Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015
Arctic sea ice has displayed significant thinning as well as an increase in drift speed in recent years. Taken together this suggests an associated rise in sea ice deformation rate. A winter and spring expedition to the sea ice covered region north of Svalbard–the Norwegian young sea ICE2015 expedit...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | https://epic.awi.de/id/eprint/46176/ https://epic.awi.de/id/eprint/46176/1/Itkin-2017-JGR.pdf http://onlinelibrary.wiley.com/doi/10.1002/2016JC012403/pdf https://hdl.handle.net/10013/epic.82118de9-d6c5-4542-af9a-7355e9fdc611 |
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ftawi:oai:epic.awi.de:46176 2024-09-15T17:52:15+00:00 Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 Itkin, Polona Spreen, Gunnar Cheng, Bin Doble, Martin Girard-Ardhuin, Fanny Haapala, Jari Hughes, Nick Kaleschke, Lars Nicolaus, Marcel Wilkinson, Jeremy 2017-06-07 application/pdf https://epic.awi.de/id/eprint/46176/ https://epic.awi.de/id/eprint/46176/1/Itkin-2017-JGR.pdf http://onlinelibrary.wiley.com/doi/10.1002/2016JC012403/pdf https://hdl.handle.net/10013/epic.82118de9-d6c5-4542-af9a-7355e9fdc611 unknown Wiley https://epic.awi.de/id/eprint/46176/1/Itkin-2017-JGR.pdf Itkin, P. , Spreen, G. , Cheng, B. , Doble, M. , Girard-Ardhuin, F. , Haapala, J. , Hughes, N. , Kaleschke, L. , Nicolaus, M. orcid:0000-0003-0903-1746 and Wilkinson, J. (2017) Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 , Journal of Geophysical Research-Oceans, 122 (6), pp. 4661-4674 . doi:10.1002/2016JC012403 <https://doi.org/10.1002/2016JC012403> , hdl:10013/epic.82118de9-d6c5-4542-af9a-7355e9fdc611 info:eu-repo/semantics/openAccess EPIC3Journal of Geophysical Research-Oceans, Wiley, 122(6), pp. 4661-4674, ISSN: 0148-0227 Article isiRev info:eu-repo/semantics/article 2017 ftawi https://doi.org/10.1002/2016JC012403 2024-06-24T04:18:50Z Arctic sea ice has displayed significant thinning as well as an increase in drift speed in recent years. Taken together this suggests an associated rise in sea ice deformation rate. A winter and spring expedition to the sea ice covered region north of Svalbard–the Norwegian young sea ICE2015 expedition (N-ICE2015)—gave an opportunity to deploy extensive buoy arrays and to monitor the deformation of the first-year and secondyear ice now common in the majority of the Arctic Basin. During the 5 month long expedition, the ice cover underwent several strong deformation events, including a powerful storm in early February that damaged the ice cover irreversibly. The values of total deformation measured during N-ICE2015 exceed previously measured values in the Arctic Basin at similar scales: At 100 km scale, N-ICE2015 values averaged above 0.1 d-1, compared to rates of 0.08 d-1 or less for previous buoy arrays. The exponent of the power law between the deformation length scale and total deformation developed over the season from 0.37 to 0.54 with an abrupt increase immediately after the early February storm, indicating a weakened ice cover with more free drift of the sea ice floes. Our results point to a general increase in deformation associated with the younger and thinner Arctic sea ice and to a potentially destructive role of winter storms. Article in Journal/Newspaper Arctic Basin Sea ice Svalbard Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Journal of Geophysical Research: Oceans 122 6 4661 4674 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Arctic sea ice has displayed significant thinning as well as an increase in drift speed in recent years. Taken together this suggests an associated rise in sea ice deformation rate. A winter and spring expedition to the sea ice covered region north of Svalbard–the Norwegian young sea ICE2015 expedition (N-ICE2015)—gave an opportunity to deploy extensive buoy arrays and to monitor the deformation of the first-year and secondyear ice now common in the majority of the Arctic Basin. During the 5 month long expedition, the ice cover underwent several strong deformation events, including a powerful storm in early February that damaged the ice cover irreversibly. The values of total deformation measured during N-ICE2015 exceed previously measured values in the Arctic Basin at similar scales: At 100 km scale, N-ICE2015 values averaged above 0.1 d-1, compared to rates of 0.08 d-1 or less for previous buoy arrays. The exponent of the power law between the deformation length scale and total deformation developed over the season from 0.37 to 0.54 with an abrupt increase immediately after the early February storm, indicating a weakened ice cover with more free drift of the sea ice floes. Our results point to a general increase in deformation associated with the younger and thinner Arctic sea ice and to a potentially destructive role of winter storms. |
format |
Article in Journal/Newspaper |
author |
Itkin, Polona Spreen, Gunnar Cheng, Bin Doble, Martin Girard-Ardhuin, Fanny Haapala, Jari Hughes, Nick Kaleschke, Lars Nicolaus, Marcel Wilkinson, Jeremy |
spellingShingle |
Itkin, Polona Spreen, Gunnar Cheng, Bin Doble, Martin Girard-Ardhuin, Fanny Haapala, Jari Hughes, Nick Kaleschke, Lars Nicolaus, Marcel Wilkinson, Jeremy Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 |
author_facet |
Itkin, Polona Spreen, Gunnar Cheng, Bin Doble, Martin Girard-Ardhuin, Fanny Haapala, Jari Hughes, Nick Kaleschke, Lars Nicolaus, Marcel Wilkinson, Jeremy |
author_sort |
Itkin, Polona |
title |
Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 |
title_short |
Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 |
title_full |
Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 |
title_fullStr |
Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 |
title_full_unstemmed |
Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 |
title_sort |
thin ice and storms: sea ice deformation from buoy arrays deployed during n-ice2015 |
publisher |
Wiley |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/46176/ https://epic.awi.de/id/eprint/46176/1/Itkin-2017-JGR.pdf http://onlinelibrary.wiley.com/doi/10.1002/2016JC012403/pdf https://hdl.handle.net/10013/epic.82118de9-d6c5-4542-af9a-7355e9fdc611 |
genre |
Arctic Basin Sea ice Svalbard |
genre_facet |
Arctic Basin Sea ice Svalbard |
op_source |
EPIC3Journal of Geophysical Research-Oceans, Wiley, 122(6), pp. 4661-4674, ISSN: 0148-0227 |
op_relation |
https://epic.awi.de/id/eprint/46176/1/Itkin-2017-JGR.pdf Itkin, P. , Spreen, G. , Cheng, B. , Doble, M. , Girard-Ardhuin, F. , Haapala, J. , Hughes, N. , Kaleschke, L. , Nicolaus, M. orcid:0000-0003-0903-1746 and Wilkinson, J. (2017) Thin ice and storms: Sea ice deformation from buoy arrays deployed during N-ICE2015 , Journal of Geophysical Research-Oceans, 122 (6), pp. 4661-4674 . doi:10.1002/2016JC012403 <https://doi.org/10.1002/2016JC012403> , hdl:10013/epic.82118de9-d6c5-4542-af9a-7355e9fdc611 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2016JC012403 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
122 |
container_issue |
6 |
container_start_page |
4661 |
op_container_end_page |
4674 |
_version_ |
1810294305998241792 |