Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier

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Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier. / Booth, Adam D.; Christoffersen, Poul; Schoonman, Charlotte; Clarke, Andy; Hubbard, Bryn; Law, Rob; Doyle, Samuel H.; Chudley, Thomas R.; Chalari, Athena.

In: Geophysical Research Letters, Vol. 47, No. 13, e2020GL088148, 16.07.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

Booth, AD, Christoffersen, P, Schoonman, C, Clarke, A, Hubbard, B, Law, R, Doyle, SH, Chudley, TR & Chalari, A 2020, 'Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier', Geophysical Research Letters, vol. 47, no. 13, e2020GL088148. https://doi.org/10.1029/2020GL088148

APA

Booth, A. D., Christoffersen, P., Schoonman, C., Clarke, A., Hubbard, B., Law, R., Doyle, S. H., Chudley, T. R., & Chalari, A. (2020). Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier. Geophysical Research Letters, 47(13), [e2020GL088148]. https://doi.org/10.1029/2020GL088148

Vancouver

Booth AD, Christoffersen P, Schoonman C, Clarke A, Hubbard B, Law R et al. Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier. Geophysical Research Letters. 2020 Jul 16;47(13). e2020GL088148. https://doi.org/10.1029/2020GL088148

Author

Booth, Adam D. ; Christoffersen, Poul ; Schoonman, Charlotte ; Clarke, Andy ; Hubbard, Bryn ; Law, Rob ; Doyle, Samuel H. ; Chudley, Thomas R. ; Chalari, Athena. / Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier. In: Geophysical Research Letters. 2020 ; Vol. 47, No. 13.

Bibtex - Download

@article{36f1d1fc5a47484cae9707ba9e6a0fa7,
title = "Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier",
abstract = "Distributed Acoustic Sensing (DAS) is a new technology in which seismic energy is detected, at high spatial and temporal resolution, using the propagation of laser pulses in a fibre‐optic cable. We show analyses from the first glaciological borehole DAS deployment to measure the englacial and subglacial seismic properties of Store Glacier, a fast‐flowing outlet of the Greenland Ice Sheet. We record compressional and shear waves in 1043 m‐deep vertical seismic profiles, sampled at 10 m vertical resolution, and detect a transition from isotropic to anisotropic ice at 84% of ice thickness, consistent with the Holocene‐Wisconsin transition. We identify subglacial reflections originating from the base of a 20 m‐thick layer of consolidated sediment and, from attenuation measurements, interpret temperate ice in the lowermost 100 m of the glacier. Our findings highlight the promising potential of DAS technology to constrain the seismic properties of glaciers and ice sheets.",
author = "Booth, {Adam D.} and Poul Christoffersen and Charlotte Schoonman and Andy Clarke and Bryn Hubbard and Rob Law and Doyle, {Samuel H.} and Chudley, {Thomas R.} and Athena Chalari",
year = "2020",
month = jul,
day = "16",
doi = "10.1029/2020GL088148",
language = "English",
volume = "47",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "13",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Distributed Acoustic Sensing (DAS) of Seismic Properties in a Borehole drilled on a Fast‐Flowing Greenlandic Outlet Glacier

AU - Booth, Adam D.

AU - Christoffersen, Poul

AU - Schoonman, Charlotte

AU - Clarke, Andy

AU - Hubbard, Bryn

AU - Law, Rob

AU - Doyle, Samuel H.

AU - Chudley, Thomas R.

AU - Chalari, Athena

PY - 2020/7/16

Y1 - 2020/7/16

N2 - Distributed Acoustic Sensing (DAS) is a new technology in which seismic energy is detected, at high spatial and temporal resolution, using the propagation of laser pulses in a fibre‐optic cable. We show analyses from the first glaciological borehole DAS deployment to measure the englacial and subglacial seismic properties of Store Glacier, a fast‐flowing outlet of the Greenland Ice Sheet. We record compressional and shear waves in 1043 m‐deep vertical seismic profiles, sampled at 10 m vertical resolution, and detect a transition from isotropic to anisotropic ice at 84% of ice thickness, consistent with the Holocene‐Wisconsin transition. We identify subglacial reflections originating from the base of a 20 m‐thick layer of consolidated sediment and, from attenuation measurements, interpret temperate ice in the lowermost 100 m of the glacier. Our findings highlight the promising potential of DAS technology to constrain the seismic properties of glaciers and ice sheets.

AB - Distributed Acoustic Sensing (DAS) is a new technology in which seismic energy is detected, at high spatial and temporal resolution, using the propagation of laser pulses in a fibre‐optic cable. We show analyses from the first glaciological borehole DAS deployment to measure the englacial and subglacial seismic properties of Store Glacier, a fast‐flowing outlet of the Greenland Ice Sheet. We record compressional and shear waves in 1043 m‐deep vertical seismic profiles, sampled at 10 m vertical resolution, and detect a transition from isotropic to anisotropic ice at 84% of ice thickness, consistent with the Holocene‐Wisconsin transition. We identify subglacial reflections originating from the base of a 20 m‐thick layer of consolidated sediment and, from attenuation measurements, interpret temperate ice in the lowermost 100 m of the glacier. Our findings highlight the promising potential of DAS technology to constrain the seismic properties of glaciers and ice sheets.

U2 - 10.1029/2020GL088148

DO - 10.1029/2020GL088148

M3 - Article

VL - 47

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 13

M1 - e2020GL088148

ER -

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