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Annals of Glaciology
Volume 37

Papers from the
International Symposium on Physical and Mechanical Processes in Ice in relation to Glacier and Ice-sheet Modelling

held at Chamonix Mont-Blanc, France
26-30 August 2002
Cover Annals Vol 37

Editor: P. Duval

Contents Page

1-6
Spatial variability in the water content and rheology of temperate glaciers: Glacier de Tsanfleuron, Switzerland
Bryn P. Hubbard, Alun Hubbard, Heidy M. Mader, Jean-Louis Tison, Karin Grust and Peter W. Nienow

7-17
The application of an automated fabric analyzer system to the textural evolution of folded ice layers in shear zones
Christopher J.L. Wilson, David S. Russell-Head and Hadi M. Sim

18-22
A dislocation-based analysis of the creep of granular ice: preliminary experiments and modeling
David M. Cole

23-28
A mesoscopic approach for modelling texture evolution of polar ice including recrystallization phenomena
Günter Gödert

29-34
On the inclusion of recrystallization processes in the modeling of induced anisotropy in ice sheets: a thermodynamicist's point of view
Sérgio H. Faria, Gilberto M. Kremer and Kolumban Hutter

35-39
Strain-rate formulation of ice fabric evolution
Leslie W. Morland and Ryszard Staroszczyk

40-48
Spatial and temporal scales of anisotropic effects in ice-sheet flow
Throstur Thorsteinsson, Edwin D. Waddington and Raymond C. Fletcher

49-54
Numerical investigation of the effects of temporal variations in basal lubrication on englacial strain-rate distribution
Shin Sugiyama, G. Hilmar Gudmundsson and Jakob Helbing

55-59
On the rheology of till
Andrew C. Fowler

60-68
Ice-flow measurements and deformation at marginal shear zones on Sørsdal Glacier, Ingrid Christensen Coast, East Antarctica
Benjamin A. Patrick, Adrian F. Corvino and Christopher J.L. Wilson

69-76
Observation of recent surges of Vatnajökull, Iceland, by means of ERS SAR interferometry
Andrea Fischer, Helmut Rott and Helgi Björnsson

77-82
A description of crevasse formation using continuum damage mechanics
Antoine Pralong, Martin Funk and Martin P. Lüthi

83-89
Tidal bending of glaciers: a linear viscoelastic approach
Niels Reeh, Erik Lintz Christensen, Christoph Mayer and Ole B. Olesen

90-96
The influence of temperature on the small-strain viscous deformation mechanics of snow: a comparison with polycrystalline ice
Carlo Scapozza and Perry A. Bartelt

97-104
Ice-fabrics study in the upper 1500 m of the Dome C (East Antarctica) deep ice core
Yun Wang, Sepp Kipfstuhl, Nobuhiko Azuma, Thorsteinn Thorsteinsson and Heinz Miller

105-107
Experimental study on the micro-fabric of frozen sediment using triaxial deformation and computerized tomography
Qi Jilin, Lai Yuanming and Pu Yibing

108-112
Laboratory studies of the flow rates of debris-laden ice
Tim H. Jacka, Shavawn Donoghue, Jun Li, William F. Budd and Ross M. Anderson

113-118
Properties of ice crystals in NorthGRIP late- to middle-Holocene ice
Anders Svensson, Karen G. Schmidt, Dorthe Dahl-Jensen, Sigfús J. Johnsen, Yun Wang, Sepp Kipfstuhl and Thorsteinn Thorsteinsson

119-122
Seasonal variability in ice crystal properties at NorthGRIP: a case study around 301m depth
Anders Svensson, Pauli Baadsager, Asbjørn Persson, Christine Schøtt Hvidberg and Marie-Louise Siggard-Andersen

123-128
Ice-core insights into the flow and shut-down of Ice Stream C, West Antarctica
Donald E. Voigt, Richard B. Alley, Sridhar Anandakrishnan and Matthew K. Spencer

