Abstract:
This dataset contains data for the plots in Figures 3 and 4 in the article: Effective rheology
across the fragmentation transition for sea ice and ice shelves, Åström, and D.I. Benn,
GRL, 2019. The data is produced with the numerical simulation code HiDEM, which is an
open source code that can be found at: https://github.com/joeatodd/HiDEM. The data plots
in the paper contain the data used as benchmarks for testing the reliability of the simulations
(Fig.3), and the main results (Fig. 4), the effective rheology of sea ice across the fragmentation transition.
Funding was provided by the NERC grant NE/P011365/1 Calving Laws for Ice Sheet
Models CALISMO.
Keywords:
fragmentation, rheology, sea ice, simulation
Åström, J., & Benn, D. (2019). Numerical simulations of the effective rheology across the fragmentation transition for sea ice and ice shelves (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/76d7d3ca-7b83-4bb0-aae5-a8e92c7da5b0
| Use Constraints: | This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
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| Creation Date: | 2019-10-10 |
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| Dataset Progress: | Planned |
| Dataset Language: | English |
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| Parameters: |
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| Personnel: | |
| Name | Jan A Åström |
| Role(s) | Metadata Author, Investigator, Technical Contact |
| Name | Doug I Benn |
| Role(s) | Investigator |
| Parent Dataset: | N/A |
| Reference: | Effective rheology across the fragmentation transition for sea ice and ice shelves, J.A. Åström, and D.I. Benn, GRL, 2019. |
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| Quality: | Accuracy of the data is only limited by the "Double Precision" accuracy of the computations. | |
| Lineage: | The data contain output from numerical simulations of the fragmentation of sea ice. In particular, the data contain the outputs for benchmarking tests of the computational model as well as computed effective viscosity and stiffness. The benchmarks are: The fragment size distribution, the keel-depth distribution, the strain-rate distribution, and the power-spectra of cracks. The data is described in detail in the paper: Effective rheology across the fragmentation transition for sea ice and ice shelves, J.A. Åström , and D.I. Benn, GRL, 2019. The data correspond to Figures 3 and 4 in this paper. |
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| Data Collection: | The HiDEM code was used to produce the data. GitHub code repository: https://github.com/joeatodd/HiDEM |
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| Data Storage: | There are 12 data files in ASCII format. All data are in two columns that correspond to horizontal and vertical axes in Figs 3 and 4 in the paper. The data is in such format that if the printed figures have a log-scale on an axis the data is in logarithmic scale (i.e. if a logarithmic data is "x" it correspond to the value 10 x). The files Fig3a.dat, ..,Fig3d.dat contain the data in Fig3a-d. Fig4a-eta1.dat - Fig4a-eta3.dat contain the viscosity data for Fig3a, while the files with "G" instead of "eta" contain the shear modulus data. Similarly for fig4b. |
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