Upsala Glacier

Upsala Glacier in Argentina’s Los Glaciares National Park is pictured in this Sentinel-2A image from 22 January 2016. Taking a closer look at the terminus of the Upsala Glacier, we can see how icebergs have broken off and are floating in the water of the upper reaches of Lake Argentino. The lake’s unique colour is attributed to ‘glacier milk’ – suspended fine sediment produced by the abrasion of glaciers rubbing against rock.

The darker lines following the flow of the glacier are moraines: accumulations of rock, soil and other debris – including glacial milk – that have been deposited by the glacier.”