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You are browsing the archive for Landsat images glacier retreat Archives - From a Glacier's Perspective.

July 25, 2018

Bas d’Arolla Glacier, Switzerland No Longer Reaches Valley

Bas d’Arolla Glacier in Landsat images from 1990, 2001 and 2017. ┬áRed arrow is 1985 terminus, yellow arrow 2017 terminus location, purple dots annual snowline. A=Bas d’Arolla O=Otemma Bas D’Arolla Glacier is one of the glaciers where the terminus is monitored annually by the Swiss Glacier Monitoring Network (SCNAT). Here we examine changes in this glacier from 1985 to 2017 including changes in the terminus, snowline elevation and tributary connection …

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November 27, 2017

Alsek Glacier, Alaska Retreat & Glacier Separation

Alsek Glacier in a 1984 Landsat image and 2017 Sentinel image.  Red arrows indicate 1984 terminus, yellow arrows 2017 terminus location, pink arrows tributaries that joined the glacier in 1984 and purple dots the snowline.  AR=Alsek River, G=Gateway Knob and P=Prow Knob. Alsek Glacier descends from the Fairweather Range terminating in Alsek Lake on the coastal plain. The glacier terminated at Gateway Knob (G) near the outlet of Alsek River …

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