A large-scale high-resolution numerical model for sea-ice fragmentation dynamics
Publisher Copyright: Copyright © 2024 Jan Åström et al. Forecasts of sea-ice motion and fragmentation are of vital importance for all human interactions with sea ice, ranging from those involving indigenous hunters to shipping in polar regions. Sea-ice models are also important for simulating long-t...
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Online Access: | https://aaltodoc.aalto.fi/handle/123456789/128347 https://doi.org/10.5194/tc-18-2429-2024 |
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ftaaltouniv:oai:aaltodoc.aalto.fi:123456789/128347 2024-06-23T07:56:40+00:00 A large-scale high-resolution numerical model for sea-ice fragmentation dynamics Åström, Jan Robertsen, Fredrik Haapala, Jari Polojärvi, Arttu Uiboupin, Rivo Maljutenko, Ilja Department of Mechanical Engineering Marine and Arctic Technology CSC - IT Center for Science Ltd. Finnish Meteorological Institute Tallinn University of Technology Aalto-yliopisto Aalto University 2024-05-16 14 application/pdf https://aaltodoc.aalto.fi/handle/123456789/128347 https://doi.org/10.5194/tc-18-2429-2024 en eng Copernicus Publications CRYOSPHERE Volume 18, issue 5, pp. 2429-2442 Åström, J, Robertsen, F, Haapala, J, Polojärvi, A, Uiboupin, R & Maljutenko, I 2024, ' A large-scale high-resolution numerical model for sea-ice fragmentation dynamics ', CRYOSPHERE, vol. 18, no. 5, pp. 2429-2442 . https://doi.org/10.5194/tc-18-2429-2024 1994-0416 1994-0424 PURE UUID: 58b2c74f-bd2d-405b-a795-a7ef07e89830 PURE ITEMURL: https://research.aalto.fi/en/publications/58b2c74f-bd2d-405b-a795-a7ef07e89830 PURE LINK: http://www.scopus.com/inward/record.url?scp=85193491197&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/146956654/tc-18-2429-2024.pdf https://aaltodoc.aalto.fi/handle/123456789/128347 URN:NBN:fi:aalto-202405293949 doi:10.5194/tc-18-2429-2024 openAccess A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä publishedVersion 2024 ftaaltouniv https://doi.org/10.5194/tc-18-2429-2024 2024-06-11T14:18:55Z Publisher Copyright: Copyright © 2024 Jan Åström et al. Forecasts of sea-ice motion and fragmentation are of vital importance for all human interactions with sea ice, ranging from those involving indigenous hunters to shipping in polar regions. Sea-ice models are also important for simulating long-term changes in a warming climate. Here, we apply the Helsinki Discrete Element Model (HiDEM), originally developed for glacier calving, to sea-ice breakup and dynamics. The code is highly optimized to utilize high-end supercomputers to achieve an extreme time and space resolution. Simulated fracture patterns and ice motion are compared with satellite images of the Kvarken region of the Baltic Sea from March 2018. A second application of HiDEM involves ice ridge formation in the Gulf of Riga. With a few tens of graphics processing units (GPUs), the code is capable of reproducing observed ice patterns that in nature may take a few days to form; this is done over an area of ∼100km × 100km, with an 8 m resolution, in computations lasting ∼10 h. The simulations largely reproduce observed fracture patterns, ice motion, fast-ice regions, floe size distributions, and ridge patterns. The similarities and differences between observed and computed ice dynamics and their relation to initial conditions, boundary conditions, and applied driving forces are discussed in detail. The results reported here indicate that the HiDEM has the potential to be developed into a detailed high-resolution model for sea-ice dynamics at short timescales, which, when combined with large-scale and long-term continuum models, may form an efficient framework for forecasts of sea-ice dynamics. Peer reviewed Article in Journal/Newspaper Sea ice Aalto University Publication Archive (Aaltodoc) The Cryosphere 18 5 2429 2442 |
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Open Polar |
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Aalto University Publication Archive (Aaltodoc) |
op_collection_id |
ftaaltouniv |
language |
English |
description |
