Elmer/Ice News

Elmer/Ice course in Hobart, Tasmania

Rupert Gladstone (This email address is being protected from spambots. You need JavaScript enabled to view it.) will be leading Elmer/Ice training at the Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) in Hobart from 12th to 14th November 2014.  This is primarily for Australian Antarctic Division (AAD) and University of Tasmania (UTas) staff, but guest places are available.  The course level will be introductory to intermediate, making use of material prepared by Thomas Zwinger, Olivier Gagliardini and Fabien Gillet-Chaulet for previous courses. For any further details, please contact Rupert.

A thermal regime model for polythermal glaciers

gouterAnalysis of the thermal and mechanical response of high altitude glaciers to climate change is
crucial to assess future glacier hazards associated with thermal regime changes. This paper presents a new fully
thermo-mechanically coupled transient thermal regime model including enthalpy transport, firn densification,
full-Stokes porous flow, free surface evolution, strain heating, surface meltwater percolation, and refreezing.
Themodel is forced by daily air temperature data and can therefore be used to perform prognostic simulations
for different future climate scenarios. The set of equations is solved using the finite element ice sheet/ice flow
model Elmer/Ice. This model is applied to the Col du Dôme glacier (Mont Blanc area, 4250ma.s.l., France) where
a comprehensive data set is available. The results show that the model is capable of reproducing observed
density and velocity fields as well as borehole temperature evolution. The strong spatial variability of englacial
temperature change observed at Col du Dôme is well reproduced. This spatial variability ismainly a result of the
variability of the slope aspect of the glacier surface and snow accumulation. Results support the use of this
model to study the influence of climate change on cold accumulation zones, in particular to estimate where
and under what conditions glaciers will become temperate in the future.

Gilbert, A., O. Gagliardini, C. Vincent, and P. Wagnon, 2014. A 3-D thermal regime model suitable for cold accumulation zones of polythermal mountain glaciers, J. Geophys. Res. Earth Surf., 119, doi:10.1002/2014JF003199.



New beginner Elmer/Ice course

SVALI Elmer/Ice course, Reykjavík, Iceland, October 27-29, 2014

IMO in cooperation with CSC (Finland) and LGGE (France) will organize a 3-day Elmer/Ice course on the 27th, 28th and 29th of October 2014, just before the Nordic Branch IGS meeting in Iceland. The third day of the course will be dedicated to start working on your applications. The course is intended for persons who want to start using Elmer/Ice in their research projects with an option to go into special details on the second day. The course is sponsored by the Nordic Centre of Excellence, SVALI. There are in maximum 18 seats which by preference will be offered to SVALI members. The rest of the seats are given on a first-come-first-get principle. The course itself is free of charge. Participants are responsible for their own accommodation and travel (see instructions below). Further it is expected, that participants bring along their own laptop with a working Elmer/Ice environment installed (instructions will follow later).

Lectures are in English.
Lecturers: Olivier Gagliardini, Thomas Zwinger.
Venue: IMO, Bústaðavegur 9, Reykjavík.
Travel: For air travel to Iceland see “icelandair.com” and “dohop.com” (further instructions about how to get to the IMO will follow later).
Accommodation: For reasonably priced guesthouses check “kexhostel.is/” and “guesthousereykjavik.com/”.
Registration: By email to Anna Sinisalo (a.k.sinisalo[at]geo[dot]uio[dot]no), latest by 11th October, 2014.

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