Austral Winter 1957
Dr. John Behrendt, NSF
Geologist Edward Thiel reducing data using the Friden calculator inside the science building at Ellsworth Station. The instrument in the lower right is a Frost gravimeter used to measure the sea tide of the floating Filchner Ice Shelf. Ellsworth was one of seven U.S. research stations constructed for the International Geophysical Year (IGY), 1957-1958. Thiel was killed during a later scientific expedition when the P2V airplane he was a passenger in crashed at Wilkes Station, Antarctica, in November 1961.
, Deep Freeze
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