Planned intervention: On Wednesday April 3rd 05:30 UTC Zenodo will be unavailable for up to 2-10 minutes to perform a storage cluster upgrade.
Published January 9, 2015 | Version v1
Dataset Open

Data from: Historical retreat of alpine glaciers in the Ahklun Mountains, western Alaska

Description

The Ahklun Mountains support the only extant glaciers in western Alaska. The glaciers were originally mapped by the U.S. Geological Survey using photogrammetry methods based on 1972 - 1973 aerial photos. We surveyed for presence or absence of the glaciers by fixed-wing aircraft in 2006. Of 109 glaciers originally mapped, 10 (9%) had disappeared. Using aerial imagery of a subset of 76 glaciers at three time steps between 1957 - 2009, we determined the average rate of areal loss was 45% over 52 years. At this rate, it is likely that all Ahklun Mountain glaciers will be extinguished by the end of the current century.

Notes

Files

Files (320.0 kB)

Name Size Download all
md5:0980ecd91e2237111fc92c3a4b80dbe7
213.0 kB Download
md5:e93f2dd2e02e08f2d9fafcd42e3d7fca
107.0 kB Download

Additional details

Related works

Is cited by
10.3996/012014-JFWM-008 (DOI)