Cryosphere Working Group: ice sheet model coupling

Cryosphere
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This topic is for discussing the approach for including ice sheet models into ACCESS-NRI

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Hi all,

Here’s a place where we can discuss ice sheet model coupling issues.

As a starting point, below is the framework for advising ACCESS-NRI on how to include ice sheet models, as outlined in our WG meeting on 23 August 2023. Please let us know your feedback by commenting directly here by 7 September 2023: ACCESS-NRI framework for choosing ice sheet model - Google Docs

We’ll be discussing in more depth at the ACCESS-NRI workshop.

Warmly,
Felicity

ACCESS-NRI framework for choosing ice sheet model (1).pdf (47.3 KB)

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Hi all,

I would like to give an update about the use of Elmer/Ice ice sheet model in Australian community and the strong connections with other Elmer/Ice groups around the world.

Elmer/Ice activities in Australian community (UTAS) and international collaborations:

  • full-stokes model for Fleming/Wikes glacier system, Denmman/Shacktone glacier system
  • SSA model for Wilkes Subglacial Basin and whole Antarctic Ice Sheet
  • contribution to ISMIP6_2100 (full-stokes), ISMIP6_2300 (SSA)
  • contribution to MISOMIP1 (coupled ice ocean model using Elmer/Ice-ROMS, Elmer/Ice-FVCOM)
  • coupled ice ocean model for Fimbul Ice Shelf (Elmer/Ice-FVCOM; working Norwegian Polar Institute)
  • coupled ice subglacial hydrology model for Wilkes Subglacial Basin and whole Antarctic Ice Sheet (Elmer/Ice-GlaDS)
  • calving implementation in Elmer/Ice in the International Thwaites Glacier (Domino project; working with Prof Doug Benn)
  • developing the anisotropy solver in Elmer/Ice in the International Thwaites Glacier Collaboration (TIME project; working with Dr Tun Jan Young and Prof Doug Benn).
  • The French IPSL Climate model uses the OASIS coupler (same as ACCESS) but the ocean model is NEMO (which BOM uses).

Connection between Australian community and international Elmer/Ice groups:

  • Thomas Zwinger from CSC-IT center for Science, key developer of Elmer/Ice, maintainer of Elmer/Ice on NCI Gadi.
  • Rupert Gladstone from University of Lapland, active user and contributor to Elmer/Ice development, key developer of FISOC (framework used to couple Elmer/Ice and ocean models including ROMS, FVCOM)
  • Olivier Gagliardini (key developer of Elmer/Ice), Fabien Gillet-Chaullet (key developer of Elmer/Ice), Nicolas Jourdain (ocean modeller), Gael Durand in IGE and Univ. Grenoble Alpes.
  • Doug Benn and Tun Jan Young in St Andrews, who works with Elmer/Ice for calving implementation for Greenland and Thwaites Glacier.

Coupling Elmer/Ice with climate models:

The French team are working on the integration of Elmer/Ice into the IPSL-CM model with important support within IPSL-CM for the next 8 years. There will be further progress that could be beneficial to Australia in case we choose Elmer/Ice. The French IPSL Climate model uses the OASIS coupler (same as ACCESS) but the ocean model is NEMO (which BOM uses).

DECRA fellowship on ice sheet modelling project using Elmer/Ice (2024-2026):

This DECRA project aims to significantly reduce the uncertainties in future projections of the Antarctic contribution to global and regional sea-level rise. This will be achieved by including, for the first time, the influence of interactions with the subglacial hydrologic system and surrounding ocean circulation on the ice sheet dynamics, using a coupled ice–ocean–hydrology model. This research will build on Dr Zhao’s international expertise in ice sheet modelling and coupled ice–ocean modelling. This project provide substantial benefits to Australia and internationally, particularly in regions vulnerable to rising sea levels, by producing more accurate sea-level rise projections for policy and mitigation strategies.

Best regards,
Chen