The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf
In September 2019, the research icebreaker Polarstern started the largest multidisciplinary Arctic expedition to date, the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) drift experiment. Being moored to an ice floe for a whole year, thus including the winter season,...
Published in: | The Cryosphere |
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Copernicus Publications
2020
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article Verlagsveröffentlichung Krumpen, Thomas Birrien, Florent Kauker, Frank Rackow, Thomas von Albedyll, Luisa Angelopoulos, Michael Belter, H. Jakob Bessonov, Vladimir Damm, Ellen Dethloff, Klaus Haapala, Jari Haas, Christian Harris, Carolynn Hendricks, Stefan Hoelemann, Jens Hoppmann, Mario Kaleschke, Lars Karcher, Michael Kolabutin, Nikolai Lei, Ruibo Lenz, Josefine Morgenstern, Anne Nicolaus, Marcel Nixdorf, Uwe Petrovsky, Tomash Rabe, Benjamin Rabenstein, Lasse Rex, Markus Ricker, Robert Rohde, Jan Shimanchuk, Egor Singha, Suman Smolyanitsky, Vasily Sokolov, Vladimir Stanton, Tim Timofeeva, Anna Tsamados, Michel Watkins, Daniel The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf |
topic_facet |
article Verlagsveröffentlichung |
description |
In September 2019, the research icebreaker Polarstern started the largest multidisciplinary Arctic expedition to date, the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) drift experiment. Being moored to an ice floe for a whole year, thus including the winter season, the declared goal of the expedition is to better understand and quantify relevant processes within the atmosphere–ice–ocean system that impact the sea ice mass and energy budget, ultimately leading to much improved climate models. Satellite observations, atmospheric reanalysis data, and readings from a nearby meteorological station indicate that the interplay of high ice export in late winter and exceptionally high air temperatures resulted in the longest ice-free summer period since reliable instrumental records began. We show, using a Lagrangian tracking tool and a thermodynamic sea ice model, that the MOSAiC floe carrying the Central Observatory (CO) formed in a polynya event north of the New Siberian Islands at the beginning of December 2018. The results further indicate that sea ice in the vicinity of the CO (<40 km distance) was younger and 36 % thinner than the surrounding ice with potential consequences for ice dynamics and momentum and heat transfer between ocean and atmosphere. Sea ice surveys carried out on various reference floes in autumn 2019 verify this gradient in ice thickness, and sediments discovered in ice cores (so-called dirty sea ice) around the CO confirm contact with shallow waters in an early phase of growth, consistent with the tracking analysis. Since less and less ice from the Siberian shelves survives its first summer (Krumpen et al., 2019), the MOSAiC experiment provides the unique opportunity to study the role of sea ice as a transport medium for gases, macronutrients, iron, organic matter, sediments and pollutants from shelf areas to the central Arctic Ocean and beyond. Compared to data for the past 26 years, the sea ice encountered at the end of September 2019 can already be classified as exceptionally thin, and further predicted changes towards a seasonally ice-free ocean will likely cut off the long-range transport of ice-rafted materials by the Transpolar Drift in the future. A reduced long-range transport of sea ice would have strong implications for the redistribution of biogeochemical matter in the central Arctic Ocean, with consequences for the balance of climate-relevant trace gases, primary production and biodiversity in the Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Krumpen, Thomas Birrien, Florent Kauker, Frank Rackow, Thomas von Albedyll, Luisa Angelopoulos, Michael Belter, H. Jakob Bessonov, Vladimir Damm, Ellen Dethloff, Klaus Haapala, Jari Haas, Christian Harris, Carolynn Hendricks, Stefan Hoelemann, Jens Hoppmann, Mario Kaleschke, Lars Karcher, Michael Kolabutin, Nikolai Lei, Ruibo Lenz, Josefine Morgenstern, Anne Nicolaus, Marcel Nixdorf, Uwe Petrovsky, Tomash Rabe, Benjamin Rabenstein, Lasse Rex, Markus Ricker, Robert Rohde, Jan Shimanchuk, Egor Singha, Suman Smolyanitsky, Vasily Sokolov, Vladimir Stanton, Tim Timofeeva, Anna Tsamados, Michel Watkins, Daniel |
author_facet |
Krumpen, Thomas Birrien, Florent Kauker, Frank Rackow, Thomas von Albedyll, Luisa Angelopoulos, Michael Belter, H. Jakob Bessonov, Vladimir Damm, Ellen Dethloff, Klaus Haapala, Jari Haas, Christian Harris, Carolynn Hendricks, Stefan Hoelemann, Jens Hoppmann, Mario Kaleschke, Lars Karcher, Michael Kolabutin, Nikolai Lei, Ruibo Lenz, Josefine Morgenstern, Anne Nicolaus, Marcel Nixdorf, Uwe Petrovsky, Tomash Rabe, Benjamin Rabenstein, Lasse Rex, Markus Ricker, Robert Rohde, Jan Shimanchuk, Egor Singha, Suman Smolyanitsky, Vasily Sokolov, Vladimir Stanton, Tim Timofeeva, Anna Tsamados, Michel Watkins, Daniel |
author_sort |
Krumpen, Thomas |
title |
The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf |
title_short |
The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf |
title_full |
The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf |
title_fullStr |
The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf |
title_full_unstemmed |
The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf |
