Elmer/Ice News

Print

Elmer/Ice @ AGU2015

Written by Olivier Gagliardini on .

aguDon't miss the 9 presentations using Elmer/Ice at the next AGU!

Monday, 14 December 2015 - Moscone South - Poster Hall - 08:00 - 12:20
- C11B-0761: Triggers for the Collapse of Ice Shelves in Antarctica: Investigating Compressive Arch Failure with Numerical Models, Alex Huth and Benjamin Smith

Thursday, 17 December 2015 - Moscone West - 3007
- 10:50 - 11:05: C42A-03: Influence of an Increasing Surface Melt Over Decadal Timescales on Land Terminating Outlet Glaciers, Olivier Gagliardini, Mauro Werder and Gaël Durand

Friday, 18 December 2015 - Moscone South - Poster Hall - 08:00 - 12:20
- C51C-0736: Simulating Ice-Flow and Calving on Store Glacier, West Greenland, with a 3D Full Stokes Model, Joe Todd, Poul Christoffersen, Thomas Zwinger, Adrian Luckman and Doug Benn
- C51C-0730: Quantifying Uncertainty in Inferred Viscosity and Basal Shear Stress Over Ice Streams, David Lilien, Ian Joughin and Benjamin Smith

Friday, 18 December 2015 - Moscone West - 3005
- 13:55 - 14:10: C53E-02: Improvement of Basal Conditions in Wilkes Land, East Antarctica, Using Data Assimilation, Cyrille Mosbeux, Fabien Gillet-chaulet and Olivier Gagliardini
- 14:25 - 14:40: C53E-04: The Friction Law Stress Exponent under Pine Island Glacier from 15 Years of Surface Elevation and Velocity Measurements (Invited), Fabien Gillet-chaulet, Gaël Durand, Olivier Gagliardini, Cyrille Mosbeux, Jeremie Mouginot, Frederique Remy and Catherine Ritz
- 14:55 - 15:10: C53E-06: Stability of Barnes Ice Cap, Baffin Island, Canada, Adrien Gilbert and others.
- 16:15 - 16:30: C54B-02: The influence of subtemperate sliding on the formation of temperate ice in ice stream margins, Marianne Haseloff, Christian Schoof and Olivier Gagliardini
- 17:00 - 17:15: C54B-05: Explicit Numerical Modeling of Heat Transfer in Glacial Channels, Alexander Jarosch and Thomas Zwinger

 

 

Print

Vesfonna Ice Cap: Mass-balance/elevation feedback

Written by Thomas Zwinger on .

Vestfonna cross sectionFull two-way coupling between mass-balance models and ice flow models brings along substantial technical challenges. In this paper the authors examine some coupling effects for the Vestfonna ice cap, Nordaustlandet, Svalbard, by analyzing the impacts of different coupling intervals on mass-balance and sea-level rise (SLR) projections. They show that neglecting the topographic feedback in the coupling leads to underestimations of 10–20% in SLR projections on century timescales in our model. Fast-flowing outlet glaciers decrease in impacting SLR due to their deceleration and reduced mass flux as they thin and retreat from the coast. By introduction of a method to estimate errors introduced by different coupling schemes it is shown that parameterizing mass-balance adjustment for changes in topography using lapse rates is a cost-effective reasonably accurate alternative to full coupling.

 

Schäfer M., M. Möller, T. Zwinger and J.C. Moore, 2015. Dynamic modelling of future glacier changes: mass-balance/elevation feedback in projections for the Vestfonna ice cap, Nordaustlandet, Svalbard. Journal of Glaciology, 61, 1121-1136 doi:10.3189/2015JoG14J184.

Print

LGGE Advanced Elmer/Ice workshop

Written by Olivier Gagliardini on .

IMG 1074A 3-day advanced workshop took place at LGGE in Grenoble (France) the 30th Nov., 1st and 2nd Dec. 2015. 20 participants, already familiar with Elmer/Ice, attended the workshop. After short presentations given by all participants, a serie of topical lectures were proposed by Olivier Gagliardini, Fabien Gillet-Chaulet, Rupert Gladstone, Joe Todd and Thomas Zwinger. The workshop ended by hands on to participants problems.

The advanced workshop was sponsored by CSCLGGE and the Labex OSUG@2020.

All the material and presentation used during this advanced workshop can be obtained from the Elmer/Ice wiki.

Elmer / Ice project © 2012 -- Conception : iGrafic