129-133
An ice crystal model for Jupiter's moon Europa
Karen Guldbæk Schmidt and Dorthe Dahl-Jensen

134-142
Studying the effects of strain heating on glacial flow within outlet glaciers from the Heimefrontfjella Range, Dronning Maud Land, Antarctica
Veijo A. Pohjola and Jim Hedfors

143-149
Numerical modelling of historical front variations and dynamic response of Sofiyskiy glacier, Altai mountains, Russia
Bert De Smedt and Frank Pattyn

150-158
A comparison of Eulerian and Lagrangian methods for dating in numerical ice-sheet models
Oleg Rybak and Philippe Huybrechts

159-165
Dynamics and mass balance of the ice-sheet/ice-shelf regime at Nivlisen, Antarctica, as derived from a coupled three-dimensional numerical flow model
Birgit Paschke and Manfred A. Lange

166-172
Effects of first-order stress gradients in an ice sheet evaluated by a three-dimensional thermomechanical coupled model
Fuyuki Saito, Ayako Abe-Ouchi and Heinz Blatter

173-180
Modeling the marine extent of Northern Hemisphere ice sheets during the last glacial cycle
Chris Zweck and Philippe Huybrechts

181-188
Intra-annual and intra-seasonal flow dynamics of a High Arctic polythermal valley glacier
Robert G. Bingham, Peter W. Nienow and Martin J. Sharp

189-193
A regression model for the mass-balance distribution of the Vatnajökull ice cap, Iceland
Guðfinna Aðalgeirsdóttir, G. Hilmar Gudmundsson and Helgi Björnsson

194-198
Snow-accumulation studies in Antarctica with ground-penetrating radar using 50, 100 and 800 MHz antenna frequencies
Anna Sinisalo, Aslak Grinsted, John C. Moore, Eija Kärkäs and Rickard Pettersson

199-206
Seasonal comparison of ice-surface structures in the ablation area of Jakobshavn Isbræ drainage system, West Greenland
Ute Christina Herzfeld and Helmut Mayer

207-212
Basal melt at NorthGRIP modeled from borehole, ice-core and radio-echo sounder observations
Dorthe Dahl-Jensen, Niels Gundestrup, S. Prasad Gogineni and Heinz Miller

213-218
A 14 year mass-balance record of a blue-ice area in Antarctica
Anna Sinisalo, John C. Moore, Roderik S.W. van de Wal, Richard Bintanja and Stig Jonsson

219-225
Glacier changes in southern Spitsbergen, Svalbard, 1901-2000
Anja Pälli, John C. Moore, Jacek Jania and Piotr Glowacki

226-232
Radio-frequency attenuation beneath Siple Dome, West Antarctica, from wide-angle and profiling radar observations
Dale P. Winebrenner, Benjamin E. Smith, Ginny A. Catania, Howard B. Conway and Charles F. Raymond

233-238
Seasonal variation of snow-surface elevation in North Greenland as modeled and detected by satellite radar altimetry
Jun Li, Jay Zwally, Helen Cornejo and Donghui Yi

239-246
Numerical investigations of the slow-down of Whillans Ice Stream, West Antarctica: is it shutting down like Ice Stream C?
Marion Bougamont, Slawek Tulaczyk and Ian Joughin

247-251
Plane ice-sheet flow with evolving and recrystallizing fabric
Ryszard Staroszczyk

252-256
Lakes and subglacial hydrological networks around Dome C, East Antartica
Frédérique Rémy, Laurent Testut, Benoît Legrésy, Alessandro Forieri, Cesido Bianchi and Ignazio E. Tabacco

257-262
Equifinality of basal ice facies from an Antarctic cold-based glacier
Suzanne Sleewaegen, Denis Samyn, Sean J. Fitzsimons and Reginald D. Lorrain

263-268
Investigating the ratio of basal drag and driving stress in relation to bedrock topography during a melt season on Storglaciären, Sweden, using force-budget analysis
Jim Hedfors, Vincent Peyaud, Veijo A. Pohjola, Peter Jansson and Rickard Pettersson

