Researchers William Harrison and Roman Motyka, in conjunction with the Geophysical Institute of Alaska, used satellite imagery to monitor Variegated Glacier in the St. Elias Mountains of Alaska. Variegated Glacier has an impressive history of seven surges during the 20th Century, with the latest surge terminating in 2004. The Geophysical Institute used the imagery to evaluate the evolution of surges as well as their causes and timing. Specifically, the imagery was used to compare and contrast snow, cloud cover, and crevassing in order to shed light on factors that may be affecting the glacier and causing this environmental event.
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GIS Weekly Magazine
Susan Smith
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Look for the next issue of GIS Weekly Magazine on May 28, 2012.
Each GISWeekly Review delivers to its readers news concerning the latest developments in the GIS industry, along with a selection of other articles that we feel you might find interesting. |
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