Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018
In summer 2018, thick sea ice blocked the mouth of the Amundsen Gulf (AG), Canada, obstructing shipping through the North-west Passage. This study analysed multi-year ice motion to investigate the source of this thick ice and the reasons for its unusual movement. For this purpose, a daily multi-year...
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Norwegian Polar Institute
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ftjpolarres:oai:journals.openacademia.net:article/3617 2023-05-15T13:22:55+02:00 Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 Kimura, Noriaki Tateyama, Kazutaka Sato, Kazutoshi Krishfield, Richard A. Yamaguchi, Hajime 2020-10-14 text/html application/pdf application/epub+zip text/xml https://polarresearch.net/index.php/polar/article/view/3617 https://doi.org/10.33265/polar.v39.3617 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3617/11326 https://polarresearch.net/index.php/polar/article/view/3617/11280 https://polarresearch.net/index.php/polar/article/view/3617/11281 https://polarresearch.net/index.php/polar/article/view/3617/11282 https://polarresearch.net/index.php/polar/article/view/3617 doi:10.33265/polar.v39.3617 Copyright (c) 2020 Noriaki Kimura, Kazutaka Tateyama, Kazutoshi Sato, Richard A. Krishfield, Hajime Yamaguchi https://creativecommons.org/licenses/by-nd/4.0 CC-BY-ND Polar Research; Vol 39 (2020) 1751-8369 Sea-ice motion satellite remote sensing shipping North-west Passage info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftjpolarres https://doi.org/10.33265/polar.v39.3617 2021-11-11T19:14:21Z In summer 2018, thick sea ice blocked the mouth of the Amundsen Gulf (AG), Canada, obstructing shipping through the North-west Passage. This study analysed multi-year ice motion to investigate the source of this thick ice and the reasons for its unusual movement. For this purpose, a daily multi-year ice distribution product was generated by ice tracking using gridded daily sea-ice velocities (2003–2018) derived from the AMSR-E and AMSR-2 data. From autumn 2017 to summer 2018, the area of multi-year ice extended westward to the Beaufort Sea and then migrated towards the AG mouth. The primary cause of the unusual ice cover was anomalous AG-ward wind in September 2018. It is known that multi-year ice has become increasingly moveable over the past decades, as indicated by the increasing wind factor (i.e., ratio of ice-drift speed and wind speed), but the unusual ice motion in the summer of 2018 cannot be explainable by the wind factor alone. Accurately, predicting monthly wind and monitoring old thick ice will reduce the risk posed by thick Arctic sea ice to shipping. Article in Journal/Newspaper Amundsen Gulf Arctic Beaufort Sea North West Passage Polar Research Sea ice Polar Research (E-Journal) Arctic Canada Polar Research 39 0 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Sea-ice motion satellite remote sensing shipping North-west Passage |
spellingShingle |
Sea-ice motion satellite remote sensing shipping North-west Passage Kimura, Noriaki Tateyama, Kazutaka Sato, Kazutoshi Krishfield, Richard A. Yamaguchi, Hajime Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 |
topic_facet |
Sea-ice motion satellite remote sensing shipping North-west Passage |
description |
In summer 2018, thick sea ice blocked the mouth of the Amundsen Gulf (AG), Canada, obstructing shipping through the North-west Passage. This study analysed multi-year ice motion to investigate the source of this thick ice and the reasons for its unusual movement. For this purpose, a daily multi-year ice distribution product was generated by ice tracking using gridded daily sea-ice velocities (2003–2018) derived from the AMSR-E and AMSR-2 data. From autumn 2017 to summer 2018, the area of multi-year ice extended westward to the Beaufort Sea and then migrated towards the AG mouth. The primary cause of the unusual ice cover was anomalous AG-ward wind in September 2018. It is known that multi-year ice has become increasingly moveable over the past decades, as indicated by the increasing wind factor (i.e., ratio of ice-drift speed and wind speed), but the unusual ice motion in the summer of 2018 cannot be explainable by the wind factor alone. Accurately, predicting monthly wind and monitoring old thick ice will reduce the risk posed by thick Arctic sea ice to shipping. |
format |
Article in Journal/Newspaper |
author |
Kimura, Noriaki Tateyama, Kazutaka Sato, Kazutoshi Krishfield, Richard A. Yamaguchi, Hajime |
author_facet |
Kimura, Noriaki Tateyama, Kazutaka Sato, Kazutoshi Krishfield, Richard A. Yamaguchi, Hajime |
author_sort |
Kimura, Noriaki |
title |
Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 |
title_short |
Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 |
title_full |
Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 |
title_fullStr |
Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 |
title_full_unstemmed |
Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 |
title_sort |
unusual drift behaviour of multi-year sea ice in the beaufort sea during summer 2018 |
publisher |
Norwegian Polar Institute |
publishDate |
2020 |
url |
https://polarresearch.net/index.php/polar/article/view/3617 https://doi.org/10.33265/polar.v39.3617 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Amundsen Gulf Arctic Beaufort Sea North West Passage Polar Research Sea ice |
genre_facet |
Amundsen Gulf Arctic Beaufort Sea North West Passage Polar Research Sea ice |
op_source |
Polar Research; Vol 39 (2020) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3617/11326 https://polarresearch.net/index.php/polar/article/view/3617/11280 https://polarresearch.net/index.php/polar/article/view/3617/11281 https://polarresearch.net/index.php/polar/article/view/3617/11282 https://polarresearch.net/index.php/polar/article/view/3617 doi:10.33265/polar.v39.3617 |
op_rights |
Copyright (c) 2020 Noriaki Kimura, Kazutaka Tateyama, Kazutoshi Sato, Richard A. Krishfield, Hajime Yamaguchi https://creativecommons.org/licenses/by-nd/4.0 |
op_rightsnorm |
CC-BY-ND |
op_doi |
https://doi.org/10.33265/polar.v39.3617 |
container_title |
Polar Research |
container_volume |
39 |
container_issue |
0 |
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1766367906042478592 |