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Helheim Glacier

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Journal Article

Rapid response of Helheim Glacier, southeast Greenland, to early Holocene climate warming Available to Purchase

Anna L.C. Hughes, Eleanor Rainsley, Tavi Murray, Christopher J. Fogwill, Christoph Schnabel, Sheng Xu
Journal: Geology
Published: 01 May 2012
Geology (2012) 40 (5): 427–430.
DOI: https://doi.org/10.1130/G32730.1
... Greenland, the present-day drainage route of Helheim Glacier, documents rapid retreat (∼80 m a −1 ) of this major marine-terminating outlet glacier at the close of the last glaciation. The glacier front retreated ∼80 km to within 20 km of the present-day (2010) position of Helheim Glacier in <1 ka, ca...
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Helheim Glacier (East Greenland) ice-cliff geometry schematic during calving event. Glacier-front geometries along the last 1 km of the A-Aʹ profile shown in Figure 3A are from terrestrial radar interferometer data and assumed hydrostatic equilibrium for ice mélange before slumping begins (A), during slump (B), and after calving event concludes (C). Black arrows indicate relative glaciostatic and hydrostatic stress imbalance along ice front assuming negligible backpressure from mélange (A,C) and after mass loss due to slumping (B). Bed elevation is based on mass-conservation gridding (Morlighem et al., 2014) where available, and is unknown elsewhere, as denoted by question marks. Time (UTC, 12 August 2014) for each panel is noted in upper right corner.

Helheim Glacier (East Greenland) ice-cliff geometry schematic during calvin... Open Access

Published: 22 March 2019
Figure 1. Helheim Glacier (East Greenland) ice-cliff geometry schematic during calving event. Glacier-front geometries along the last 1 km of the A-Aʹ profile shown in Figure 3A are from terrestrial radar interferometer data and assumed hydrostatic equilibrium for ice mélange before slumping
Image
Location map of Helheim Glacier, East Greenland. Surface elevation (m) is from IceBridge BedMachine Greenland (https://nsidc.org/data/IDBMG4; Morlighem et al., 2017) and plotted using Arctic Mapping Tools (Greene et al., 2017). Ice-front position is approximated by dashed white curve.

Location map of Helheim Glacier, East Greenland. Surface elevation (m) is f... Open Access

Published: 22 March 2019
Figure 2. Location map of Helheim Glacier, East Greenland. Surface elevation (m) is from IceBridge BedMachine Greenland ( https://nsidc.org/data/IDBMG4 ; Morlighem et al., 2017 ) and plotted using Arctic Mapping Tools ( Greene et al., 2017 ). Ice-front position is approximated by dashed white
Image
Helheim Glacier (East Greenland) elevation and speed during calving event. A: Surface elevation anomaly relative to 06:00 UTC, 12 August 2014. B: Line-of-sight speed during calving event, calculated as measured displacement between scenes (ranging from –1.39 cm to 5.56 cm, with 1.39 cm increment on existing color bar) divided by 120 s acquisition interval. Look direction of radar reference line is approximated by dashed white line. C: Surface elevation and speed profiles along profile A–Aʹ shown in first panel of A, colored by acquisition time with abscissa relative to initial calving front location. Thicker lines correspond to time slices depicted in A and B and are labeled with time stamp. In all panels, times (UTC, 12 August 2014) of data are noted.

Helheim Glacier (East Greenland) elevation and speed during calving event. ... Open Access

Published: 22 March 2019
Figure 3. Helheim Glacier (East Greenland) elevation and speed during calving event. A: Surface elevation anomaly relative to 06:00 UTC, 12 August 2014. B: Line-of-sight speed during calving event, calculated as measured displacement between scenes (ranging from –1.39 cm to 5.56 cm, with 1.39 cm
Journal Article

Ice-cliff failure via retrogressive slumping Open Access

Byron R. Parizek, Knut Christianson, Richard B. Alley, Denis Voytenko, Irena Vaňková, Timothy H. Dixon, Ryan T. Walker, David M. Holland
Journal: Geology
Published: 22 March 2019
Geology (2019) 47 (5): 449–452.
DOI: https://doi.org/10.1130/G45880.1
...Figure 1. Helheim Glacier (East Greenland) ice-cliff geometry schematic during calving event. Glacier-front geometries along the last 1 km of the A-Aʹ profile shown in Figure 3A are from terrestrial radar interferometer data and assumed hydrostatic equilibrium for ice mélange before slumping...
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Journal Article

