Mendenhall Glacier Extents: 1974-2001

Year Mendenhall
(km2)
Suicide Icefall
(km2)
SUM
(km2)
Period Change
(km2)
Change
(%)
Rate
(%/yr)
1974 97.861 9.433 107.294
1986 97.289 9.260 106.549 1974-1986 -0.745 -0.69 -0.06
1991 96.727 9.149 105.876 1986-1991 -0.673 -0.63 -0.13
2001 95.810 8.920 104.730 1991-2001 -1.146 -1.08 -0.11
1974-2001 -2.564 -2.39 -0.09

View and explore these Mendenhall Glacier outlines in Google EarthMendenhall Glacier Extent Change: 1974 – 2001

Notes

As recently as 1974 Suicide Icefall (unofficial/colloquial name) contributed mass to Mendenhall Glacier. In recent years Suicide Icefall has begun to separate from Mendenhall Glacier; this is occurring mid-icefall – separating the accumulation area (above) from the ablation area (below). Here we include measurements of surface area of both the Mendenhall and Suicide Icefall glaciers, and a sum for the total glacier system. Change for periods between satellite images is presented for this glacier-system sum.

Glacier extents (outlines) were digitized manually with GLIMSView (freely available here) from Landsat satellite imagery (freely available here).

References

Beedle, M. J., 2010, GLIMS glacier database. Boulder, CO: National Snow and Ice Data Center/World Data Center for Glaciology, Digital Media.

Beedle, M. J. and Raup, B., 2008, A GLIMS inventory of the Juneau Icefield, Alaska, IGS International Workshop on World Glacier Inventory, Lanzhou, China, Sept. 20-24, 2008.