Radio-echo sounding of Crary Ice Rise reveals abundant marine ice in former ice shelf rifts and basal crevasses

Hillebrand, Trevor R.; Conway, Howard; Koutnik, Michelle; Martín, Carlos; Paden, John; Winberry, J. Paul

doi:10.1017/jog.2021.17

Title: Radio-echo sounding of Crary Ice Rise reveals abundant marine ice in former ice shelf rifts and basal crevasses

Journal Article · Fri Mar 05 00:00:00 EST 2021 · Journal of Glaciology

DOI:https://doi.org/10.1017/jog.2021.17· OSTI ID:1774446

^[1]; Conway, Howard ^[1]; Koutnik, Michelle ^[1];

^[2];

^[3]; Winberry, J. Paul ^[4]

Univ. of Washington, Seattle, WA (United States)
British Antarctic Survey, Cambridge (United Kingdom)
Univ. of Kansas, Lawrence, KS (United States)
Central Washington Univ., Ellensburg, WA (United States)

Crary Ice Rise formed after the Ross Ice Shelf re-grounded ~1 kyr BP. We present new ice-penetrating radar data from two systems operating at center frequencies of 7 and 750 MHz that confirm the ice rise is composed of a former ice shelf buried by subsequent accumulation. Stacks of englacial diffraction hyperbolas are present almost everywhere across the central ice rise and extend up to ~350 m above the bed. In many cases, bed reflections beneath the diffraction hyperbolas are obscured for distances up to 1 km. Waveform modeling indicates that the diffraction hyperbolas are likely caused by marine ice deposits in former basal crevasses and rifts. The in-filling of rifts and basal crevasses may have strengthened the connection between the ice rise and the surrounding ice shelf, which could have influenced local and regional ice dynamics. Three internal reflection horizons mark the upper limit of disturbed ice and diffraction hyperbolas in different sections of the ice rise, indicating at least three stages of flow stabilization across the ice rise. A surface lineation visible in MODIS imagery corresponds spatially to deepening and strong deformation of these layers, consistent with the characteristics of former grounding lines observed elsewhere in Antarctica.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE; National Science Foundation (NSF); National Aeronautics and Space Administration (NASA)

Grant/Contract Number:: 89233218CNA000001; 1443356; 1443552; NNX16AH54; ACI-1443054

OSTI ID:: 1774446

Report Number(s):: LA-UR-20-24303

Journal Information:: Journal of Glaciology, Vol. 67, Issue 264; ISSN 0022-1430

Publisher:: International Glaciological SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (58)

