Fig. 1: Overview of historical datasets of Kennicott and Root Glaciers in Alaska.
From: An 85-year record of glacier change and refined projections for Kennicott and Root Glaciers, Alaska

a Map of Kennicott Glacier and Root Glacier showing approximate historical DEM extents and the 2023 glacier outlines, plotted atop the Esri World Imagery basemap. The background map is the intellectual property of Esri and is used herein under license. Copyright © 2025 Esri and its licensors, all rights reserved. b Sample aerial photograph from the 1938 dataset (courtesy of the Bradford Washburn Collection, University of Alaska Fairbanks). c–e Orthophotos derived from historical imagery for 1957, 1962, and 1978, respectively. f The study area location in Alaska. g Kennicott and Root Glacier bed topography shown atop the interferometric synthetic aperture radar (IFSAR) 2012 hillshade with 1957 and 2023 glacier outlines.