MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years
We combine satellite data products to provide a first and general overview of the physical sea ice conditions along the drift of the international Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition and a comparison with previous years (2005–2006 to 2018–2019)....
Published in: | The Cryosphere |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus Publications
2021
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Online Access: | https://doi.org/10.5194/tc-15-3897-2021 https://tc.copernicus.org/articles/15/3897/2021/tc-15-3897-2021.pdf https://doaj.org/article/968cf815e89a40229c5894c30c70fe9b |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:968cf815e89a40229c5894c30c70fe9b 2023-05-15T15:13:48+02:00 MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years T. Krumpen L. von Albedyll H. F. Goessling S. Hendricks B. Juhls G. Spreen S. Willmes H. J. Belter K. Dethloff C. Haas L. Kaleschke C. Katlein X. Tian-Kunze R. Ricker P. Rostosky J. Rückert S. Singha J. Sokolova 2021-08-01 https://doi.org/10.5194/tc-15-3897-2021 https://tc.copernicus.org/articles/15/3897/2021/tc-15-3897-2021.pdf https://doaj.org/article/968cf815e89a40229c5894c30c70fe9b en eng Copernicus Publications doi:10.5194/tc-15-3897-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/3897/2021/tc-15-3897-2021.pdf https://doaj.org/article/968cf815e89a40229c5894c30c70fe9b undefined The Cryosphere, Vol 15, Pp 3897-3920 (2021) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5194/tc-15-3897-2021 2023-01-22T19:23:54Z We combine satellite data products to provide a first and general overview of the physical sea ice conditions along the drift of the international Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition and a comparison with previous years (2005–2006 to 2018–2019). We find that the MOSAiC drift was around 20 % faster than the climatological mean drift, as a consequence of large-scale low-pressure anomalies prevailing around the Barents–Kara–Laptev sea region between January and March. In winter (October–April), satellite observations show that the sea ice in the vicinity of the Central Observatory (CO; 50 km radius) was rather thin compared to the previous years along the same trajectory. Unlike ice thickness, satellite-derived sea ice concentration, lead frequency and snow thickness during winter months were close to the long-term mean with little variability. With the onset of spring and decreasing distance to the Fram Strait, variability in ice concentration and lead activity increased. In addition, the frequency and strength of deformation events (divergence, convergence and shear) were higher during summer than during winter. Overall, we find that sea ice conditions observed within 5 km distance of the CO are representative for the wider (50 and 100 km) surroundings. An exception is the ice thickness; here we find that sea ice within 50 km radius of the CO was thinner than sea ice within a 100 km radius by a small but consistent factor (4 %) for successive monthly averages. Moreover, satellite acquisitions indicate that the formation of large melt ponds began earlier on the MOSAiC floe than on neighbouring floes. Article in Journal/Newspaper Arctic Fram Strait Kara-Laptev laptev Laptev Sea Sea ice The Cryosphere Unknown Arctic Laptev Sea The Cryosphere 15 8 3897 3920 |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
envir geo |
spellingShingle |
envir geo T. Krumpen L. von Albedyll H. F. Goessling S. Hendricks B. Juhls G. Spreen S. Willmes H. J. Belter K. Dethloff C. Haas L. Kaleschke C. Katlein X. Tian-Kunze R. Ricker P. Rostosky J. Rückert S. Singha J. Sokolova MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years |
topic_facet |
envir geo |
description |
We combine satellite data products to provide a first and general overview of the physical sea ice conditions along the drift of the international Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition and a comparison with previous years (2005–2006 to 2018–2019). We find that the MOSAiC drift was around 20 % faster than the climatological mean drift, as a consequence of large-scale low-pressure anomalies prevailing around the Barents–Kara–Laptev sea region between January and March. In winter (October–April), satellite observations show that the sea ice in the vicinity of the Central Observatory (CO; 50 km radius) was rather thin compared to the previous years along the same trajectory. Unlike ice thickness, satellite-derived sea ice concentration, lead frequency and snow thickness during winter months were close to the long-term mean with little variability. With the onset of spring and decreasing distance to the Fram Strait, variability in ice concentration and lead activity increased. In addition, the frequency and strength of deformation events (divergence, convergence and shear) were higher during summer than during winter. Overall, we find that sea ice conditions observed within 5 km distance of the CO are representative for the wider (50 and 100 km) surroundings. An exception is the ice thickness; here we find that sea ice within 50 km radius of the CO was thinner than sea ice within a 100 km radius by a small but consistent factor (4 %) for successive monthly averages. Moreover, satellite acquisitions indicate that the formation of large melt ponds began earlier on the MOSAiC floe than on neighbouring floes. |
format |
Article in Journal/Newspaper |
author |
T. Krumpen L. von Albedyll H. F. Goessling S. Hendricks B. Juhls G. Spreen S. Willmes H. J. Belter K. Dethloff C. Haas L. Kaleschke C. Katlein X. Tian-Kunze R. Ricker P. Rostosky J. Rückert S. Singha J. Sokolova |
author_facet |
T. Krumpen L. von Albedyll H. F. Goessling S. Hendricks B. Juhls G. Spreen S. Willmes H. J. Belter K. Dethloff C. Haas L. Kaleschke C. Katlein X. Tian-Kunze R. Ricker P. Rostosky J. Rückert S. Singha J. Sokolova |
author_sort |
T. Krumpen |
title |
MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years |
title_short |
MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years |
title_full |
MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years |
title_fullStr |
MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years |
title_full_unstemmed |
MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years |
title_sort |
mosaic drift expedition from october 2019 to july 2020: sea ice conditions from space and comparison with previous years |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-3897-2021 https://tc.copernicus.org/articles/15/3897/2021/tc-15-3897-2021.pdf https://doaj.org/article/968cf815e89a40229c5894c30c70fe9b |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic Fram Strait Kara-Laptev laptev Laptev Sea Sea ice The Cryosphere |
genre_facet |
Arctic Fram Strait Kara-Laptev laptev Laptev Sea Sea ice The Cryosphere |
op_source |
The Cryosphere, Vol 15, Pp 3897-3920 (2021) |
op_relation |
doi:10.5194/tc-15-3897-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/3897/2021/tc-15-3897-2021.pdf https://doaj.org/article/968cf815e89a40229c5894c30c70fe9b |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-15-3897-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
8 |
container_start_page |
3897 |
op_container_end_page |
3920 |
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1766344322349793280 |