Scientist measuring glacier speed

Scientist measuring glacier speed

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Credit: ASHLEY COOPER, VISUALS UNLIMITED /SCIENCE PHOTO LIBRARY

Caption: Dr. Ian Bartholomew using dye tracing techniques as part of a study to measure the speed of the Russell Glacier near Kangerlussuag, Greenland. The study is looking at how increasing quantities of melt water are affecting the glaciers speed and recession. It is thought that the melt water helps lubricates the glaciers base enabling it to flow faster. As part of the study reflective poles were drilled 4 meters into the ice to measure their speed at various positions on the glacier. Within a month all the poles had fallen over as the glacier melted down over 4 meters

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