Penn State researcher develops new seismometer for studying ice sheets
Friday, December 13, 2013 - 07:30
in Earth & Climate
On a cloudy day in Antarctica, it's impossible to see the snow. With the sunlight diffused behind the clouds, there are no shadows and even tall drifts are invisible in the endless sea of white. Researchers here use bamboo poles to mark their path and to help orient themselves as they tread the ice sheet, looking for clues about how climate has changed over time.