Articles | Volume 10, issue 4
The Cryosphere, 10, 1547–1570, 2016
https://doi.org/10.5194/tc-10-1547-2016
The Cryosphere, 10, 1547–1570, 2016
https://doi.org/10.5194/tc-10-1547-2016

Research article 20 Jul 2016

Research article | 20 Jul 2016

An ice-sheet-wide framework for englacial attenuation from ice-penetrating radar data

T. M. Jordan et al.

Related authors

Subglacial roughness of the Greenland Ice Sheet: relationship with contemporary ice velocity and geology
Michael A. Cooper, Thomas M. Jordan, Dustin M. Schroeder, Martin J. Siegert, Christopher N. Williams, and Jonathan L. Bamber
The Cryosphere, 13, 3093–3115, https://doi.org/10.5194/tc-13-3093-2019,https://doi.org/10.5194/tc-13-3093-2019, 2019
A constraint upon the basal water distribution and thermal state of the Greenland Ice Sheet from radar bed echoes
Thomas M. Jordan, Christopher N. Williams, Dustin M. Schroeder, Yasmina M. Martos, Michael A. Cooper, Martin J. Siegert, John D. Paden, Philippe Huybrechts, and Jonathan L. Bamber
The Cryosphere, 12, 2831–2854, https://doi.org/10.5194/tc-12-2831-2018,https://doi.org/10.5194/tc-12-2831-2018, 2018
Short summary
Self-affine subglacial roughness: consequences for radar scattering and basal water discrimination in northern Greenland
Thomas M. Jordan, Michael A. Cooper, Dustin M. Schroeder, Christopher N. Williams, John D. Paden, Martin J. Siegert, and Jonathan L. Bamber
The Cryosphere, 11, 1247–1264, https://doi.org/10.5194/tc-11-1247-2017,https://doi.org/10.5194/tc-11-1247-2017, 2017
Short summary
Generating synthetic fjord bathymetry for coastal Greenland
Christopher N. Williams, Stephen L. Cornford, Thomas M. Jordan, Julian A. Dowdeswell, Martin J. Siegert, Christopher D. Clark, Darrel A. Swift, Andrew Sole, Ian Fenty, and Jonathan L. Bamber
The Cryosphere, 11, 363–380, https://doi.org/10.5194/tc-11-363-2017,https://doi.org/10.5194/tc-11-363-2017, 2017
Short summary

Related subject area

Ice Sheets
Remapping of Greenland ice sheet surface mass balance anomalies for large ensemble sea-level change projections
Heiko Goelzer, Brice P. Y. Noël, Tamsin L. Edwards, Xavier Fettweis, Jonathan M. Gregory, William H. Lipscomb, Roderik S. W. van de Wal, and Michiel R. van den Broeke
The Cryosphere, 14, 1747–1762, https://doi.org/10.5194/tc-14-1747-2020,https://doi.org/10.5194/tc-14-1747-2020, 2020
Short summary
Brief communication: On calculating the sea-level contribution in marine ice-sheet models
Heiko Goelzer, Violaine Coulon, Frank Pattyn, Bas de Boer, and Roderik van de Wal
The Cryosphere, 14, 833–840, https://doi.org/10.5194/tc-14-833-2020,https://doi.org/10.5194/tc-14-833-2020, 2020
Short summary
A simple stress-based cliff-calving law
Tanja Schlemm and Anders Levermann
The Cryosphere, 13, 2475–2488, https://doi.org/10.5194/tc-13-2475-2019,https://doi.org/10.5194/tc-13-2475-2019, 2019
Short summary
Scaling of instability timescales of Antarctic outlet glaciers based on one-dimensional similitude analysis
Anders Levermann and Johannes Feldmann
The Cryosphere, 13, 1621–1633, https://doi.org/10.5194/tc-13-1621-2019,https://doi.org/10.5194/tc-13-1621-2019, 2019
Short summary
A statistical fracture model for Antarctic ice shelves and glaciers
Veronika Emetc, Paul Tregoning, Mathieu Morlighem, Chris Borstad, and Malcolm Sambridge
The Cryosphere, 12, 3187–3213, https://doi.org/10.5194/tc-12-3187-2018,https://doi.org/10.5194/tc-12-3187-2018, 2018
Short summary

Cited articles

Bailey, J. T., Evans, S., and Robin, G.: Radio echo sounding of polar ice sheets, Nature, 204, 420–421, 1964.
Bamber, J. L., Hardy, R. J., and Joughin, I.: An analysis of balance velocities over the Greenland ice sheet and comparison with synthetic aperture radar interferometry, J. Glaciol., 46, 67–74, https://doi.org/10.3189/172756500781833412, 2000.
Bamber, J. L., Griggs, J. A., Hurkmans, R. T. W. L., Dowdeswell, J. A., Gogineni, S. P., Howat, I., Mouginot, J., Paden, J., Palmer, S., Rignot, E., and Steinhage, D.: A new bed elevation dataset for Greenland, The Cryosphere, 7, 499–510, https://doi.org/10.5194/tc-7-499-2013, 2013.
Bell, R. E., Ferraccioli, F., Creyts, T. T., Braaten, D., Corr, H., Indrani, D., Damaske, D., Frearson, N., Jordan, T., Rose, K., Studinger, M., and Wolovick, M.: Widespread Persistent Thickening of the East Antarctic Ice Sheet by Freezing from the Base, Science, 331, 1592–1595, https://doi.org/10.1126/science.1200109, 2011.
Bentley, C. R., Lord, N., and Liu, C.: Radar reflections reveal a wet bed beneath stagnant Ice Stream C and frozen bed beneath ridge BC, West Antarctica, J. Glaciol., 149–156, https://doi.org/10.1006/jcph.1998.6110, 1998.
Download
Short summary
Ice penetrating radar enables determination of the basal properties of ice sheets. Existing algorithms assume stationarity in the attenuation rate, which is not justifiable at an ice sheet scale. We introduce the first ice-sheet-wide algorithm for radar attenuation that incorporates spatial variability, using the temperature field from a numerical model as an initial guess. The study is a step toward ice-sheet-wide data products for basal properties and evaluation of model temperature fields.