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| Mist escapes from the ice at the edge of a Greenland glacier. Photo courtesy of Alberto Behar, Jet Propulsion Laboratory. |
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| Researchers are deploying GPS units on glaciers in Greenland and Alaska to track the flow of ice out to sea. Team members from Ohio State University, NASA�s Jet Propulsion Laboratory, and the University of Colorado-Boulder/NOAA Cooperative Institute for Research in Environmental Sciences reported their early results at the American Geophysical Union meeting in San Francisco. Here a helicopter carries members of a research team from base camp to a Greenland glacier. Photo courtesy of Alberto Behar, Jet Propulsion Laboratory. |
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| A member of the research team installs GPS equipment in Greenland. Photo courtesy of Alberto Behar, Jet Propulsion Laboratory. |
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| Alberto Behar, an Investigation Scientist at the Jet Propulsion Laboratory, climbs out of a helicopter onto a Greenland glacier. He is tethered to the helicopter for safety, and a GPS unit is at his feet. Photo courtesy of Alberto Behar, Jet Propulsion Laboratory. |