Properties of a marine ice layer under the Amery Ice Shelf, East Antarctica Craven, Mike; Allison, Ian; Fricker, Helen Amanda Journal of Glaciology, Vol. 55, Issue 192 https://doi.org/10.3189/002214309789470941	journal	January 2009
Siple Coast Project research of Crary Ice Rise and the mouths of Ice Streams B and C, West Antarctica: review and new perspectives Bindschadler, Robert Journal of Glaciology, Vol. 39, Issue 133 https://doi.org/10.1017/S0022143000016439	journal	January 1993
Antarctic Mapping Tools for Matlab Greene, Chad A.; Gwyther, David E.; Blankenship, Donald D. Computers & Geosciences, Vol. 104 https://doi.org/10.1016/j.cageo.2016.08.003	journal	July 2017
gprMax: Open source software to simulate electromagnetic wave propagation for Ground Penetrating Radar Warren, Craig; Giannopoulos, Antonios; Giannakis, Iraklis Computer Physics Communications, Vol. 209 https://doi.org/10.1016/j.cpc.2016.08.020	journal	December 2016
Bedmap2: improved ice bed, surface and thickness datasets for Antarctica Fretwell, P.; Pritchard, H. D.; Vaughan, D. G. The Cryosphere, Vol. 7, Issue 1 https://doi.org/10.5194/tc-7-375-2013	journal	January 2013
The Dynamics of the Ross Ice Shelf Revealed by Radio Echo-Sounding Neal, C. S. Journal of Glaciology, Vol. 24, Issue 90 https://doi.org/10.1017/S0022143000014817	journal	January 1979
Extensive retreat and re-advance of the West Antarctic Ice Sheet during the Holocene Kingslake, J.; Scherer, R. P.; Albrecht, T. Nature, Vol. 558, Issue 7710 https://doi.org/10.1038/s41586-018-0208-x	journal	June 2018
Century-scale discharge stagnation and reactivation of the Ross ice streams, West Antarctica Hulbe, C.; Fahnestock, M. Journal of Geophysical Research, Vol. 112, Issue F3 https://doi.org/10.1029/2006JF000603	journal	January 2007
Radar signatures beneath a surface topographic lineation near the outlet of Kamb Ice Stream and Engelhardt Ice Ridge, West Antarctica Matsuoka, Kenichi; Gades, Anthony; Conway, Howard Annals of Glaciology, Vol. 50, Issue 51 https://doi.org/10.3189/172756409789097595	journal	January 2009
The Reference Elevation Model of Antarctica Howat, Ian M.; Porter, Claire; Smith, Benjamin E. The Cryosphere, Vol. 13, Issue 2 https://doi.org/10.5194/tc-13-665-2019	journal	January 2019
Field Studies of Bottom Crevasses in the Ross Ice Shelf, Antarctica Jezek, Kenneth C.; Bentley, Charles R. Journal of Glaciology, Vol. 29, Issue 101 https://doi.org/10.1017/S0022143000005189	journal	January 1983
Airborne fine-resolution UHF radar: an approach to the study of englacial reflections, firn compaction and ice attenuation rates Lewis, Cameron; Gogineni, Sivaprasad; Rodriguez-Morales, Fernando Journal of Glaciology, Vol. 61, Issue 225 https://doi.org/10.3189/2015JoG14J089	journal	January 2015
Nature of radio echo layering in the Antarctic Ice Sheet detected by a two-frequency experiment Fujita, Shuji; Maeno, Hideo; Uratsuka, Seiho Journal of Geophysical Research: Solid Earth, Vol. 104, Issue B6 https://doi.org/10.1029/1999JB900034	journal	June 1999
Grounding line movement and ice shelf buttressing in marine ice sheets Goldberg, D.; Holland, D. M.; Schoof, C. Journal of Geophysical Research, Vol. 114, Issue F4 https://doi.org/10.1029/2008JF001227	journal	January 2009
Brine, englacial structure and basal properties near the terminus of McMurdo Ice Shelf, Antarctica Campbell, S.; Courville, Z.; Sinclair, S. Annals of Glaciology, Vol. 58, Issue 74 https://doi.org/10.1017/aog.2017.26	journal	April 2017
SAR processing of radar echo sounder data Leuschen, C.; Gogineni, S.; Tammana, D. IGARSS 2000. IEEE 2000 International Geoscience and Remote Sensing Symposium. Taking the Pulse of the Planet: The Role of Remote Sensing in Managing the Environment. Proceedings (Cat. No.00CH37120) https://doi.org/10.1109/IGARSS.2000.859643	conference	January 2000
Variability in the mass flux of the Ross ice streams, West Antarctica, over the last millennium Catania, Ginny; Hulbe, Christina; Conway, Howard Journal of Glaciology, Vol. 58, Issue 210 https://doi.org/10.3189/2012JoG11J219	journal	January 2012
Radar detection of the brine extent at McMurdo Ice Shelf, Antarctica, and its control by snow accumulation: BRINE EXTENT AT MCMURDO ICE SHELF Grima, Cyril; Greenbaum, Jamin S.; Lopez Garcia, Erika J. Geophysical Research Letters, Vol. 43, Issue 13 https://doi.org/10.1002/2016GL069524	journal	July 2016
Correction to: force, mass, and energy budgets of the Crary Ice Rise complex, Antarctica MacAyeal, R.; Bindschadler, Robert A.; Stephenson, Simon Journal of Glaciology, Vol. 35, Issue 119 https://doi.org/10.3189/S0022143000004901	journal	January 1989