title_sort |
mosaic ice floe: sediment-laden survivor from the siberian shelf |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/tc-14-2173-2020 https://noa.gwlb.de/receive/cop_mods_00052112 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00051766/tc-14-2173-2020.pdf https://tc.copernicus.org/articles/14/2173/2020/tc-14-2173-2020.pdf |
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ENVELOPE(142.000,142.000,75.000,75.000) |
geographic |
Arctic Arctic Ocean New Siberian Islands |
geographic_facet |
Arctic Arctic Ocean New Siberian Islands |
genre |
Arctic Arctic Ocean New Siberian Islands Sea ice The Cryosphere |
genre_facet |
Arctic Arctic Ocean New Siberian Islands Sea ice The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-2173-2020 https://noa.gwlb.de/receive/cop_mods_00052112 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00051766/tc-14-2173-2020.pdf https://tc.copernicus.org/articles/14/2173/2020/tc-14-2173-2020.pdf |
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https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-14-2173-2020 |
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The Cryosphere |
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14 |
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2187 |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00052112 2023-05-15T14:53:44+02:00 The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf Krumpen, Thomas Birrien, Florent Kauker, Frank Rackow, Thomas von Albedyll, Luisa Angelopoulos, Michael Belter, H. Jakob Bessonov, Vladimir Damm, Ellen Dethloff, Klaus Haapala, Jari Haas, Christian Harris, Carolynn Hendricks, Stefan Hoelemann, Jens Hoppmann, Mario Kaleschke, Lars Karcher, Michael Kolabutin, Nikolai Lei, Ruibo Lenz, Josefine Morgenstern, Anne Nicolaus, Marcel Nixdorf, Uwe Petrovsky, Tomash Rabe, Benjamin Rabenstein, Lasse Rex, Markus Ricker, Robert Rohde, Jan Shimanchuk, Egor Singha, Suman Smolyanitsky, Vasily Sokolov, Vladimir Stanton, Tim Timofeeva, Anna Tsamados, Michel Watkins, Daniel 2020-07 electronic https://doi.org/10.5194/tc-14-2173-2020 https://noa.gwlb.de/receive/cop_mods_00052112 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00051766/tc-14-2173-2020.pdf https://tc.copernicus.org/articles/14/2173/2020/tc-14-2173-2020.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-2173-2020 https://noa.gwlb.de/receive/cop_mods_00052112 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00051766/tc-14-2173-2020.pdf https://tc.copernicus.org/articles/14/2173/2020/tc-14-2173-2020.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2020 ftnonlinearchiv https://doi.org/10.5194/tc-14-2173-2020 2022-02-08T22:36:08Z In September 2019, the research icebreaker Polarstern started the largest multidisciplinary Arctic expedition to date, the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) drift experiment. Being moored to an ice floe for a whole year, thus including the winter season, the declared goal of the expedition is to better understand and quantify relevant processes within the atmosphere–ice–ocean system that impact the sea ice mass and energy budget, ultimately leading to much improved climate models. Satellite observations, atmospheric reanalysis data, and readings from a nearby meteorological station indicate that the interplay of high ice export in late winter and exceptionally high air temperatures resulted in the longest ice-free summer period since reliable instrumental records began. We show, using a Lagrangian tracking tool and a thermodynamic sea ice model, that the MOSAiC floe carrying the Central Observatory (CO) formed in a polynya event north of the New Siberian Islands at the beginning of December 2018. The results further indicate that sea ice in the vicinity of the CO (<40 km distance) was younger and 36 % thinner than the surrounding ice with potential consequences for ice dynamics and momentum and heat transfer between ocean and atmosphere. Sea ice surveys carried out on various reference floes in autumn 2019 verify this gradient in ice thickness, and sediments discovered in ice cores (so-called dirty sea ice) around the CO confirm contact with shallow waters in an early phase of growth, consistent with the tracking analysis. Since less and less ice from the Siberian shelves survives its first summer (Krumpen et al., 2019), the MOSAiC experiment provides the unique opportunity to study the role of sea ice as a transport medium for gases, macronutrients, iron, organic matter, sediments and pollutants from shelf areas to the central Arctic Ocean and beyond. Compared to data for the past 26 years, the sea ice encountered at the end of September 2019 can already be classified as exceptionally thin, and further predicted changes towards a seasonally ice-free ocean will likely cut off the long-range transport of ice-rafted materials by the Transpolar Drift in the future. A reduced long-range transport of sea ice would have strong implications for the redistribution of biogeochemical matter in the central Arctic Ocean, with consequences for the balance of climate-relevant trace gases, primary production and biodiversity in the Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean New Siberian Islands Sea ice The Cryosphere Niedersächsisches Online-Archiv NOA Arctic Arctic Ocean New Siberian Islands ENVELOPE(142.000,142.000,75.000,75.000) The Cryosphere 14 7 2173 2187 |