Radar Sounder Data Analysis
Making creative use of radar sounding data to observe the physical processes of glaciers and ice sheets.
Ice penetrating radar sounding is a uniquely powerful geophysical technique for studying the interior of ice sheets, glaciers, and icy planetary bodies. It can provide broad coverage and deep penetration as well as interpretable ice thickness, basal topography, and englacial radio stratigraphy. Despite the long tradition of glaciological interpretation of radar sounding profiles, quantitative analysis of ice penetrating radar data remains relatively rare. However, there is rich, often underexploited, information in radar sounding data. Our work in this area focuses on developing techniques to extract and exploit that information to constrain hard-to-observe geophysical processes. This includes the use of radar echo character, frequency dependence, full wave inversion, target-tuned processing, repeat-pass interferometry, and polarimetry in radar sounding. We are also developing time-series observations of subsurface conditions using stationary ground-based radars, repeat airborne surveys, and digitized archival radar film from the 1970s (www.radarfilm.studio). This combination of a growing body of data and a rapidly-developing literature, makes radar sounding a particularly exciting and rewarding area in which to work.
Publications
Bedmap Data: FAIR Sharing of 60 Years of Ice Bed, Surface and Thickness Data
A.C. Frémand, P. Fretwell, J. Bodart, H.D. Pritchard, A. Aitken, J.L. Bamber, R. Bell, C. Bianchi, R.G. Bingham, D.D. Blakenship, G. Casassa, G. Catania, K. Christianson, H. Conway, H.F.J. Corr, X. Cui, D. Damaske, V. Damn, R. Drews, G. Eagles, O.Eisen, H. Eisermann, F. Ferraccioli, E. Field, R. Forsberg, S. Franke, S. Fujita, Y. Gim, V. Goel, S.P. Gogineni, J. Greenbaum, B. Hills, R.C.A. Hindmarsh, P. Holmlund, N. Holschuh, J.W. Holt, A. Humbert, R.W. Jacobel, D. Jansen, A. Jenkins, W. Jokat, T. Jordan, E. King, J. Kohler, W. Krabill, K.A. Langley, J. Lee, G. Leitchenkov, C. Leuschen, B. Luyendyk, J. MacGregor, E. MacKie, K. Matsuoka, M. Morlinghem, J. Mouginot, F.O. Nitsche, Y. Nogi, O.A. Nost, J. Paden, F. Pattyn, S.V. Popov, M. Riger-Kusk, E. Rignot, D.M. Rippin, A. Rivera, J. Roberts, N. Ross, A. Ruppel, D.M. Schroeder, M.J. Siegert, A.M. Smith, D. Steinhage, M. Studinger, B. Sun, I.Tabacco, K. Tinto, S. Urbini, D. Vaughan, B. C. Welch, D.S. Wilson, D.A. Young, A. Zirizzotti,
Earth System Science Data, 2023
Inferring Ice Fabric from Birefringence Loss in Airborne Radargrams: Application to the Eastern Shear Margin of Thwaites Glacier, West Antarctica
T.J. Young, D.M. Schroeder, T.M. Jordan, P. Christoffersen, S.M. Tulaczyk, R. Culberg, N.L. Bienert
Journal of Geophysical Research: Earth Surface, 2021
Multidecadal Observations of the Antarctic Ice Sheet from Restored Analog Radar Records
D.M. Schroeder, J.A. Dowdeswell, M.J. Siegert, R.G. Bingham, W. Chu, E.J. MacKie, M.R. Siegfried, K.I. Vega, John R. Emmons, K. Winstein,
Proceedings of the National Academy of Sciences, 2019
Layer Optimized SAR Processing and Slope Estimation in Radar Sounder Data
D. Castelletti, D.M. Schroeder, E. Mantelli, A.M. Hilger
Journal of Glaciology, 2019
Geospatial simulations of airborne ice-penetrating radar surveying reveal elevation under-measurement bias for ice sheet bed topography
O. Bartlett, S.J. Palmer, D.M. Schroeder, E.J. MacKie, T.T. Barrows, S.L. Cornford, A.G.C. Graham,
Annals of Glaciology, 2020
Deep Radiostratigraphy of the East Antarctic Plateau: Connecting the Dome C and Vostok Ice Core Sites
M.G.P. Cavitte, D.D. Blankenship, D.A. Young, D.M. Schroeder, F. Parrenin, E. LeMeur, J.A. MacGregor, M.J. Siegert
