digital photographs operated by the National Snow and Ice Data Center.

Alaska Range, Bear Glacier on GlacierHub
Alaska Range, Bear Glacier, photographed by Ulysses Sherman Grant on July 20, 1909 (Source: NASA).

 

Alaska Range, Bear Glacier in 2005 on GlacierHub
Alaska Range, Bear Glacier, photographed by Bruce F. Moinia on August 5, 2005 (Source: NASA).

 

Alaska Range, Carroll Glacier in 1906 by GlacierHub
Alaska Range, Carroll Glacier, photographed by Charles W. Wright in August 1906 (Source: NASA).

 

Alaska Range, Carroll Glacier in 2004 on GlacierHub
Alaska Range, Carroll Glacier, photographed by Bruce F, Moinia on June 21, 2004 (Source: NASA).

 

Alaska Range, Holgate Glacier in 1909 on GlacierHub
Alaska Range, Holgate Glacier, photographed by Ulysses Sherman Grant on July 24, 1909 (Source: NASA).

 

Alaska Range, Holgate Glacier in 2004 on GlacierHub
Alaska Range, Holgate Glacier, photographed by Bruce F. Moinia on August 13, 2004 (Source: NASA).

 

Alaska Range, McCall Glacier in 1958 on GlacierHub
Alaska Range, McCall Glacier, photographed by Austin Post in July 1958 (Source: NASA).

 

Alaska Range, McCall Glacier in 2003 on GlacierHub
Alaska Range, McCall Glacier, photographed by Matt Nolan on August 14, 2003 (Source: NASA).

Photo Friday: The Glacial Alaska Range

The Alaska Range is a narrow, 700-kilometer mountain range defined by rugged peaks and large U-shaped glacial valleys. The range lies in the southeast corridor of Alaska and is home to Denali, the tallest peak in North America. The Alaska range is part of the American Cordillera and possesses peaks only trumped by those in the Himalayas and Andes.

For many decades, the Alaska Range has played host to an incredible variety of landscapes and ecology, with visitors traveling from all over the world to hike, climb and sight see in Denali National Park. One-sixth of Denali National Park, or approximately one million acres, is covered by glaciers, which transport thousands of tons of ice each year, according to the National Park Service. Take a look at GlacierHub’s collection of images of Alaska’s impressive peaks and low valleys shaped by glacial activity over the past million years.

 

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An aerial view of the high altitude peaks of the Alaska Range (Source: Matt Verso/Creative Commons).

 

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Road entering Denali National Park on the east edge of the Alaska Range (Source: Arthur Chapman/Creative Commons).

 

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The U.S. Army flies a helicopter toward Kahiltna Glacier, the longest glacier in the Alaska Range (Source: Defense.gov/Creative Commons).

 

Moving toward the Harper Glacier in Denali National Park (Source: Mikep/Creative Commons).
Moving toward the Harper Glacier in Denali National Park (Source: Mikep/Creative Commons).

 

An aerial view of the Upper Muldrow Glacier, Denali National Park (Source: Pete Klosterman/Creative Commons).
An aerial view of the Upper Muldrow Glacier, Denali National Park (Source: Pete Klosterman/Creative Commons).

 

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Looking south across the Monahan Flat (Source: Albert Herring/Creative Commons).

 

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Looking east across the Monahan Flat (Source: Paxon Woelber/Creative Commons).

 

BHBXAJ airplane Canada Kluane National Park mountain; mountains nature unspoiled Yukon Yukon Territory
Southern edge of the Alaska Range (Source: Denali National Park/Creative Commons).