Electromagnetic properties of sea ice Morey, R. M.; Kovacs, A.; Cox, G. F. N. Cold Regions Science and Technology, Vol. 9, Issue 1 https://doi.org/10.1016/0165-232X(84)90048-X	journal	June 1984
Basal conditions at the grounding zone of Whillans Ice Stream, West Antarctica, from ice-penetrating radar: WHILLANS GROUNDING ZONE RADAR SURVEY Christianson, Knut; Jacobel, Robert W.; Horgan, Huw J. Journal of Geophysical Research: Earth Surface, Vol. 121, Issue 11 https://doi.org/10.1002/2015JF003806	journal	November 2016
Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution Matsuoka, Kenichi; Hindmarsh, Richard C. A.; Moholdt, Geir Earth-Science Reviews, Vol. 150 https://doi.org/10.1016/j.earscirev.2015.09.004	journal	November 2015
Core Drilling Through the Ross Ice Shelf (Antarctica) Confirmed Basal Freezing Zotikov, I. A.; Zagorodnov, V. S.; Raikovsky, J. V. Science, Vol. 207, Issue 4438 https://doi.org/10.1126/science.207.4438.1463	journal	March 1980
An englacial hydrologic system of brine within a cold glacier: Blood Falls, McMurdo Dry Valleys, Antarctica Badgeley, Jessica A.; Pettit, Erin C.; Carr, Christina G. Journal of Glaciology, Vol. 63, Issue 239 https://doi.org/10.1017/jog.2017.16	journal	April 2017
Marine ice in Larsen Ice Shelf Holland, Paul R.; Corr, Hugh F. J.; Vaughan, David G. Geophysical Research Letters, Vol. 36, Issue 11 https://doi.org/10.1029/2009GL038162	journal	January 2009
Evidence for floatation or near floatation in the mouth of Kamb Ice Stream, West Antarctica, prior to stagnation Catania, G. A.; Conway, H.; Raymond, C. F. Journal of Geophysical Research, Vol. 111, Issue F1 https://doi.org/10.1029/2005JF000355	journal	January 2006
Force, Mass, and Energy Budgets of the Crary Ice Rise Complex, Antarctica Macayeal, D. R.; Bindschadler, R. A.; Shabtaie, S. Journal of Glaciology, Vol. 33, Issue 114 https://doi.org/10.1017/S0022143000008728	journal	January 1987
Significant marine-ice accumulation in the ablation zone beneath an Antarctic ice shelf Khazendar, A.; Tison, J. -L.; Stenni, B. Journal of Glaciology, Vol. 47, Issue 158 https://doi.org/10.3189/172756501781832160	journal	January 2001
Distribution of marine ice beneath the Amery Ice Shelf Fricker, Helen Amanda; Popov, Sergey; Allison, Ian Geophysical Research Letters, Vol. 28, Issue 11 https://doi.org/10.1029/2000GL012461	journal	June 2001
West Antarctic ice-stream discharge variability: mechanism, controls and pattern of grounding-line retreat Hulbe, Christina L.; Fahnestock, Mark A. Journal of Glaciology, Vol. 50, Issue 171 https://doi.org/10.3189/172756504781829738	journal	January 2004
Recent survey of brine infiltration in McMurdo Ice Shelf, Antarctica Morse, D. L.; Waddington, E. D. Annals of Glaciology, Vol. 20 https://doi.org/10.3189/1994AoG20-1-215-218	journal	January 1994
Subglacial melt channels and fracture in the floating part of Pine Island Glacier, Antarctica: SUBGLACIAL CHANNELS AND CREVASSING Vaughan, David G.; Corr, Hugh F. J.; Bindschadler, Robert A. Journal of Geophysical Research: Earth Surface, Vol. 117, Issue F3 https://doi.org/10.1029/2012JF002360	journal	August 2012
Electromagnetic Sounding of Bottom Crevasses on the Ross Ice Shelf, Antarctica Jezek, Kenneth C.; Bentley, Charles R.; Clough, John W. Journal of Glaciology, Vol. 24, Issue 90 https://doi.org/10.1017/S0022143000014842	journal	January 1979
Dielectric constants of heterogeneous mixtures Looyenga, H. Physica, Vol. 31, Issue 3 https://doi.org/10.1016/0031-8914(65)90045-5	journal	March 1965
Green icebergs formed by freezing of organic-rich seawater to the base of Antarctic ice shelves Warren, Stephen G.; Roesler, Collin S.; Morgan, Vincent I. Journal of Geophysical Research: Oceans, Vol. 98, Issue C4 https://doi.org/10.1029/92JC02751	journal	April 1993
Seawater softening of suture zones inhibits fracture propagation in Antarctic ice shelves Kulessa, Bernd; Booth, Adam D.; O’Leary, Martin Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-13539-x	journal	December 2019
Marine ice regulates the future stability of a large Antarctic ice shelf Kulessa, Bernd; Jansen, Daniela; Luckman, Adrian J. Nature Communications, Vol. 5, Issue 1 https://doi.org/10.1038/ncomms4707	journal	April 2014
Ice-shelf dynamics near the front of the Filchner—Ronne Ice Shelf, Antarctica, revealed by SAR interferometry Rignot, Eric; MacAyeal, Douglas R. Journal of Glaciology, Vol. 44, Issue 147 https://doi.org/10.1017/S0022143000002732	journal	January 1998