Asynchronous response of marine-terminating outlet glaciers during deglaciation of the Fennoscandian Ice Sheet Available to Purchase

Chris R. Stokes, Geoffrey D. Corner, Monica C.M. Winsborrow, Katrine Husum, Karin Andreassen
Journal: Geology
Published: 01 May 2014
Geology (2014) 42 (5): 455–458.
DOI: https://doi.org/10.1130/G35299.1
.... Kjær K.H. Schjøth F. Weckström K. Ahlstrøm A.P. , 2012 , Rapid response of Helheim Glacier in Greenland to climate variability over the past century : Nature Geoscience , v. 5 , p. 37 – 41 , doi:10.1038/ngeo1349 . Briner J.P. Bini A.C. Anderson R.S. , 2009...
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View PDF for article title, Asynchronous response of marine-terminating outlet <span class="search-highlight">glaciers</span> during deglaciation of the Fennoscandian Ice Sheet
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The response of the southern Greenland ice sheet to the Holocene thermal maximum Available to Purchase

Nicolaj K. Larsen, Kurt H. Kjær, Benoit Lecavalier, Anders A. Bjørk, Sune Colding, Philippe Huybrechts, Karina E. Jakobsen, Kristian K. Kjeldsen, Karen-Luise Knudsen, Bent V. Odgaard, Jesper Olsen
Journal: Geology
Published: 01 April 2015
Geology (2015) 43 (4): 291–294.
DOI: https://doi.org/10.1130/G36476.1
..., which hosts the Helheim Glacier, we have a record from the Torqulertivit Imiat that reveals continued meltwater input to the lake except for a short interval, ca. 7.3–6.3 cal. kyr B.P. However, Torqulertivit Imiat is insensitive to small mass-balance changes, as the small glacier feeding the lake must...
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Estuaries beneath ice sheets Available to Purchase

Huw J. Horgan, Richard B. Alley, Knut Christianson, Robert W. Jacobel, Sridhar Anandakrishnan, Atsuhiro Muto, Lucas H. Beem, Matthew R. Siegfried
Journal: Geology
Published: 01 November 2013
Geology (2013) 41 (11): 1159–1162.
DOI: https://doi.org/10.1130/G34654.1
... on Helheim and Kangerdlugssuaq Glaciers, Greenland : Journal of Geophysical Research , v. 113 , F01004 , doi:10.1029/2007JF000837 . Parizek B.R. Christianson K. Anandakrishnan S. Alley R.B. Walker R.T. Edwards R.A. Wolfe D.S. Bertini G.T. Rinehart S.K...
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Glacier microseismicity Available to Purchase

Michael E. West, Christopher F. Larsen, Martin Truffer, Shad O'Neel, Laura LeBlanc
Journal: Geology
Published: 01 April 2010
Geology (2010) 38 (4): 319–322.
DOI: https://doi.org/10.1130/G30606.1
... K.G. Savage J.C. , 1970 , Icequakes on Athabasca Glacier : Journal of Geophysical Research , v. 75 , p. 1351 – 1362 , doi: 10.1029/JB075i008p01351 . Nettles M.N. 12 others , 2008 , Step-wise changes in glacier flow speed coincide with calving and glacial earthquakes at Helheim...
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Constraining landscape history and glacial erosivity using paired cosmogenic nuclides in Upernavik, northwest Greenland Available to Purchase

Lee B. Corbett, Paul R. Bierman, Joseph A. Graly, Thomas A. Neumann, Dylan H. Rood
Journal: GSA Bulletin
Published: 01 September 2013
GSA Bulletin (2013) 125 (9-10): 1539–1553.
DOI: https://doi.org/10.1130/B30813.1
... occurred during many previous interglacial periods throughout the Quaternary when global ice volume was low ( Lisiecki and Raymo, 2005 ). The retreat of the ice-sheet margin in Upernavik shows a pattern of retreat similar to that of the Helheim Glacier in southeastern Greenland. There, Hughes et al...
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View PDF for article title, Constraining landscape history and glacial erosivity using paired cosmogenic nuclides in Upernavik, northwest Greenland
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Unstable ice stream in Greenland during the Younger Dryas cold event Available to Purchase