Publisher Copyright: Copyright © 2024 Jan Åström et al. Forecasts of sea-ice motion and fragmentation are of vital importance for all human interactions with sea ice, ranging from those involving indigenous hunters to shipping in polar regions. Sea-ice models are also important for simulating long-term changes in a warming climate. Here, we apply the Helsinki Discrete Element Model (HiDEM), originally developed for glacier calving, to sea-ice breakup and dynamics. The code is highly optimized to utilize high-end supercomputers to achieve an extreme time and space resolution. Simulated fracture patterns and ice motion are compared with satellite images of the Kvarken region of the Baltic Sea from March 2018. A second application of HiDEM involves ice ridge formation in the Gulf of Riga. With a few tens of graphics processing units (GPUs), the code is capable of reproducing observed ice patterns that in nature may take a few days to form; this is done over an area of ∼100km × 100km, with an 8 m resolution, in computations lasting ∼10 h. The simulations largely reproduce observed fracture patterns, ice motion, fast-ice regions, floe size distributions, and ridge patterns. The similarities and differences between observed and computed ice dynamics and their relation to initial conditions, boundary conditions, and applied driving forces are discussed in detail. The results reported here indicate that the HiDEM has the potential to be developed into a detailed high-resolution model for sea-ice dynamics at short timescales, which, when combined with large-scale and long-term continuum models, may form an efficient framework for forecasts of sea-ice dynamics. Peer reviewed |
author2 |
Department of Mechanical Engineering Marine and Arctic Technology CSC - IT Center for Science Ltd. Finnish Meteorological Institute Tallinn University of Technology Aalto-yliopisto Aalto University |
format |
Article in Journal/Newspaper |
author |
Åström, Jan Robertsen, Fredrik Haapala, Jari Polojärvi, Arttu Uiboupin, Rivo Maljutenko, Ilja |
spellingShingle |
Åström, Jan Robertsen, Fredrik Haapala, Jari Polojärvi, Arttu Uiboupin, Rivo Maljutenko, Ilja A large-scale high-resolution numerical model for sea-ice fragmentation dynamics |
author_facet |
Åström, Jan Robertsen, Fredrik Haapala, Jari Polojärvi, Arttu Uiboupin, Rivo Maljutenko, Ilja |
author_sort |
Åström, Jan |
title |
A large-scale high-resolution numerical model for sea-ice fragmentation dynamics |
title_short |
A large-scale high-resolution numerical model for sea-ice fragmentation dynamics |
title_full |
A large-scale high-resolution numerical model for sea-ice fragmentation dynamics |
title_fullStr |
A large-scale high-resolution numerical model for sea-ice fragmentation dynamics |
title_full_unstemmed |
A large-scale high-resolution numerical model for sea-ice fragmentation dynamics |
title_sort |
large-scale high-resolution numerical model for sea-ice fragmentation dynamics |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://aaltodoc.aalto.fi/handle/123456789/128347 https://doi.org/10.5194/tc-18-2429-2024 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
CRYOSPHERE Volume 18, issue 5, pp. 2429-2442 Åström, J, Robertsen, F, Haapala, J, Polojärvi, A, Uiboupin, R & Maljutenko, I 2024, ' A large-scale high-resolution numerical model for sea-ice fragmentation dynamics ', CRYOSPHERE, vol. 18, no. 5, pp. 2429-2442 . https://doi.org/10.5194/tc-18-2429-2024 1994-0416 1994-0424 PURE UUID: 58b2c74f-bd2d-405b-a795-a7ef07e89830 PURE ITEMURL: https://research.aalto.fi/en/publications/58b2c74f-bd2d-405b-a795-a7ef07e89830 PURE LINK: http://www.scopus.com/inward/record.url?scp=85193491197&partnerID=8YFLogxK PURE FILEURL: https://research.aalto.fi/files/146956654/tc-18-2429-2024.pdf https://aaltodoc.aalto.fi/handle/123456789/128347 URN:NBN:fi:aalto-202405293949 doi:10.5194/tc-18-2429-2024 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.5194/tc-18-2429-2024 |
container_title |
The Cryosphere |
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18 |
container_issue |
5 |
container_start_page |
2429 |
op_container_end_page |
2442 |
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1802649936178708480 |