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Abstract

Summary

The use of fibre as a Distributed Acoustic Sensor (DAS) is a recently developed technology with enormous potential, and, until recently, never tested in Antarctica. Here we show how DAS methods can be used to record icequakes, and to interrogate the internal properties of ice using seismic refraction studies and vertical seismic profiling. In the Austral Summer of 2020, we used fibre optic cables to study the Rutford Ice Stream and the Skytrain Ice Rise of the West Antarctic Ice Sheet.

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/content/papers/10.3997/2214-4609.202131076
2021-03-01
2024-06-15
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References

  1. Brisbourne, A. M.
    , C.Martin, A. M.Smith, A.Baird, J. M.Kendall & J.Kingslake, 2019. Constraining recent ice flow history at Korff Ice Rise, West Antarctica, using radar and seismic measurements of ice fabric, Journal of Geophysical Research: Earth Surface, 124, 175–194.
    [Google Scholar]
  2. , J. M.Kendall, S.-K.Kufner, T. S.Hudson, A. M. and Smith, A. M., 2021. Downhole distributed acoustic seismic profiling at Skytrain Ice Rise, West Antarctica, The Cryosphere Discuss., https://doi.org/10.5194/tc-2021-1, in review.
    [Google Scholar]
  3. Hudson, T.
    , A.Baird, J-M.Kendall, S.-K.Kufner, A.Brisbourn, A.Smith, A.Butcher, A.Chalari & A.Clarke, 2020. Distributed Acoustic Sensing (DAS) for natural microseismicity studies: A case study from Antarctica, Earth and Space Science Open Archive (submit. to Journal Geophysical Research - Earth Surface), doi: 10.1002/essoar.10505225.1
    https://doi.org/10.1002/essoar.10505225.1 [Google Scholar]
  4. Kufner, S.-K.
    , A.Brisbourne, A.Smith., T.Hudson, et al., 2021. Not all icequakes are created equal: basal icequakes suggest diverse bed deformation mechanisms at Rutford Ice Stream, West Antarctica, in reviewJournal Geophysical Research – Earth Surface.
    [Google Scholar]
  5. Smith, E. C.
    , A.Baird, J. M.Kendall, C.Martin, R. S.White, A. M.Brisbourne & A. M.Smith, 2017. Ice fabric in an Antarctic ice stream interpreted from seismic anisotropy, Geophysical Research Letters, 44, 8, 3710–3718.
    [Google Scholar]
  6. Stork, A.
    , A.Baird, S. A.Horne, G.Naldrett, S.Lapins, J.M.Kendall, J.Wookey, J.Verdon, A.Clarke & A.Williams, 2020. Application of machine learning to microseismic event detection in distributed acoustic sensing data, Geophysics, 85, KS149-KS160. https://doi.org/10.1190/geo2019-0774.1
    [Google Scholar]
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