SESSION I. Monday 12 September 1977 09.10h-12.40h.

CHAIRMAN: C. W. M. Swithinbank RAPPORTEUR: S. J. Jones

Opening, by the President of the International Glaciological Society, M. de Quervain

INVITED PAPER: E. Whalley: The distortion of a water molecule in ice

D. W. Davidson and J. A. Ripmeester: Clathrate ices–recent results

Hermann Engelhardt and Barclay Kamb: X-ray determination of the structure of ice IV

G. P. Johari: On the heat capacity, entropy, and “glass transition” of vitreous ice

G. P. Johari and E. Whalley: The dipolar correlation factor of ice VI

D. D. Klug and E. Whalley: Origin of the high-frequency translational bands of ice I

P. Faure and A. Chosson: The translational lattice-vibration Raman spectrum of single-crystal ice Ih

SESSION 2. Monday 12 September 1977 14.00h-18.00h.

CHAIRMAN: C. Jaccard RAPPORTEUR: G. Noll

INVITED PAPER: J. F. Nagle: Configurational statistics

O. E. Mogensen and M. Eldrup: Vacancies in pure ice studied by positron annihilation techniques

M. Eldrup, O. E. Mogensen and J. H. Bilgram: Vacancies in HF-doped and in irradiated ice by positron annihilation techniques

J. H. Bilgram and H. Gränicher: Interaction of point defects in ice

G. C. Camplin, J. W. Glen and J. G. Paren: Theoretical models for interpreting the dielectric behaviour of HF-doped ice

RECENT WORK: F. E. Bates, S. M. Jacobs and J. E. Bertie: Infrared spectra of the ices at ≈ 4 K and the interpretation of the v_0D(D₂O) bands of ices II and IX

D. A. Othen, P. G. Wright, F. E. Bates, D. K. Hendricksen, S. M. Jacobs and J. E. Bertie: Infrared spectra of the clathrate hydrates

Arturo Loria, Ezio Mazzega, Umberto del Pennino and Giovanni Andreotti: Measurements of the electrical properties of ice Ih single crystals by admittance and thermally stimulated depolarization techniques

SESSION 3. Tuesday 13 September 1977 09.00h-12.40h.

CHAIRMAN: J. Perez RAPPORTEUR: P. L. M. Plummer

INVITED PAPER: B. Dorner: Inelastic neutron scattering from ice and other proton-containing substances

Gerardo Wolfgang Gross, Iris Cox Hayslip and Roberta N. Hoy: Electrical conductivity and relaxation in ice crystals with known impurity content

M. Hubmann: Effect of pressure on the dielectric properties of ice Ih single crystals doped with NH₃ and HF

J. G. Paren and J. W. Glen: Electrical behaviour of finely divided ice

C. Boned, B. Lagourette and M. Clausse: Dielectric behaviour of dispersions of ice micro-crystals: a study versus temperature

N. Maeno and H. Nishimura: The electrical properties of ice surfaces

K. Itagaki: Dielectric properties of dislocation-free ice

SESSION 4. Tuesday 13 September 1977 14.00h-17.45h.

CHAIRMAN: H. Engelhardt RAPPORTEUR: J. G. Paren

M. Varrot, G. Rochas and J. Klinger: Thermal conductivity of ice in the temperature range 0.5 to 5.0 K

I. Golecki and C. Jaccard: Radiation damage in ice at low temperatures studied by proton channelling

G. P. Johari and S. J. Jones: The orientation polarization in hexagonal ice parallel and perpendicular to the e-axis

G. Noll: The influence of the rate of deformation on the electrical properties of ice mono-crystals

B. Stauffer and W. Berner: CO₂ in natural ice

N. D. Hargreaves: The radio-frequency birefringence of polar ice

Charles R. Bentley: In situ measurements of the activation energy for d.c. conduction in polar ice

Kenneth C. Jezek, John W. Clough, Charles R. Bentley and Sion Shabtaie: Dielectric permittivity of glacier ice measured in situ by radar wide-angle reflection

RECENT WORK: L. T. Traub and P. W. F. Gribbon: The activation energies of temperate snow

R. G. Ross, P. Andersson and G. Bäckström: Effects of H and D order on the thermal conductivity of ice phases

SESSION 5. Wednesday 14 September 1977 09.00h-12.55h.

