Figure : muir-glacierrepeat-photograph

Changes in Muir Glacier Extent

Figure 11.4

National Aeronautics and Space Administration
Patrick C. Taylor

This figure appears in chapter 11 of the Climate Science Special Report: The Fourth National Climate Assessment: Volume I report.

Two northeast-looking photographs of the Muir Glacier located in southeastern Alaska taken from a Glacier Bay Photo station in (a) 1941 and (b) 2004. U.S. Geological Survey repeat photography allows the tracking of glacier changes, illustrating that between 1941 and 2004 the Muir Glacier has retreated more than 4 miles to the northwest and out of view. Riggs Glacier (in view) is a tributary to Muir Glacier and has retreated by as much as 0.37 miles and thinned by more than 0.16 miles. The photographs also illustrate a significant change in the surface type between 1941 and 2004 as bare rock in the foreground has been replaced by dense vegetation (Figure source: USGS 2004c4821683-1d14-45d8-b6ae-5635ee420ca9 ).

Free to use with credit to the original figure source.

This figure was created on April 11, 2017.

This figure was submitted on October 05, 2017.

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