The Cryosphere
The Cryosphere
TC
Articles | Volume 14, issue 7
Articles | Volume 14, issue 7
https://doi.org/10.5194/tc-14-2449-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-2449-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 7
Research article
 | 
27 Jul 2020
Research article |  | 27 Jul 2020

Using a composite flow law to model deformation in the NEEM deep ice core, Greenland – Part 2: The role of grain size and premelting on ice deformation at high homologous temperature

Ernst-Jan N. Kuiper, Johannes H. P. de Bresser, Martyn R. Drury, Jan Eichler, Gill M. Pennock, and Ilka Weikusat

Viewed

Total article views: 3,283 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
2,211 922 150 3,283 148 213
  • HTML: 2,211
  • PDF: 922
  • XML: 150
  • Total: 3,283
  • BibTeX: 148
  • EndNote: 213
Views and downloads (calculated since 20 Feb 2019)
Cumulative views and downloads (calculated since 20 Feb 2019)

Viewed (geographical distribution)

Total article views: 3,283 (including HTML, PDF, and XML) Thereof 3,031 with geography defined and 252 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 05 Dec 2025
Download
Short summary
Fast ice flow occurs in deeper parts of polar ice sheets, driven by high stress and high temperatures. Above 262 K ice flow is further enhanced, probably by the formation of thin melt layers between ice crystals. A model applying an experimentally derived composite flow law, using temperature and grain size values from the deepest 540 m of the NEEM ice core, predicts that flow in fine-grained layers is enhanced by a factor of 10 compared to coarse-grained layers in the Greenland ice sheet.
Read more
Share