Journal of Glaciology, 2016
Self-affine subglacial roughness: consequences for radar scattering and basal water discrimination in northern Greenland
T.M. Jordan, M.A. Cooper, D.M. Schroeder, C.N. Williams, J.D. Paden, M.J. Siegert, J.L. Bamber,
The Cryosphere, 2017
Radar Characterization of Ice Crystal Orientation Fabric and Anisotropic Viscosity within an Antarctic Ice Stream
T.M. Jordan, C. Martin, A.M. Brisbourne, D.M. Schroeder, A.M. Smith
Journal of Geophysical Research: Earth Surface, 2022
A Detailed Radiostratigraphic Data Set for the Central East Antarctic Plateau Spanning the Last Half Million Years
M.G.P. Cavitte, D.A. Young, R. Mulvaney, C. Ritz, J.S. Greenbaum, G. Ng, S.D. Kempf, E. Quartini, G.R. Muldoon, J.D. Paden, M. Frezzotti, J.L. Roberts, C.R. Tozer, D.M. Schroeder, and D.D. Blankenship
Earth System Science Data, 2021
Resolving the Internal and Basal Geometry of Ice Masses Using Imaging Phase-Sensitive Radar
T.J. Young, D.M. Schroeder, P. Christoffersen, L. Lok, K.W. Nicholls, P.V. Brennan, S.H. Doyle, B. Hubbard, A. Hubbard,
Journal of Glaciology, 2018
Interpreting Englacial Layer Deformation in the Presence of Complex Ice Flow History with Synthetic Radargrams
C. Ellworth, D.M. Schroeder, M.R. Siegfried
Annals of Glaciology, 2020
Geometric Power Fall-off in Radar Sounding
M.S. Haynes, E. Chapin, D.M. Schroeder,
IEEE Transactions in Geoscience and Remote Sensing, 2018
Reflections On the Anomalous ANITA Events: The Antarctic Subsurface as a Possible Explanation
I.M. Shoemaker, A. Kusenko, P.K. Munneke, A. Romero-Wolf, D.M. Schroeder, M.J. Siegert,
Annals of Glaciology, 2020
Adaptively constraining radar attenuation and temperature across the Thwaites Glacier catchment using bed echoes
D.M. Schroeder, H. Seroussi, W. Chu, D.A. Young
Journal of Glaciology, 2016
A Newly Digitised Ice-penetrating Radar Dataset Acquired over the Greenland Ice Sheet in 1971-1979
N.B. Karlsson, D.M. Schroeder, L. Sandberg Sørensen, W. Chu , J. Dall , N.H. Andersen , R. Dobson , E.J. Mackie, S.J. Köhn , J.E. Steinmetz , A.S. Tarzona , T.O. Teisberg ,N. Skou
Earth System Science Data, 2024
Radiometric Analysis of Digitized Z-Scope Records in Archival Radar Sounding Film
D.M. Schroeder, A. Broome, A. Conger, A. Lynch, E.J. MacKie, A. Tarzona.
Journal of Glaciology, 2022
Automated detection and characterization of Antarctic basal units using radar sounding data: demonstration in Institute Ice Stream, West Antarctica
M. Goldberg, D.M. Schroeder, D. Castelletti, E. Mantelli, N. Ross, M.J. Siegert
Annals of Glaciology, 2020
A Polarimetric Coherence Method to Determine Ice Crystal Orientation Fabric from Radar Sounding: Application to the NEEM Ice Core Region
T.M. Jordan, D.M. Schroeder, D. Castelletti, J. Li, J. Dall,
IEEE Transactions on Geoscience and Remote Sensing, 2019
A comparison of automated approaches to extracting englacial-layer geometry across ice sheets
R. Delf, D.M. Schroeder, A. Curtis, A. Giannopoulos, R.G. Bingham,
Annals of Glaciology, 2020
A Constraint Upon the Basal Water Distribution and Basal Thermal State of the Greenland Ice Sheet from Radar Bed-Echoes
T.M. Jordan, C.N. Williams, D.M. Schroeder, Y.M. Martos, M.A. Cooper, M.J. Siegert, J.D. Paden, P. Huybrechts, J.L. Bamber
The Cryosphere, 2018
Estimating Subglacial Water Geometry using Bed Echo Specularity: Application to Thwaites Glacier, West Antarctica.
D.M. Schroeder, R.K. Raney, D.D. Blankenship
IEEE Geoscience and Remote Sensing Letters, 2015
D.A. Young. Planetary Landing Zone Assessment by Radar Sounder: Demonstration in Antarctica,
C. Grima, D.M. Schroeder, D.D. Blankenship
Planetary and Space Science, 2014