Vincent Rinterknecht, Vincent Jomelli, Daniel Brunstein, Vincent Favier, Valérie Masson-Delmotte, Didier Bourlès, Laëtitia Leanni, Romain Schläppy
Journal: Geology
Published: 01 September 2014
Geology (2014) 42 (9): 759–762.
DOI: https://doi.org/10.1130/G35929.1
... of Jakobshavn Isbræ triggered by warm subsurface ocean waters : Nature Geoscience , v. 1 , p. 659 – 664 , doi:10.1038/ngeo316 . Hughes A.L.C. Rainsley E. Murray T. Fogwill C.J. Schnabel C. Xu S. , 2012 , Rapid response of Helheim Glacier, southeast Greenland, to early...
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Assessing the catastrophic break-up of Briksdalsbreen, Norway, associated with rapid climate change Available to Purchase

Jane K. Hart, Kathryn C. Rose, Richard I. Waller, David Vaughan-Hirsch, Kirk Martinez
Published: 01 May 2011
Journal of the Geological Society (2011) 168 (3): 673–688.
DOI: https://doi.org/10.1144/0016-76492010-024
... conduits Journal of Glaciology 1990 36 67 71 Howat I.M. Joughin I. Tulaczyk S. Gogineni S. Rapid retreat and acceleration of Helheim Glacier, east Greenland Geophysical Research Letters 2005 32 L22502 Howat I.M. Joughin I. Scambos T.A. Rapid changes...
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Moment Tensor Inversions of Icequakes on Gornergletscher, Switzerland Available to Purchase

Fabian Walter, John F. Clinton, Nicholas Deichmann, Douglas S. Dreger, Sarah E. Minson, Martin Funk
Published: 01 April 2009
Bulletin of the Seismological Society of America (2009) 99 (2A): 852–870.
DOI: https://doi.org/10.1785/0120080110
... - 57 . Joughin I. Howat I. Alley R. B. Ekstrom G. Fahnestock M. Moon T. Nettles M. Truffer M. Tsai V. ( 2008 ). Ice-front variation and tidewater behavior on Helheim and Kangerdlugssuaq Glaciers, Greenland , J. Geophys. Res. 113 , F01004 , 11  pp...
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Glacial history and landscape evolution of southern Cumberland Peninsula, Baffin Island, Canada, constrained by cosmogenic 10 Be and 26 Al Available to Purchase

Lee B. Corbett, Paul R. Bierman, P. Thompson Davis
Journal: GSA Bulletin
Published: 01 July 2016
GSA Bulletin (2016) 128 (7-8): 1173–1192.
DOI: https://doi.org/10.1130/B31402.1
.... , Schnabel , C. , and Xu , S. , 2012 , Rapid response of Helheim glacier, southeast Greenland, to early Holocene climate warming : Geology , v. 40 , no. 5 , p. 427 – 430 , doi:10.1130/G32730.1. Hyatt , J. , 1992 , Cavity development in ice-rich permafrost, Pangnirtung, Baffin Island...
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View PDF for article title, Glacial history and landscape evolution of southern Cumberland Peninsula, Baffin Island, Canada, constrained by cosmogenic 10 Be and 26 Al
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2020 Annual Meeting Available to Purchase

Published: 01 April 2020
Seismological Research Letters (2020) 91 (2B): 1095–1338.
DOI: https://doi.org/10.1785/0220200043
... Events at Helheim Glacier. Behm, M., Walter, J. I., Yan, P., Holland, D. M. 43. Detecting Characteristic Microseismic Signals and Precursory Signals Related to the Cavity Roof Stability for Solution Salt Mining in Dingyuan, China. Zhang, H., Qian, J., Wang, K., Tan, Y. 44. Abundant Spontaneous...
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