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June 23, 2011
Retreat of Columbia Glacier, Columbia Icefield, Canada
The Columbia Glacier drains west from Columbia Icefield into Alberta. The glacier in 1964 was 8.5 km long, by 1980 9.5 km long and in 2009 6.5 km long. The glacier drops rapidly from the plateau area over a major ice fall, which created a series of ogives, as seen in this 1964 Austin Post (USGS) photograph. Ogives are annual wave bulges that form at the base of an icefall …
Dean of Academic Affairs at Nichols College and Professor of Environmental Science at Nichols College in Massachusetts since 1989. Glaciologist directing the North Cascade Glacier Climate Project since 1984. This project monitors the mass balance and behavior of more glaciers than any other in North America.