269-274
Ground-water intrusions in a mine beneath Høganesbreen, Svalbard: assessing the possibility of evacuating water subglacially
Kjetil Melvold, Thomas Schuler and Gaute Lappegard

275-280
Elucidating changes in the degree of tracer dispersion in a subglacial channel
Thomas Schuler and Urs H. Fischer

281-285
Numerical simulation of three-dimensional velocity fields in pressurized and non-pressurized Nye channels
Paul D. Bates, Martin J. Siegert, Victoria Lee, Bryn P. Hubbard and Peter W. Nienow

286-292
Ice dynamics and basal properties of Sofiyskiy glacier, Altai mountains, Russia, based on DGPS and radio-echo sounding surveys
Frank Pattyn, Bert de Smedt, Sang de Brabander, Wim van Huele, Anna Agatova, Anatoliy Mistrukov and Hugo Decleir

293-297
Comparison of modelled and observed responses of a glacier snowpack to ground-penetrating radar
Jack Kohler, John C. Moore and Elisabeth Isaksson

298-304
Firn-ice transition-zone features of four polythermal glaciers in Svalbard seen by ground-penetrating radar
Anja Pälli, John C. Moore and Cecilie Rolstad

305-316
Scattering of VHF radio waves from within an ice sheet containing the vertical-girdle-type ice fabric and anisotropic reflection boundaries
Shuji Fujita, Kenichi Matsuoka, Hideo Maeno and Teruo Furukawa

317-324
Estimation of water content in a temperate glacier from radar and seismic sounding data
Beatriz Benjumea, Yury Ya. Macheret, Francisco J. Navarro and Teresa Teixidó

325-330
Using internal layers from the Greenland ice sheet, identified from radio-echo sounding data, with numerical models
Duncan J. Baldwin, Jonathan L. Bamber, Antony J. Payne and Russel L. Layberry

331-336
The ice-thickness distribution of Unteraargletscher, Switzerland
Andreas Bauder, Martin Funk and G. Hilmar Gudmundsson

337-343
Comparison between computed balance velocities and GPS measurements in the Lambert Glacier basin, East Antarctica
Laurent Testut, Rachael Hurd, Richard Coleman, Frédérique Rémy and Benoît Legrésy

344-350
Identifying isochrones in GPR profiles from DEP-based forward modeling
Olaf Eisen, Frank Wilhelms, Uwe Nixdorf and Heinrich Miller

351-356
A new bedrock and surface elevation dataset for modelling the Greenland ice sheet
Jonathan L. Bamber, Duncan J. Baldwin and S. Prasad Gogineni

357-362
Science goals for a Mars polar-cap subsurface mission: optical approaches for investigations of inclusions in ice
Frank Carsey, Claus T. Mogensen, Alberto Behar, Hermann Engelhardt and Arthur L. Lane

363-369
Relationship between topography and flow in the north polar cap on Mars
Christine Schøtt Hvidberg

370-376
Effects of basal sliding on isochrones and flow near an ice divide
Erin C. Pettit, H. Paul Jacobson and Edwin D. Waddington

377-382
Spatial stability of Ice Stream D and its tributaries, West Antarctica, revealed by radio-echo sounding and interferometry
Martin J. Siegert, Antony J. Payne and Ian Joughin

383-389
Simulation of fast-flow features of the Fennoscandian ice sheet during the Last Glacial Maximum
Pirjo-Leena Forsström, Olli Sallasmaa, Ralf Greve and Thomas Zwinger

390-396
Thermomechanical coupling of ice flow with the bedrock
Richard C.A. Hindmarsh

397-404
Anisotropic ice flow leading to the onset of Ice Stream D, West Antarctica: numerical modelling based on the observations from Byrd Station borehole
Weili Wang, H. Jay Zwally, Christina L. Hulbe, Martin J. Siegert and Ian Joughin