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Section 1: Summary of your model
Model Submitter:
Dan Sandiford (0000-0002-2207-6837)
Model Creator(s):
- Till Sachau (0000-0002-3790-1385)
- Haibin Yang (0000-0002-8628-3704)
- Paul D. Bons (0000-0002-6469-3526)
- Louis-Noel Moresi (0000-0003-3685-174X)
Model slug:
sachau-2022-icesheet
(this will be the name of the model repository when created)
Model name:
ISMIP-HOM benchmark experiments using Underworld
License:
Creative Commons Attribution 4.0 International
Model Category:
- community benchmark
- forward model
Model Status:
- completed
Associated Publication title:
ISMIP-HOM benchmark experiments using Underworld
Short description:
Knowledge of the internal structures of the major continental ice sheets is improving, thanks to new investigative techniques. These structures are an essential indication of the flow behavior and dynamics of ice transport, which in turn is important for understanding the actual impact of the vast amounts of water trapped in continental ice sheets on global sea-level rise. The software studied here is specifically designed to simulate such structures and their evolution.
Abstract:
Abstract. Numerical models have become an indispensable tool for understanding and predicting the flow of ice sheets and glaciers. Here we present the full-Stokes software package Underworld to the glaciological community. The code is already well established in simulating complex geodynamic systems. Advantages for glaciology are that it provides a full-Stokes solution for elastic–viscous–plastic materials and includes mechanical anisotropy. Underworld uses a material point method to track the full history information of Lagrangian material points, of stratigraphic layers and of free surfaces. We show that Underworld successfully reproduces the results of other full-Stokes models for the benchmark experiments of the Ice Sheet Model Intercomparison Project for Higher-Order Models (ISMIP-HOM). Furthermore, we test finite-element meshes with different geometries and highlight the need to be able to adapt the finite-element grid to discontinuous interfaces between materials with strongly different properties, such as the ice–bedrock boundary.
Scientific Keywords:
- ice-sheet
- benchmark
- Stokes
- anisotropy
- mechanical
Funder(s):
- AuScope (https://ror.org/04s1m4564)
- University of Tübingen (https://ror.org/03a1kwz48)
Section 2: your model code, output data
No embargo on model contents requested
Include model code:
True
Model code existing URL/DOI:
https://doi.org/10.5281/zenodo.7384424
Include model output data:
True
Model output data, existing URL/DOI:
https://doi.org/10.5281/zenodo.7384424
Section 3: software framework and compute details
Software Framework DOI/URL:
Found software: Underworld2: Python Geodynamics Modelling for Desktop, HPC and Cloud
Name of primary software framework:
Underworld2: Python Geodynamics Modelling for Desktop, HPC and Cloud
Software & algorithm keywords:
- Python
- Finite-Element
- Particle-in-cell
Section 4: web material (for mate.science)
Landing page image:
Filename: gmd-15-8749-2022-f09.png
Caption: Marker lines prior to (a) and after 750 years of flow of (b) isotropic and (c) anisotropic ice. The axial plane of the resulting shear fold in isotropic ice mimics the bedrock topography, while it is controlled by shearing along a horizontal shear zone in the case of anisotropic ice. Green: bedrock, flow to the right.
Animation:
Filename: []()
Graphic abstract:
Filename: graphic_abstract.png
Caption: Velocity field and strain rate field in isotropic ice (1) and inisotropic ice (2). Large strain rates and velocities occur in the vicinity of the bottleneck formed by the crest of the hill. Green: bedrock. For velocity, red is 70 m a−1 and blue is 0 m a−1. For strain rate, red is 0.032 $a^{−1}$, and blue is 0 $a^{−1}$.
Model setup figure:
Filename: gmd-15-8749-2022-f01-web.png
Caption: (a) 2D geometry of Experiment B. This is identical to a section parallel X located at yˆ = 0.25 in Experiment A (right). Sloping angle α is given in degrees. Also depicted is the velocity field of the flowing ice, resulting for a model width L of 5000 m from the simulations described below. Color and arrow length visualize the amount of velocity. (b) Bedrock topography for Experiment A and general naming scheme for the axes of 3D experiments.
Errors and Warnings
Associated Publication Error fetching metadata with application/ld+json from https://api.crossref.org/works/https://doi.org/10.5194/gmd-15-8749-2022: 406 Client Error: Not Acceptable for url: https://api.crossref.org/works/https://doi.org/10.5194/gmd-15-8749-2022 Software Framework DOI/URI doi.org metadata record succesfully extracted in json-ld format Software Repository Warning: no repository URL provided. Submitter ORCID metadata record succesfully extracted in json-ld format
Model creators ORCID metadata record succesfully extracted in json-ld format ORCID metadata record succesfully extracted in json-ld format
- Error: name
Justin Langin unexpected format. Expectedlast name(s), first name(s)or ORCID. ORCID metadata record succesfully extracted in json-ld format ORCID metadata record succesfully extracted in json-ld format Could not parse Embargo date. Check format is
Model code/inputs notes Warning: No notes provided. Model creators Error: no data creators found Model data notes Warning: No notes provided. Computer URI/DOI Warning: No URI/DOI provided. Animation Warning: No animation uploaded.
Model setup description Warning: No description given
Next steps
- once the
model_reviewersteam has approved the model, we will create a repository for your model
-> submitter ORCID (or name)
0000-0002-2207-6837
-> slug
sachau-2022-icesheet
-> license
CC-BY-4.0
-> alternative license URL
No response
-> model category
community benchmark, forward model
-> model status
completed
-> associated publication DOI
https://doi.org/10.5194/gmd-15-8749-2022
-> model creators
0000-0002-3790-1385 0000-0002-8628-3704 Justin Lang 0000-0002-6469-3526 https://orcid.org/0000-0003-3685-174X
-> title
No response
-> description
Knowledge of the internal structures of the major continental ice sheets is improving, thanks to new investigative techniques. These structures are an essential indication of the flow behavior and dynamics of ice transport, which in turn is important for understanding the actual impact of the vast amounts of water trapped in continental ice sheets on global sea-level rise. The software studied here is specifically designed to simulate such structures and their evolution.
-> abstract
No response
-> scientific keywords
ice-sheet, benchmark, Stokes, anisotropy, mechanical
-> funder
https://ror.org/04s1m4564 https://ror.org/03a1kwz48
-> model embargo?
No response
-> include model code ?
-> model code/inputs DOI
https://doi.org/10.5281/zenodo.7384424
-> model code/inputs notes
No response
-> include model output data?
-> data creators
No response
-> model output data DOI
https://doi.org/10.5281/zenodo.7384424
-> model output data notes
No response
-> model output data size
2.9 Mb
-> software framework DOI/URI
https://doi.org/10.5281/zenodo.5935717
-> software framework source repository
No response
-> name of primary software framework (e.g. Underworld, ASPECT, Badlands, OpenFOAM)
No response
-> software framework authors
No response
-> software & algorithm keywords
Python, Finite-Element, Particle-in-cell
-> computer URI/DOI
No response
-> add landing page image and caption
-> add an animation (if relevant)
No response
-> add a graphic abstract figure (if relevant)
-> add a model setup figure (if relevant)
-> add a description of your model setup
No response
Please provide any feedback on the model submission process?
No response