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September 12, 2018

Cordova Glacier, Alaska Loses a Lake & a Tributary

Cordova Glacier retreat and glacier separation revealed by Landsat images from 1987 and 2018, red arrow is the 1987 terminus position of main glacier and tributaries, yellow arrow is the 2018 terminus location.  Purple dots indicate the snowline and the pink arrow the former location of Rude Lake.  Cordova Glacier is located at the head of the western fork of the Rude River in the Chugach Mountains, Alaska. In USGS …


April 26, 2017

Fasset Glacier, Alaska Retreats from Tanis Lake

Fasset Glacier in 1987 and 2016 Landsat images.  Red arrow indicates glacier front in 1987, pink arrows indicates areas where glacier retreat has exposed rock/bare ground and purple dots indicate snowline. Fasset Glacier drains west from The Brabazon Range near Yakutat and had terminated in Tanis Lake for the entire 20th century.  (Truessel et al 2013) and Truessel et al (2015) note the rapid retreat and thinning of nearby Yakutat Glacier. …