Sea-ice thickness from field measurements in the northwestern Barents Sea
The Barents Sea is one of the fastest changing regions of the Arctic, and has experienced the strongest decline in winter-time sea-ice area in the Arctic, at -23 +/- 4% per decade. Sea-ice thickness in the Barents Sea is not well studied. We present two previously unpublished helicopter-borne electr...
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ftawi:oai:epic.awi.de:44987 2023-05-15T14:29:17+02:00 Sea-ice thickness from field measurements in the northwestern Barents Sea King, Jennifer Spreen, Gunnar Gerland, Sebastian Haas, Christian Hendricks, Stefan Kaleschke, Lars Wang, Caixin 2017-02-25 https://epic.awi.de/id/eprint/44987/ http://onlinelibrary.wiley.com/doi/10.1002/2016JC012199/abstract https://hdl.handle.net/10013/epic.51195 unknown Wiley King, J. , Spreen, G. , Gerland, S. , Haas, C. orcid:0000-0002-7674-3500 , Hendricks, S. orcid:0000-0002-1412-3146 , Kaleschke, L. and Wang, C. (2017) Sea-ice thickness from field measurements in the northwestern Barents Sea , Journal of Geophysical Research-Oceans, 122 (2), pp. 1497-1512 . doi:10.1002/2016JC012199 <https://doi.org/10.1002/2016JC012199> , hdl:10013/epic.51195 EPIC3Journal of Geophysical Research-Oceans, Wiley, 122(2), pp. 1497-1512, ISSN: 0148-0227 Article isiRev 2017 ftawi https://doi.org/10.1002/2016JC012199 2021-12-24T15:43:06Z The Barents Sea is one of the fastest changing regions of the Arctic, and has experienced the strongest decline in winter-time sea-ice area in the Arctic, at -23 +/- 4% per decade. Sea-ice thickness in the Barents Sea is not well studied. We present two previously unpublished helicopter-borne electromagnetic (HEM) ice thickness measurements from the northwestern Barents Sea acquired in March 2003 and 2014. The HEM data are compared to ice thickness calculated from ice draft measured by ULS deployed between 1994 and 1996. These data show that ice thickness varies greatly from year to year; influenced by the thermodynamic and dynamic processes that govern local formation vs long-range advection. In a year with a large inflow of sea-ice from the Arctic Basin, the Barents Sea ice cover is dominated by thick multiyear ice; as was the case in 2003 and 1995. In a year with an ice cover that was mainly grown in situ, the ice will be thin and mechanically unstable; as was the case in 2014. The HEM data allow us to explore the spatial and temporal variability in ice thickness. In 2003 the dominant ice class was more than 2 years old; and modal sea-ice thickness varied regionally from 0.6 to 1.4 m, with the thinner ice being either first-year ice, or multiyear ice which had come into contact with warm Atlantic water. In 2014 the ice cover was predominantly locally grown ice less than 1 month old (regional modes of 0.5–0.8 m). These two situations represent two extremes of a range of possible ice thickness distributions that can present very different conditions for shipping traffic; or have a different impact on heat transport from ocean to atmosphere. Article in Journal/Newspaper Arctic Basin Arctic Barents Sea Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Barents Sea Journal of Geophysical Research: Oceans 122 2 1497 1512 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
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description |
The Barents Sea is one of the fastest changing regions of the Arctic, and has experienced the strongest decline in winter-time sea-ice area in the Arctic, at -23 +/- 4% per decade. Sea-ice thickness in the Barents Sea is not well studied. We present two previously unpublished helicopter-borne electromagnetic (HEM) ice thickness measurements from the northwestern Barents Sea acquired in March 2003 and 2014. The HEM data are compared to ice thickness calculated from ice draft measured by ULS deployed between 1994 and 1996. These data show that ice thickness varies greatly from year to year; influenced by the thermodynamic and dynamic processes that govern local formation vs long-range advection. In a year with a large inflow of sea-ice from the Arctic Basin, the Barents Sea ice cover is dominated by thick multiyear ice; as was the case in 2003 and 1995. In a year with an ice cover that was mainly grown in situ, the ice will be thin and mechanically unstable; as was the case in 2014. The HEM data allow us to explore the spatial and temporal variability in ice thickness. In 2003 the dominant ice class was more than 2 years old; and modal sea-ice thickness varied regionally from 0.6 to 1.4 m, with the thinner ice being either first-year ice, or multiyear ice which had come into contact with warm Atlantic water. In 2014 the ice cover was predominantly locally grown ice less than 1 month old (regional modes of 0.5–0.8 m). These two situations represent two extremes of a range of possible ice thickness distributions that can present very different conditions for shipping traffic; or have a different impact on heat transport from ocean to atmosphere. |
format |
Article in Journal/Newspaper |
author |
King, Jennifer Spreen, Gunnar Gerland, Sebastian Haas, Christian Hendricks, Stefan Kaleschke, Lars Wang, Caixin |
spellingShingle |
King, Jennifer Spreen, Gunnar Gerland, Sebastian Haas, Christian Hendricks, Stefan Kaleschke, Lars Wang, Caixin Sea-ice thickness from field measurements in the northwestern Barents Sea |
author_facet |
King, Jennifer Spreen, Gunnar Gerland, Sebastian Haas, Christian Hendricks, Stefan Kaleschke, Lars Wang, Caixin |
author_sort |
King, Jennifer |
title |
Sea-ice thickness from field measurements in the northwestern Barents Sea |
title_short |
Sea-ice thickness from field measurements in the northwestern Barents Sea |
title_full |
Sea-ice thickness from field measurements in the northwestern Barents Sea |
title_fullStr |
Sea-ice thickness from field measurements in the northwestern Barents Sea |
title_full_unstemmed |
Sea-ice thickness from field measurements in the northwestern Barents Sea |
title_sort |
sea-ice thickness from field measurements in the northwestern barents sea |
publisher |
Wiley |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/44987/ http://onlinelibrary.wiley.com/doi/10.1002/2016JC012199/abstract https://hdl.handle.net/10013/epic.51195 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Basin Arctic Barents Sea Sea ice |
genre_facet |
Arctic Basin Arctic Barents Sea Sea ice |
op_source |
EPIC3Journal of Geophysical Research-Oceans, Wiley, 122(2), pp. 1497-1512, ISSN: 0148-0227 |
op_relation |
King, J. , Spreen, G. , Gerland, S. , Haas, C. orcid:0000-0002-7674-3500 , Hendricks, S. orcid:0000-0002-1412-3146 , Kaleschke, L. and Wang, C. (2017) Sea-ice thickness from field measurements in the northwestern Barents Sea , Journal of Geophysical Research-Oceans, 122 (2), pp. 1497-1512 . doi:10.1002/2016JC012199 <https://doi.org/10.1002/2016JC012199> , hdl:10013/epic.51195 |
op_doi |
https://doi.org/10.1002/2016JC012199 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
122 |
container_issue |
2 |
container_start_page |
1497 |
op_container_end_page |
1512 |
_version_ |
1766303337540485120 |