The map shows the historic outlines of the Gorner Glacier system and the surrounding area. The data has been retrieved from the Glacier Monitoring in Switzerland (GLAMOS) database and overlaid on a Copernicus Sentinel-2 image captured on 7 August 2020 to show the recent state of the glacier systems of the area.
The specific datasets used are:
Outline of 1850 based on historical maps and geomorphological evidence
Reference: Maisch et. al, 2000
Outline of 1973 based on aerial imagery
Reference: Muller et. al, 1976 and Maisch et. al, 2000
Outline of 2010 based on aerial imagery
Reference: Fischer et. al, 2014
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