Velocity of radio-wave propagation in ice at Vostok station, Antarctica

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Abstract:

During the austral summer field season of the Russian Antarctic Expedition in 1999/2000, wide-angle reflections experiments were performed in the vicinity of the Russian station Vostok. A 60 MHz ice radar system with 12-bit digital recording was used. The measurements were taken along two perpendicular lines directed south-north and east-west with a distance of 200 m between marks.Weused a one-layer model (without snow-firn zone influence) for the calculations.We calculate that the average velocity of radio-wave propagation in the ice sheet is 168.4 ± 0.5 m µs-1.The same velocity was derived from hyperbolic diffractions from internal discontinuities. The results allow more accurate depth interpretation of radio-echo soundings.

Document Type: Research Article

DOI: http://dx.doi.org/10.3189/172756503781830755

Publication date: March 1, 2003

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  • The Journal of Glaciology is published six times per year. It accepts submissions from any discipline related to the study of snow and ice. All articles are peer reviewed. The Journal is included in the ISI Science Citation Index.
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