Map shows locations of Twin Glacier, and extensive sites Beistad and Teardrop Glaciers on the eastern coast of Ellesmere Island. 
Map shows locations of Twin Glacier, and extensive sites Beistad and Teardrop Glaciers on the eastern coast of Ellesmere Island. 
 Air photograph of Alexandra Fiord lowland in 1959, showing the southern (A) and western (B) lobes of Twin Glacier.
Air photograph of Alexandra Fiord lowland in 1959, showing the southern (A) and western (B) lobes of Twin Glacier.
Aerial photograph of Twin Glacier’s western lobe (right) and southern lobe (left) in July 2015. The study area is represented by the yellow shape.
Aerial photograph of Twin Glacier’s western lobe (right) and southern lobe (left) in July 2015. The study area is represented by the yellow shape.
Aerial photograph of Twin Glacier’s western lobe in July 2015. The survey area is delineated by the yellow box. The approximate glacial retreat between 1995 and 2016 is shown by the white shading.
Aerial photograph of Twin Glacier’s western lobe in July 2015. The survey area is delineated by the yellow box. The approximate glacial retreat between 1995 and 2016 is shown by the white shading.
Map shows locations of Twin Glacier, and extensive sites Beistad and Teardrop Glaciers on the eastern coast of Ellesmere Island. 
Map shows locations of Twin Glacier, and extensive sites Beistad and Teardrop Glaciers on the eastern coast of Ellesmere Island. 
 Air photograph of Alexandra Fiord lowland in 1959, showing the southern (A) and western (B) lobes of Twin Glacier.
Air photograph of Alexandra Fiord lowland in 1959, showing the southern (A) and western (B) lobes of Twin Glacier.
Aerial photograph of Twin Glacier’s western lobe (right) and southern lobe (left) in July 2015. The study area is represented by the yellow shape.
Aerial photograph of Twin Glacier’s western lobe (right) and southern lobe (left) in July 2015. The study area is represented by the yellow shape.
Aerial photograph of Twin Glacier’s western lobe in July 2015. The survey area is delineated by the yellow box. The approximate glacial retreat between 1995 and 2016 is shown by the white shading.
Aerial photograph of Twin Glacier’s western lobe in July 2015. The survey area is delineated by the yellow box. The approximate glacial retreat between 1995 and 2016 is shown by the white shading.
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