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Scientist with data notebook

By Alaska Science Center
Female wearing safety gear, using radio-echo-sounding, and entering data on handheld computer on Wolverine Glacier.
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Detailed Description

Scientist uses radio-echo-sounding to study firn compaction on Wolverine Glacier, Alaska. Radio-echo sounding (RES) is a technique used by glaciologists to measure the internal structure, ice thickness and sub-ice morphology of glaciers. This tool is equivalent to X-rays for the medical profession and the physicists. 

Sources/Usage

Public Domain.

Photo by Louis Sass, U.S. Geological Survey