1887

Abstract

Summary

In presented work, authors applied multiple geophysical methods, to monitor and estimate the seasonal changes in both the active and permafrost layers. The study site, located near the Polish Polar station in Svalbard, is unique due to its location and the environmental processes occurring in this region. The two seismic lines were deigned to image the structure between coast and mountains and post galcial sediments in formt of the retreating glacier. The acquisition of the same lanes was repeated in two consecutive seasons in Autumn 2017 and Spring2018, to develop optimal acquisition and processing methodology. To image seasonal changes, multiple geophysical methods (Seismic Imaging, Travel time tomography, surface waves methods, ERT, Thermal monitoring) were used, in both seasons. As a result, the optimal acquisition was designed. The optimal processing, assumes the use of ERT, GPR, MASW, Seismic travel-time Tomography and Reflection Imaging in presented order. The interpretation of the data shows high variability of the active layer and possibly bottom of the permafrost.

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/content/papers/10.3997/2214-4609.201902454
2019-09-08
2020-02-20
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References

  1. BœlumK., JohansenT.A., JohnsenH., RødK., RuudB.O., BraathenA.
    [2012]. Subsurface structures of the Longyearbyen CO2 Lab study area in Central Spitsbergen (Arctic Norway), as mapped by reflection seismic data, Norwegian Journal of Geology, 92, 377–389.
    [Google Scholar]
  2. GilbertG.L, O’NeillH.B., NemecW., ThielC., ChristiansedH.H., BuylaertJ-P.
    [2018]. Late Quaternary sedimentation and permafrost development in a Svalbard fjord-valley, Norwegian high Arctic, Sedimentology, 65, 2531–2558, doi: 10.1111/sed.12476
    https://doi.org/10.1111/sed.12476 [Google Scholar]
  3. KeatingK., BinleyA., BenseV., Van DamR.L., ChristiansenH.H.
    [2018]. Combined Geophysical Measurements Provide Evidence for Unfrozen Water in Permafrost in the Adventdalen Valley in Svalbard, Geophysical Research Letters, 45 (15), 7606–7614, doi: 10.1029/2017GL076508
    https://doi.org/10.1029/2017GL076508 [Google Scholar]
  4. Marciniak, A., Stan-Kieczek, I., Idziak, A., Majdański, M.
    [2019]. Uncertainty based multi-step seismic analysis for the near surface imaging, Open Geosciences, In press.
    [Google Scholar]
  5. MajdańskiM., TrzeciakM., GaczyńskiE., MaksymA.
    [2016]. Seismic velocity estimation from post-critical wide-angle reflections in layered structures Studia Geophysica etGeodaetica60 (3), 565–582
    [Google Scholar]
  6. MajdanskiM., GrzybJ, OwocB, KrogulecT, WysockaA.
    [2018]. Near-surface structure of the Carpathian Foredeep marginal zone in the Roztocze Hills area, Acta Geophysica (2018) 66:179–189, doi: 10.1007/s11600‑018‑0131‑4
    https://doi.org/10.1007/s11600-018-0131-4 [Google Scholar]
  7. TsujiT., JohansedT.A., RuudB.O., IdekaT., MatsoukaT.
    [2012]. Surface-wave analysis for identifying unfrozen zones in subglacial sediments, Geophysics, 77 (3), EN17–EN27, doi: 10.1190/GEO2011‑0222.1
    https://doi.org/10.1190/GEO2011-0222.1 [Google Scholar]
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