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April 26, 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 …
Dean of Academic Affairs at Nichols College and Professor of Environmental Science at Nichols College in Massachusetts since 1989. Glaciologist directing the North Cascade Glacier Climate Project since 1984. This project monitors the mass balance and behavior of more glaciers than any other in North America.