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9 October 2019

Taku Glacier, Alaska Retreat Begins: A Two Century Long Advance Reversed by Climate Change

The Taku Glacier is the largest outlet glacier of the Juneau Icefield in Alaska.  Taku Glacier began to advance in the mid-19th century and this continued throughout the 20th century. At first observation in the 19th century the glacier was calving in deep water in a fjord.   It advanced 5.3 km between 1890 and 1948 moving out of the fjord into the Taku River valley, see maps below (Pelto …

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28 September 2018

Taku Glacier, Alaska in 2018 Highest Snowline in 70+ years

Taku Glacier transient snowline (purple dots) in Landsat images from 7/21 and 9/16/2018. The Juneau Icefield Research Program (JIRP) has been examining the glaciers of the Juneau Icefield since 1946. Until the NASA Landsat program began, field measurements and aerial observations were the only means to observe the glaciers of the icefield. For more than 40 years it was Maynard Miller, U of Idaho, who led this expedition that has trained so …

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