Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet.

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Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet. / Doyle, Samuel Huckerby; Hubbard, Alun Lloyd; Dow, C. F.; Jones, Gwawr Angharad; Fitzpatrick, Andrew Alexander William; Gusmeroli, A.; Kulessa, B.; Lindback, K.; Pettersson, R.; Box, J. E.

In: Cryosphere, Vol. 7, No. 1, 01.2013, p. 129 - 140.

Research output: Contribution to journalArticle

Harvard

Doyle, SH, Hubbard, AL, Dow, CF, Jones, GA, Fitzpatrick, AAW, Gusmeroli, A, Kulessa, B, Lindback, K, Pettersson, R & Box, JE 2013, 'Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet.' Cryosphere, vol. 7, no. 1, pp. 129 - 140. https://doi.org/10.5194/tc-7-129-2013

APA

Doyle, S. H., Hubbard, A. L., Dow, C. F., Jones, G. A., Fitzpatrick, A. A. W., Gusmeroli, A., ... Box, J. E. (2013). Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet. Cryosphere, 7(1), 129 - 140. https://doi.org/10.5194/tc-7-129-2013

Author

Doyle, Samuel Huckerby ; Hubbard, Alun Lloyd ; Dow, C. F. ; Jones, Gwawr Angharad ; Fitzpatrick, Andrew Alexander William ; Gusmeroli, A. ; Kulessa, B. ; Lindback, K. ; Pettersson, R. ; Box, J. E. / Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet. In: Cryosphere. 2013 ; Vol. 7, No. 1. pp. 129 - 140.

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@article{4ba9b6dedabd4aa688c259cde5ac9c59,
title = "Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet.",
abstract = "We present detailed records of lake discharge, ice motion and passive seismicity capturing the behaviour and processes preceding, during and following the rapid drainage of a 4 km2 supraglacial lake through 1.1-km-thick ice on the western margin of the Greenland Ice Sheet. Peak discharge of 3300 m3 s−1 coincident with maximal rates of vertical uplift indicates that surface water accessed the ice–bed interface causing widespread hydraulic separation and enhanced basal motion. The differential motion of four global positioning system (GPS) receivers located around the lake record the opening and closure of the fractures through which the lake drained. We hypothesise that the majority of discharge occurred through a 3-km-long fracture with a peak width averaged across its wetted length of 0.4 m. We argue that the fracture's kilometre-scale length allowed rapid discharge to be achieved by combining reasonable water velocities with sub-metre fracture widths. These observations add to the currently limited knowledge of in situ supraglacial lake drainage events, which rapidly deliver large volumes of water to the ice–bed interface.",
author = "Doyle, {Samuel Huckerby} and Hubbard, {Alun Lloyd} and Dow, {C. F.} and Jones, {Gwawr Angharad} and Fitzpatrick, {Andrew Alexander William} and A. Gusmeroli and B. Kulessa and K. Lindback and R. Pettersson and Box, {J. E.}",
note = "Doyle, S. H., Hubbard, A. L., Dow, C. F., Jones, G. A., Fitzpatrick, A. A. W., Gusmeroli, A., Kulessa, B., Lindback, K., Pettersson, R. Box, J. E. (2013). Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet.The Cryosphere, 7 (1), 129 - 140.",
year = "2013",
month = "1",
doi = "10.5194/tc-7-129-2013",
language = "English",
volume = "7",
pages = "129 -- 140",
journal = "Cryosphere",
issn = "1994-0416",
publisher = "Copernicus Publications",
number = "1",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet.

AU - Doyle, Samuel Huckerby

AU - Hubbard, Alun Lloyd

AU - Dow, C. F.

AU - Jones, Gwawr Angharad

AU - Fitzpatrick, Andrew Alexander William

AU - Gusmeroli, A.

AU - Kulessa, B.

AU - Lindback, K.

AU - Pettersson, R.

AU - Box, J. E.

N1 - Doyle, S. H., Hubbard, A. L., Dow, C. F., Jones, G. A., Fitzpatrick, A. A. W., Gusmeroli, A., Kulessa, B., Lindback, K., Pettersson, R. Box, J. E. (2013). Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet.The Cryosphere, 7 (1), 129 - 140.

PY - 2013/1

Y1 - 2013/1

N2 - We present detailed records of lake discharge, ice motion and passive seismicity capturing the behaviour and processes preceding, during and following the rapid drainage of a 4 km2 supraglacial lake through 1.1-km-thick ice on the western margin of the Greenland Ice Sheet. Peak discharge of 3300 m3 s−1 coincident with maximal rates of vertical uplift indicates that surface water accessed the ice–bed interface causing widespread hydraulic separation and enhanced basal motion. The differential motion of four global positioning system (GPS) receivers located around the lake record the opening and closure of the fractures through which the lake drained. We hypothesise that the majority of discharge occurred through a 3-km-long fracture with a peak width averaged across its wetted length of 0.4 m. We argue that the fracture's kilometre-scale length allowed rapid discharge to be achieved by combining reasonable water velocities with sub-metre fracture widths. These observations add to the currently limited knowledge of in situ supraglacial lake drainage events, which rapidly deliver large volumes of water to the ice–bed interface.

AB - We present detailed records of lake discharge, ice motion and passive seismicity capturing the behaviour and processes preceding, during and following the rapid drainage of a 4 km2 supraglacial lake through 1.1-km-thick ice on the western margin of the Greenland Ice Sheet. Peak discharge of 3300 m3 s−1 coincident with maximal rates of vertical uplift indicates that surface water accessed the ice–bed interface causing widespread hydraulic separation and enhanced basal motion. The differential motion of four global positioning system (GPS) receivers located around the lake record the opening and closure of the fractures through which the lake drained. We hypothesise that the majority of discharge occurred through a 3-km-long fracture with a peak width averaged across its wetted length of 0.4 m. We argue that the fracture's kilometre-scale length allowed rapid discharge to be achieved by combining reasonable water velocities with sub-metre fracture widths. These observations add to the currently limited knowledge of in situ supraglacial lake drainage events, which rapidly deliver large volumes of water to the ice–bed interface.

UR - http://hdl.handle.net/2160/26864

U2 - 10.5194/tc-7-129-2013

DO - 10.5194/tc-7-129-2013

M3 - Article

VL - 7

SP - 129

EP - 140

JO - Cryosphere

JF - Cryosphere

SN - 1994-0416

IS - 1

ER -

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