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17 June 2021

Dawes Glacier, Alaska Retreat Driven Separation

Dawes Glacier retreat in 1985 and 2020 Landsat images. Red arrow 1985 terminus, yellow arrow 2020 terminus. Point 1-3 are tributaries joining the main glacier. The glacier is about to separate into two calving termini. Dawes Glacier terminates at the head of Endicott Arm in the Tracy Arm-Fords Terror Wilderness of southeast Alaska. Endicott Arm is a fjord that has been extending with glacier retreat, and is now  58 km …


17 December 2015

Dawes Glacier, Alaska Retreat and Harbor Seals

Comparison of 1987 and 2015 Landsat images of Dawes Glacier. Red arrow 1987 terminus, yellow arrow 2015 terminus, pink arrow location where tributaries separated. Dawes Glacier terminates at the head of Endicott Arm, a 55 km long fjord in southeast Alaska.  Dawes is a major outlet glacier of the Stikine Icefield.  Larsen et al (2007) observed a rapid thinning of the Stikine Icefield and that Dawes was thinning faster than …