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26 April 2022

East Twin Glacier Retreats from Twin Lake with Developing Icefield Disconnection

East Twin Glacier in Sentinel 2 images from 2017, 2019 and 2021. Point A marks the threshold, B the terminus contact with lake in 2017, Point 1 is the first ogive above the terminus. East Twin Glacier is a narrow valley outlet glacier from the Juneau Icefield.  The glacier descends from the icefield through an icefall at 975 m- 600 m that generate ogives at the icefall base. The extensive …

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