The Cryosphere
The Cryosphere
TC
Articles | Volume 17, issue 11
Articles | Volume 17, issue 11
https://doi.org/10.5194/tc-17-4705-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-4705-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 11
Research article
 | 
09 Nov 2023
Research article |  | 09 Nov 2023

Basal conditions of Denman Glacier from glacier hydrology and ice dynamics modeling

Koi McArthur, Felicity S. McCormack, and Christine F. Dow

Data sets

MEaSUREs BedMachine Antarctica, Version 2 M. Morlighem https://doi.org/10.5067/E1QL9HFQ7A8M

"Basal conditions of Denman Glacier from glacier hydrology and ice dynamics modeling" datasets K. McArthur, C. Dow, and F. McCormack https://doi.org/10.5281/zenodo.7709384

MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2 E. Rignot, J. Mouginot, and B. Scheuchl https://doi.org/10.5067/D7GK8F5J8M8R

Ice and Climate: Polar climate modelling Utrecht University https://www.projects.science.uu.nl/iceclimate/models/racmo-data.php#totop

Results of the initMIP-Antarctica experiments: an ice sheet initialization intercomparison of ISMIP6 H. Seroussi https://doi.org/10.5281/zenodo.2651652

Model code and software

Ice-Sheet and Sea-Level System Model (ISSM) code Mathieu Morlighem, Hélène Seroussi, Éric Larour, Nicole Schlegel, Chris Borstad, Basile de Fleurian, Surendra Adhikari, Johannes Bondzio, Aleah Sommers, Felicity McCormack, and Thiago Dias dos Santos https://issm.jpl.nasa.gov/download/

Download
Short summary
Using subglacial hydrology model outputs for Denman Glacier, East Antarctica, we investigated the effects of various friction laws and effective pressure inputs on ice dynamics modeling over the same glacier. The Schoof friction law outperformed the Budd friction law, and effective pressure outputs from the hydrology model outperformed a typically prescribed effective pressure. We propose an empirical prescription of effective pressure to be used in the absence of hydrology model outputs.
Read more