Models proposed to explain the electrical conductivity of mixtures made of conductive and insulating materials Lux, F. Journal of Materials Science, Vol. 28, Issue 2 https://doi.org/10.1007/BF00357799	journal	January 1993
Roles of marine ice, rheology, and fracture in the flow and stability of the Brunt/Stancomb-Wills Ice Shelf Khazendar, A.; Rignot, E.; Larour, E. Journal of Geophysical Research, Vol. 114, Issue F4 https://doi.org/10.1029/2008JF001124	journal	January 2009
Fracture mechanics approach to penetration of surface crevasses on glaciers van der Veen, C. J. Cold Regions Science and Technology, Vol. 27, Issue 1 https://doi.org/10.1016/S0165-232X(97)00022-0	journal	February 1998
A model of marine ice formation within Antarctic ice shelf rifts Khazendar, Ala Journal of Geophysical Research, Vol. 108, Issue C7 https://doi.org/10.1029/2002JC001673	journal	January 2003
Numerical studies of the radiation patterns of resistively loaded dipoles Arcone, Steven A. Journal of Applied Geophysics, Vol. 33, Issue 1-3 https://doi.org/10.1016/0926-9851(95)90028-4	journal	January 1995
Ice Shelves: A Review Thomas, Robert H. Journal of Glaciology, Vol. 24, Issue 90 https://doi.org/10.1017/S0022143000014799	journal	January 1979
Liquid Brine in Ice Shelves Thomas, R. H. Journal of Glaciology, Vol. 14, Issue 70 https://doi.org/10.1017/S0022143000013459	journal	January 1975
Advanced Multifrequency Radar Instrumentation for Polar Research Rodriguez-Morales, Fernando; Byers, Kyle; Crowe, Reid IEEE Transactions on Geoscience and Remote Sensing, Vol. 52, Issue 5 https://doi.org/10.1109/TGRS.2013.2266415	journal	May 2014
Ross Ice Shelf response to climate driven by the tectonic imprint on seafloor bathymetry Tinto, K. J.; Padman, L.; Siddoway, C. S. Nature Geoscience, Vol. 12, Issue 6 https://doi.org/10.1038/s41561-019-0370-2	journal	May 2019
A millennium of variable ice flow recorded by the Ross Ice Shelf, Antarctica Fahnestock, M. A.; Scambos, T. A.; Bindschadler, R. A. Journal of Glaciology, Vol. 46, Issue 155 https://doi.org/10.3189/172756500781832693	journal	January 2000
Ground-penetrating radar profiles of the McMurdo Shear Zone, Antarctica, acquired with an unmanned rover: Interpretation of crevasses, fractures, and folds within firn and marine ice Arcone, Steven A.; Lever, James H.; Ray, Laura E. GEOPHYSICS, Vol. 81, Issue 1 https://doi.org/10.1190/geo2015-0132.1	journal	January 2016
Ice pumps and their rates Lewis, E. L.; Perkin, R. G. Journal of Geophysical Research, Vol. 91, Issue C10 https://doi.org/10.1029/JC091iC10p11756	journal	January 1986
Bed properties of Siple Dome and adjacent ice streams, West Antarctica, inferred from radio-echo sounding measurements Gades, A. M.; Raymond, C. F.; Conway, H. Journal of Glaciology, Vol. 46, Issue 152 https://doi.org/10.3189/172756500781833467	journal	January 2000
The internal structure of the Brunt Ice Shelf from ice-penetrating radar analysis and implications for ice shelf fracture King, Edward C.; De Rydt, Jan; Gudmundsson, G. Hilmar The Cryosphere, Vol. 12, Issue 10 https://doi.org/10.5194/tc-12-3361-2018	journal	January 2018
Antarctic ice rise formation, evolution, and stability Favier, Lionel; Pattyn, Frank Geophysical Research Letters, Vol. 42, Issue 11 https://doi.org/10.1002/2015GL064195	journal	June 2015
Morphology of basal crevasses at the grounding zone of Whillans Ice Stream, West Antarctica Jacobel, Robert W.; Christianson, Knut; Wood, Adam C. Annals of Glaciology, Vol. 55, Issue 67 https://doi.org/10.3189/2014AoG67A004	journal	January 2014
Power loss in dipping internal reflectors, imaged using ice-penetrating radar Holschuh, Nicholas; Christianson, Knut; Anandakrishnan, Sridhar Annals of Glaciology, Vol. 55, Issue 67 https://doi.org/10.3189/2014AoG67A005	journal	January 2014
Processes involved in the propagation of rifts near Hemmen Ice Rise, Ronne Ice Shelf, Antarctica Larour, Eric; Rignot, Eric; Aubry, Denis Journal of Glaciology, Vol. 50, Issue 170 https://doi.org/10.3189/172756504781829837	journal	January 2004
Age of Crary Ice Rise, Antarctica, Determined from Temperature-Depth Profiles Bindschadler, Robert A.; Roberts, Eric P.; Iken, Almut Annals of Glaciology, Vol. 14 https://doi.org/10.1017/S0260305500008168	journal	January 1990
Firn Densification: An Empirical Model Herron, Michael M.; Langway, Chester C. Journal of Glaciology, Vol. 25, Issue 93 https://doi.org/10.1017/S0022143000015239	journal	January 1980

