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

  • Sergey V. Popov (a1), Alexander N. Sheremet’Yev (a1), Valery N. Masolov (a1), Valery V. Lukin (a2), Anatoliy V. Mironov (a1) and Vadim S. Luchininov (a3)...

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. We used 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 is168.4 ± 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.

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References

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

  • Sergey V. Popov (a1), Alexander N. Sheremet’Yev (a1), Valery N. Masolov (a1), Valery V. Lukin (a2), Anatoliy V. Mironov (a1) and Vadim S. Luchininov (a3)...

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