Quantifying subglacial bed roughness in Antarctica: implications for ice-sheet dynamics and history

[1]  J. Mienert,et al.  Timing and significance of glacially influenced mass-wasting in the submarine channels of the Greenland Basin , 2004 .

[2]  S. Tulaczyk,et al.  Positive Mass Balance of the Ross Ice Streams, West Antarctica , 2002, Science.

[3]  David G. Vaughan,et al.  BEDMAP: a new ice thickness and subglacial topographic model of Antarctica , 2001 .

[4]  J. Dowdeswell,et al.  Radio Echo-Sounding of Spitsbergen Glaciers: Problems in the Interpretation of Layer and Bottom Returns , 1984, Journal of Glaciology.

[5]  Justin Taylor,et al.  Regional-scale bed roughness beneath ice masses: measurement and analysis , 2004, Comput. Geosci..

[6]  T. Scambos,et al.  Changes in the configuration of ice stream flow from the West Antarctic Ice Sheet , 1996 .

[7]  G. Catania,et al.  Bed radar reflectivity across the north margin of Whillans Ice Stream, West Antarctica, and implications for margin processes , 2006, Journal of Glaciology.

[8]  Peter D. Welch,et al.  The Fast Fourier Transform and Its Applications , 1969 .

[9]  R. Bindschadler.  Antarctic Ice Sheet: Setting the Stage the Environment and Evolution of the West References Rapid Response Email Alerting Service the Environment and Evolution of the West Antarctic Ice Sheet: Setting the Stage , 2022 .

[10]  John W. Holt,et al.  New boundary conditions for the West Antarctic ice sheet: Subglacial topography beneath Pine Island Glacier , 2006 .

[11]  T. Murray,et al.  Rapid erosion, drumlin formation, and changing hydrology beneath an Antarctic ice stream , 2007 .

[12]  Mark Fahnestock,et al.  Tectonically controlled subglacial lakes on the flanks of the Gamburtsev Subglacial Mountains, East Antarctica , 2006 .

[13]  T. Scambos,et al.  Surface morphology and internal layer stratigraphy in the downstream end of Kamb Ice Stream, West Antarctica , 2005, Journal of Glaciology.

[14]  Stephen F. Price,et al.  Changes in west Antarctic ice stream velocities: Observation and analysis , 2002 .

[15]  Julian A. Dowdeswell,et al.  Form and flow of the Devon Island Ice Cap, Canadian Arctic , 2004 .

[16]  D. Vaughan,et al.  Flow-switching and water piracy between Rutford Ice Stream and Carlson Inlet, West Antarctica , 2008, Journal of Glaciology.

[17]  M. E. Peters,et al.  Analysis techniques for coherent airborne radar sounding: Application to West Antarctic ice streams , 2005 .

[18]  Frédérique Rémy,et al.  Bedrock features and ice flow near the EPICA Ice Core Site (Dome C, Antarctica) , 2000 .

[19]  John B. Anderson,et al.  Extent and dynamics of the West Antarctic Ice Sheet on the outer continental shelf of Pine Island Bay during the last glaciation , 2006 .

[20]  S. Peckham,et al.  The physical basis of glacier volume-area scaling , 1997 .

[21]  Ice Divides and Drainage Basins on the Ice Caps of Franz Josef Land, Russian High Arctic, Defined from Landsat, KFA-1000, and ERS-1 SAR Satellite Imagery , 1995 .

[22]  R. Arko,et al.  Subglacial sediments: A regional geological template for ice flow in West Antarctica , 2001 .

[23]  Bruce H. Raup,et al.  Glaciological characteristics of Institute Ice Stream using remote sensing , 2004, Antarctic Science.

[24]  A. Vieli,et al.  Ice Flow Direction Change in Interior West Antarctica , 2004, Science.

[25]  J. Legarsky,et al.  Coherent radar ice thickness measurements over the Greenland ice sheet , 2001 .

[26]  J. Dowdeswell,et al.  Identification and preservation of landforms diagnostic of past ice-sheet activity on continental shelves from three-dimensional seismic evidence , 2007 .

[27]  W. Robert,et al.  Interpretation of radar-detected internal layer folding in West Antarctic ice streams , 1993, Journal of Glaciology.

[28]  M. E. Peters,et al.  New boundary conditions for the West Antarctic Ice Sheet: Subglacial topography of the Thwaites and Smith glacier catchments , 2006 .

[29]  D. Sugden.  Glacial Erosion by the Laurentide Ice Sheet , 1978, Journal of Glaciology.

[30]  D. Blankenship,et al.  Organized flow from the South Pole to the Filchner‐Ronne ice shelf: An assessment of balance velocities in interior East Antarctica using radio echo sounding data , 2007 .

[31]  S. Tulaczyk,et al.  Integrating satellite observations with modelling: basal shear stress of the Filcher-Ronne ice streams, Antarctica , 2006, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[32]  F. Ng,et al.  Fast-flow signature in the stagnated Kamb Ice Stream, West Antarctica , 2004 .

[33]  R. Alley,et al.  Subglacial sediments as a control on the onset and location of two Siple Coast ice streams, West Antarctica , 2006 .

[34]  S. Tulaczyk,et al.  Sedimentary processes at the base of a West Antarctic ice stream: Constraints from textural and comp , 1998 .

[35]  M. Siegert.  On the origin, nature and uses of Antarctic ice-sheet radio-echo layering , 1999 .

[36]  R. Alley,et al.  Seismic measurements reveal a saturated porous layer beneath an active Antarctic ice stream , 1986, Nature.

[37]  R. Alley,et al.  Influence of subglacial geology on the position of a West Antarctic ice stream from seismic observations , 1998, Nature.