CHAIRMAN: E. Whalley RAPPORTEUR: M. E. R. Walford

INVITED PAPER: R. W. Whitworth: The core structure and the mobility of dislocations in ice

R. M. J. Cotterill and O. B. Pedersen: The dislocation formation volume in ice

J. Perez, C. Mai* and R. Vassoille: Cooperative movement of H₂O molecules and dynamic behaviours of dislocations in ice Ih

René Vassoille, Christian Mai and Joseph Perez: Inelastic behaviour of ice Ih single crystals in the low-frequency range due to dislocations

N. K. Sinha: Observation of basal dislocations in ice by etching and replicating

C. V. McKnight and J. Hallett: X-ray topographic studies of dislocations in vapor-grown ice crystals

Y. Mizuno: Studies of crystal imperfections in ice with reference to the growth process by the use of X-ray diffraction topography and divergent Laue method

RECENT WORK : D. Joncich, J. Holder and A. V. Granato: Plastic behaviour of predeformed ice crystals

SESSION 6. Thursday 15 September 1977 09.00k-12.55h.

CHAIRMAN: C. R. Bentley RAPPORTEUR: G. P. Johari

H. Shoji and A. Higashi: A deformation mechanism map of ice

D. R. Homer and J. W. Glen: The creep activation energies of ice

S. J. Jones and Jean-Guy Brunet: Deformation of ice single crystals close to the melting point

N. K. Sinha: Short-term rheology of polycrystalline ice

S. J. Jones: Effect of hydrostatic pressure on the creep of ice

R. G. Lile: The effect of anisotropy on the creep of polycrystalline ice

Robert W. Baker: The influence of ice-crystal size on creep

N. W. Riley, G. Noll and J. W. Glen: The creep of NaCl-doped tee monocrystals

RECENT WORK: Z. Watanabe: Breaking strength and creep expansion of deposited snow

SESSION 7. Thursday 13 September 1977 14.00h-18.00h.

CHAIRMAN: A. Higashi RAPPORTEUR: D. J. Goodman

INVITED PAPER: Stuart A. Rice, William G. Madden, Robert McGraw, Mark G. Sceats and Michael S. Bergren: On the relationship between low-density amorphous solid water and ice Ih

J. H. Bilgram and H. Güttinger: Dynamical processes at the ice-water interface during solidification

Othmar Buser and Claude Jaccard: Charge separation by collision of ice particles on metals: electronic surface states

RECENT WORK: Paul R. Camp: Dimensional changes of ice Ih with time

L. Couture: Optical absorption spectra of H₂O ice doped with ytterbium chloride YbCl₃

Patricia L. M. Plummer: Molecular orbital calculations of water-ice surface interactions

B. N. Hale and J. Kieffer: An effective pair-potential study of the interaction of a water monomer with the basal-plane surface of ice Ih

Thomas O’D. Hanley: Frazil nucleation mechanisms

SESSIONS 8. Friday 16 September 1977 09.00h-12.45h.

CHAIRMAN: O. E. Mogensen RAPPORTEUR: W. S. B. Paterson

INVITED PAPER: A. Higashi: Structure and behaviour of grain boundaries in polycrystalline ice

M. Matsuda and G. Wakahama: Crystallographic structure of polycrystalline ice

Paul Duval: Anelastic behaviour of polycrystalline ice

T. Hondoh and A. Higashi: X-ray diffraction topographic observations of the large-angle grain boundary in ice under deformation

S. C. Co’lbeck and N. Parssinen: Regelation and the deformation of wet snow

D. J. Goodman and D. Tabor: Fracture toughness of ice: a preliminary account of some new experiments

Katutosi Tusima: Anisotropy of the kinetic friction on a single crystal of ice

RECENT WORK : L. Levi: Application of nucleation theory to the process of droplet freezing on an ice substrate

SESSION-9. Friday 16 September 1977 14.00h-16.00h.

CHAIRMAN: J. W. Glen RAPPORTEURS: J. G. Paren D. R. Homer

GENERAL DISCUSSION

Closing remarks by J. W. Glen

Closing of the Symposium by the President of the Society