Articles | Volume 15, issue 8
https://doi.org/10.5194/tc-15-4117-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-4117-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Aug 2021
Research article |
| 27 Aug 2021
| 27 Aug 2021
Rapid and accurate polarimetric radar measurements of ice crystal fabric orientation at the Western Antarctic Ice Sheet (WAIS) Divide ice core site
Scott Polar Research Institute, University of Cambridge, Cambridge CB2 1ER, UK
Carlos Martín
British Antarctic Survey, Natural Environment Research Council, Cambridge CB3 0ET, UK
Poul Christoffersen
Scott Polar Research Institute, University of Cambridge, Cambridge CB2 1ER, UK
Dustin M. Schroeder
Department of Geophysics, Stanford University, Stanford, CA 94305, USA
Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
Slawek M. Tulaczyk
Department of Earth and Planetary Sciences, University of California, Santa Cruz, CA 95064, USA
Eliza J. Dawson
Department of Geophysics, Stanford University, Stanford, CA 94305, USA
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Cited
12 citations as recorded by crossref.
- Radar Characterization of Ice Crystal Orientation Fabric and Anisotropic Viscosity Within an Antarctic Ice Stream T. Jordan et al. 10.1029/2022JF006673
- Post-Processing Synchronized Bistatic Radar for Long Offset Glacier Sounding N. Bienert et al. 10.1109/TGRS.2022.3147172
- In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory R. Abbasi et al. 10.5194/tc-18-75-2024
- On the Limitations of Using Polarimetric Radar Sounding to Infer the Crystal Orientation Fabric of Ice Masses N. Rathmann et al. 10.1029/2021GL096244
- Impact of biaxial birefringence in polar ice at radio frequencies on signal polarizations in ultrahigh energy neutrino detection A. Connolly 10.1103/PhysRevD.105.123012
- Shallow Ice‐Sheet Composite Structure Revealed by Seismic Imaging Near the West Antarctic Ice Sheet (WAIS) Divide Camp Z. Zhang et al. 10.1029/2022JF006777
- Improved estimation of the bulk ice crystal fabric asymmetry from polarimetric phase co-registration O. Zeising et al. 10.5194/tc-17-1097-2023
- Near-surface seismic anisotropy in Antarctic glacial snow and ice revealed by high-frequency ambient noise J. Chaput et al. 10.1017/jog.2022.98
- Seismic full-wavefield imaging of the West Antarctic Ice Sheet interior near the ice flow divide Z. Zhang et al. 10.1016/j.epsl.2024.118701
- Polarimetric radar reveals the spatial distribution of ice fabric at domes and divides in East Antarctica M. Ershadi et al. 10.5194/tc-16-1719-2022
- Multimaxima crystallographic fabrics (CPO) in warm, coarse-grained ice: New insights M. Disbrow-Monz et al. 10.1016/j.jsg.2024.105107
- Inferring Ice Fabric From Birefringence Loss in Airborne Radargrams: Application to the Eastern Shear Margin of Thwaites Glacier, West Antarctica T. Young et al. 10.1029/2020JF006023
11 citations as recorded by crossref.
- Radar Characterization of Ice Crystal Orientation Fabric and Anisotropic Viscosity Within an Antarctic Ice Stream T. Jordan et al. 10.1029/2022JF006673
- Post-Processing Synchronized Bistatic Radar for Long Offset Glacier Sounding N. Bienert et al. 10.1109/TGRS.2022.3147172
- In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory R. Abbasi et al. 10.5194/tc-18-75-2024
- On the Limitations of Using Polarimetric Radar Sounding to Infer the Crystal Orientation Fabric of Ice Masses N. Rathmann et al. 10.1029/2021GL096244
- Impact of biaxial birefringence in polar ice at radio frequencies on signal polarizations in ultrahigh energy neutrino detection A. Connolly 10.1103/PhysRevD.105.123012
- Shallow Ice‐Sheet Composite Structure Revealed by Seismic Imaging Near the West Antarctic Ice Sheet (WAIS) Divide Camp Z. Zhang et al. 10.1029/2022JF006777
- Improved estimation of the bulk ice crystal fabric asymmetry from polarimetric phase co-registration O. Zeising et al. 10.5194/tc-17-1097-2023
- Near-surface seismic anisotropy in Antarctic glacial snow and ice revealed by high-frequency ambient noise J. Chaput et al. 10.1017/jog.2022.98
- Seismic full-wavefield imaging of the West Antarctic Ice Sheet interior near the ice flow divide Z. Zhang et al. 10.1016/j.epsl.2024.118701
- Polarimetric radar reveals the spatial distribution of ice fabric at domes and divides in East Antarctica M. Ershadi et al. 10.5194/tc-16-1719-2022
- Multimaxima crystallographic fabrics (CPO) in warm, coarse-grained ice: New insights M. Disbrow-Monz et al. 10.1016/j.jsg.2024.105107
Latest update: 23 Apr 2024
Short summary
If the molecules that make up ice are oriented in specific ways, the ice becomes softer and enhances flow. We use radar to measure the orientation of ice molecules in the top 1400 m of the Western Antarctic Ice Sheet Divide. Our results match those from an ice core extracted 10 years ago and conclude that the ice flow has not changed direction for the last 6700 years. Our methods are straightforward and accurate and can be applied in places across ice sheets unsuitable for ice coring.
If the molecules that make up ice are oriented in specific ways, the ice becomes softer and...