[38]  Anne M. Le Brocq,et al.  West Antarctic balance calculations: Impact of flux-routing algorithm, smoothing algorithm and topography , 2006, Comput. Geosci..

[39]  Francesco Salvini,et al.  Physiography and tectonic setting of the subglacial lake district between Vostok and Belgica subglacial highlands (Antarctica) , 2006 .

[40]  M. Fahnestock,et al.  Century-scale discharge stagnation and reactivation of the Ross ice streams, West Antarctica , 2007 .

[41]  Bryn Hubbard,et al.  Macro‐scale bed roughness of the siple coast ice streams in West Antarctica , 2004 .

[42]  Philippe Huybrechts,et al.  Sea-level changes at the LGM from ice-dynamic reconstructions of the Greenland and Antarctic ice sheets during the glacial cycles , 2002 .

[43]  E. King,et al.  Seismic and radar observations of subglacial bed forms beneath the onset zone of Rutford Ice Stream, Antarctica , 2007, Journal of Glaciology.

[44]  J. Dowdeswell,et al.  Numerical reconstructions of the Eurasian Ice Sheet and climate during the Late Weichselian , 2004 .

[45]  Andrew Shepherd,et al.  Recent Sea-Level Contributions of the Antarctic and Greenland Ice Sheets , 2007, Science.

[46]  D. McCarroll,et al.  Spectral roughness of glaciated bedrock geomorphic surfaces: Implications for glacier sliding , 2000 .

[47]  Bamber,et al.  Widespread complex flow in the interior of the antarctic ice sheet , 2000, Science.

[48]  A. Smith.  Basal conditions on Rutford Ice Stream, West Antarctica, from seismic observations , 1997 .

[49]  Eric Rignot,et al.  Recent Antarctic ice mass loss from radar interferometry and regional climate modelling , 2008 .

[50]  S. Carter,et al.  A revised inventory of Antarctic subglacial lakes , 2004, Antarctic Science.

[51]  W. Peltier,et al.  A calibrated deglacial drainage chronology for the North American continent: evidence of an Arctic trigger for the Younger Dryas , 2006 .

[52]  C. Bentley,et al.  Evidence for a recently abandoned shear margin adjacent to ice stream B2, Antarctica, from ice‐penetrating radar measurements , 2000 .

[53]  Alun Hubbard,et al.  Towards a GIS assessment of numerical ice-sheet model performance using geomorphological data , 2007, Journal of Glaciology.

[54]  J. Harbor,et al.  A relict landscape in the centre of Fennoscandian glaciation: cosmogenic radionuclide evidence of tors preserved through multiple glacial cycles , 2002 .

[55]  A. Payne,et al.  Spectral roughness of subglacial topography and implications for former ice-sheet dynamics in East Antarctica , 2005 .

[56]  J. Bamber,et al.  The englacial stratigraphy of Wilkes Land, East Antarctica, as revealed by internal radio-echo sounding layering, and its relationship with balance velocities , 2003, Annals of Glaciology.

[57]  Ian Joughin,et al.  Basal shear stress of the Ross ice streams from control method inversions , 2004 .

[58]  K. E. Rose,et al.  Characteristics of Ice Flow in Marie Byrd Land, Antarctica , 1979, Journal of Glaciology.

[59]  H. Corr,et al.  Airborne radio-echo sounding of the Wilkes Subglacial Basin, the Transantarctic Mountains and the Dome C region , 2007 .

[60]  Martin J. Siegert,et al.  Ice Sheets and Late Quaternary Environmental Change , 2001 .

[61]  A. Shepherd,et al.  Form and flow of the Academy of Sciences Ice Cap, Severnaya Zemlya, Russian High Arctic , 2002 .

[62]  Bedrock surface roughness and the distribution of subglacially precipitated carbonate deposits : Implications for formation at Glacier de Tsanfleuron, Switzerland , 1998 .

[63]  Charles R. Bentley,et al.  Timing of stagnation of Ice Stream C, West Antarctica, from short-pulse radar studies of buried surface crevasses , 1993, Journal of Glaciology.

[64]  D. J. Drewry,et al.  Antarctica : glaciological and geophysical folio , 1984 .

[65]  C. Bentley,et al.  Laterally varying basal conditions beneath ice Streams B and C, West Antarctica , 1993, Journal of Glaciology.

[66]  Ongoing margin migration of Ice Stream B, Antarctica , 1999 .

[67]  John B. Anderson,et al.  Evidence for abundant subglacial meltwater beneath the paleo-ice sheet in Pine Island Bay, Antarctica , 2003, Journal of Glaciology.

[68]  J. Weertman.  On the Sliding of Glaciers , 1957, Journal of Glaciology.

[69]  C. Clark,et al.  Palaeo-ice streams , 2001 .

[70]  J. Kleman.  The Palimpsest Glacial Landscape in Northwestern Sweden: Late Weichselian deglaciation landforms and traces of older west-centered ice sheets , 1992 .

[71]  S. Tulaczyk,et al.  Pleistocene collapse of the west antarctic ice sheet , 1998, Science.

[72]  I. Joughin,et al.  Spatial stability of Ice Stream D and its tributaries, West Antarctica, revealed by radio-echo sounding and interferometry , 2003, Annals of Glaciology.

[73]  T. Scambos,et al.  Sequential stagnation of Kamb Ice Stream, West Antarctica , 2006 .

[74]  R. Alley,et al.  The West Antarctic ice sheet : behavior and environment , 2001 .

[75]  Stuart Marsh,et al.  Map and GIS database of glacial landforms and features related to the last British Ice Sheet , 2004 .

[76]  Jeff Evans,et al.  Flow dynamics and till genesis associated with a marine-based Antarctic palaeo-ice stream. , 2005 .

[77]  Robert Bingham,et al.  Radio-Echo Sounding Over Polar Ice Masses , 2007 .