@article{PAR00008306,
  title = {{C}ompetition between grain growth and grain-size reduction in polar ice},
  author = {{R}oessiger, {J}. and {B}ons, {P}.{D}. and {G}riera, {A}. and {J}essell, {M}ark and {E}vans, {L}. and {M}ontagnat, {M}. and {K}ipfstuhl, {S}. and {F}aria, {S}.{H}. and {W}eikusat, {I}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tatic (or 'normal') grain growth, i.e. grain boundary migration driven solely by grain boundary energy, is considered to be an important process in polar ice. {M}any ice-core studies report a continual increase in average grain size with depth in the upper hundreds of metres of ice sheets, while at deeper levels grain size appears to reach a steady state as a consequence of a balance between grain growth and grain-size reduction by dynamic recrystallization. {T}he growth factor k in the normal grain growth law is important for any process where grain growth plays a role, and it is normally assumed to be a temperature-dependent material property. {H}ere we show, using numerical simulations with the program {E}lle, that the factor k also incorporates the effect of the microstructure on grain growth. {F}or example, a change in grain-size distribution from normal to log-normal in a thin section is found to correspond to an increase in k by a factor of 3.5.},
  keywords = {},
  booktitle = {},
  journal = {{J}ournal of {G}laciology},
  volume = {57},
  numero = {205},
  pages = {942--948},
  ISSN = {0022-1430},
  year = {2011},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00008306},
}