Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10
Accurate representation of fast ice in numerical models is important for realistic simulation of numerous sea-ice and ocean variables. In order to simulate seasonal and interannual variability of fast-ice extent, the mechanisms controlling fast-ice development need to be thoroughly understood. The o...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Norwegian Polar Institute
2017
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Online Access: | https://doi.org/10.1080/17518369.2017.1411140 https://doaj.org/article/872636e4420b44f4be60221c3da0e109 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:872636e4420b44f4be60221c3da0e109 2023-05-15T17:07:12+02:00 Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10 Valeria Selyuzhenok Andrew Mahoney Thomas Krumpen Giulia Castellani Rüdiger Gerdes 2017-01-01 https://doi.org/10.1080/17518369.2017.1411140 https://doaj.org/article/872636e4420b44f4be60221c3da0e109 en eng Norwegian Polar Institute 1751-8369 doi:10.1080/17518369.2017.1411140 https://doaj.org/article/872636e4420b44f4be60221c3da0e109 undefined Polar Research, Vol 36, Iss 1 (2017) Landfast ice stamukha SAR EM sea-ice thickness Lagrangian drift geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.1080/17518369.2017.1411140 2023-01-22T19:33:34Z Accurate representation of fast ice in numerical models is important for realistic simulation of numerous sea-ice and ocean variables. In order to simulate seasonal and interannual variability of fast-ice extent, the mechanisms controlling fast-ice development need to be thoroughly understood. The objective of this paper is to investigate mechanisms contributing to the advance of fast-ice edge to its winter location in the south-eastern Laptev Sea. The study is based on time series of synthetic aperture radar (SAR) imagery for winter 2007/08 and 2009/10. A detailed examination of SAR-based ice drift showed that several grounded ice features are formed offshore prior to fast-ice expansion. These features play a key role in offshore advance of the fast-ice edge and serve as stabilizing points for surrounding pack ice as it becomes landfast. Electromagnetic ice thickness measurements suggest that the grounded ice ridges over water depths of ca. 20 m water might be responsible for interannual variations in fast-ice edge position. Contrary to previous studies, we conclude that grounding is a key mechanism of fast-ice development in the south-eastern Laptev Sea. Article in Journal/Newspaper laptev Laptev Sea Polar Research Sea ice Unknown Laptev Sea Polar Research 36 1 1411140 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Landfast ice stamukha SAR EM sea-ice thickness Lagrangian drift geo envir |
spellingShingle |
Landfast ice stamukha SAR EM sea-ice thickness Lagrangian drift geo envir Valeria Selyuzhenok Andrew Mahoney Thomas Krumpen Giulia Castellani Rüdiger Gerdes Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10 |
topic_facet |
Landfast ice stamukha SAR EM sea-ice thickness Lagrangian drift geo envir |
description |
Accurate representation of fast ice in numerical models is important for realistic simulation of numerous sea-ice and ocean variables. In order to simulate seasonal and interannual variability of fast-ice extent, the mechanisms controlling fast-ice development need to be thoroughly understood. The objective of this paper is to investigate mechanisms contributing to the advance of fast-ice edge to its winter location in the south-eastern Laptev Sea. The study is based on time series of synthetic aperture radar (SAR) imagery for winter 2007/08 and 2009/10. A detailed examination of SAR-based ice drift showed that several grounded ice features are formed offshore prior to fast-ice expansion. These features play a key role in offshore advance of the fast-ice edge and serve as stabilizing points for surrounding pack ice as it becomes landfast. Electromagnetic ice thickness measurements suggest that the grounded ice ridges over water depths of ca. 20 m water might be responsible for interannual variations in fast-ice edge position. Contrary to previous studies, we conclude that grounding is a key mechanism of fast-ice development in the south-eastern Laptev Sea. |
format |
Article in Journal/Newspaper |
author |
Valeria Selyuzhenok Andrew Mahoney Thomas Krumpen Giulia Castellani Rüdiger Gerdes |
author_facet |
Valeria Selyuzhenok Andrew Mahoney Thomas Krumpen Giulia Castellani Rüdiger Gerdes |
author_sort |
Valeria Selyuzhenok |
title |
Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10 |
title_short |
Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10 |
title_full |
Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10 |
title_fullStr |
Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10 |
title_full_unstemmed |
Mechanisms of fast-ice development in the south-eastern Laptev Sea: a case study for winter of 2007/08 and 2009/10 |
title_sort |
mechanisms of fast-ice development in the south-eastern laptev sea: a case study for winter of 2007/08 and 2009/10 |
publisher |
Norwegian Polar Institute |
publishDate |
2017 |
url |
https://doi.org/10.1080/17518369.2017.1411140 https://doaj.org/article/872636e4420b44f4be60221c3da0e109 |
geographic |
Laptev Sea |
geographic_facet |
Laptev Sea |
genre |
laptev Laptev Sea Polar Research Sea ice |
genre_facet |
laptev Laptev Sea Polar Research Sea ice |
op_source |
Polar Research, Vol 36, Iss 1 (2017) |
op_relation |
1751-8369 doi:10.1080/17518369.2017.1411140 https://doaj.org/article/872636e4420b44f4be60221c3da0e109 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/17518369.2017.1411140 |
container_title |
Polar Research |
container_volume |
36 |
container_issue |
1 |
container_start_page |
1411140 |
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1766062487446224896 |