Similar Records

A flow band model of the Ross Ice Shelf, Antarctica: Response to CO sub 2 -induced climatic warming

Conference · Wed Apr 10 00:00:00 EDT 1991 · Journal of Geophysical Research; (United States) · OSTI ID:1774446

Lingle, C S; Brown, T J; Schilling, D H; +2 more

Sedimentary sequences of the Pacific-Indian Ocean sector of the Antarctic continental margin

Conference · Fri Jun 01 00:00:00 EDT 1990 · AAPG Bulletin (American Association of Petroleum Geologists); (USA) · OSTI ID:1774446

Cooper, A; Eittreim, S; Anderson, J; +1 more

The DOE E3SM v1.2 Cryosphere Configuration: Description and Simulated Antarctic Ice‐Shelf Basal Melting

Journal Article · Thu Feb 10 00:00:00 EST 2022 · Journal of Advances in Modeling Earth Systems · OSTI ID:1774446

Comeau, Darin; Asay‐Davis, Xylar S.; Begeman, Carolyn Branecky; +11 more

Related Subjects

54 ENVIRONMENTAL SCIENCES
Antarctic glaciology
crevasses
ice rise
ice shelves
radio-echo sounding

Title: Radio-echo sounding of Crary Ice Rise reveals abundant marine ice in former ice shelf rifts and basal crevasses

Citation Formats

References (58)

Similar Records

Related Subjects