Elmer/Ice News

Intensive workshop on sliding

koli2015Thomas Zwinger and Olivier Gagliardini are currently having an intensive workshop on sliding somewhere in Finland (the exact location is keep secret). One can be sure that great progress regarding sliding in Elmer/Ice will be make by the end of this week.

 

Elmer/Ice at AGU 2014

aguDon't miss the 8 presentations using Elmer/Ice at the next AGU!

C44B-02 First-principles Simulations and the Criticality of Calving Glaciers
Thursday, December 18, 2014, 04:15 PM - 04:30 PM , Moscone West-3007

C44B-03 Melt Undercutting and Calving from Tidewater Glaciers: Observations and Model Results
Thursday, December 18, 2014, 04:30 PM - 04:45 PM , Moscone West-3007

C23C-0416 Interpreting Terminus Fluctuations at Helheim Glacier, Southeast Greenland, through Modeling and Observations
Tuesday, December 16, 2014, 01:40 PM - 06:00 PM , Moscone West-Poster Hall

C23C-0417 Modeling Ocean-Forced Changes in Smith Glacier
Tuesday, December 16, 2014, 01:40 PM - 06:00 PM , Moscone West-Poster Hall

C33A-0351 Retroactions Between Basal Hydrology and Basal Sliding from Numerical Experiments
Wednesday, December 17, 2014, 01:40 PM - 06:00 PM , Moscone West-Poster Hall

C33A-0360 Inferring basal stress under Greenland's big three outlet glaciers
Wednesday, December 17, 2014, 01:40 PM - 06:00 PM , Moscone West-Poster Hall

C33A-0363 Comparison of Full Stokes and Shallow Shelf equations regarding grounding line dynamics on a variety of synthetic geometry representative of Antarctic outlet glaciers.
Wednesday, December 17, 2014, 01:40 PM - 06:00 PM , Moscone West-Poster Hall

C33A-0374 Investigating the Geometry and Conditions for Basal Accretion of Englacial Plumes
Wednesday, December 17, 2014, 01:40 PM - 06:00 PM , Moscone West-Poster Hall

Termini of calving glaciers as self-organized critical systems

Elmer CalvingThis article focuses on the discrete nature of calving and the understanding of the process itself. Based on calving data reaching from small events on glaciers up to the size of ice-shelves, the authors give strong arguments that calving fronts behave as self-organized critical systems that switch from sub-critical stable to super-critical Sfig6c smallcalving modes. The paper also includes a preliminary example on how such a discrete model that was used to underline the argument above could be coupled to Elmer/Ice in order to switch between continuum models in the sub-critical stage to the particle model in the super-critical mode in order to more realistically represent calving compared to continuum models.

 

Åström, J.A., D. Vallot, M. Schäfer, E.Z. Welty, S. O’Neel, T.C. Bartholomaus,Yan Liu, T.I. Riikilä, T. Zwinger, J. Timonen, and J.C. Moore, 2014. Termini of calving glaciers as self-organized critical systems, Nature Geoscience, 7, 874-878, doi:10.1038/ngeo2290 [link to paper]

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