The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf

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dc.contributor.authorKrumpen, Thomas
dc.contributor.authorBirrien, Florent
dc.contributor.authorKauker, Frank
dc.contributor.authorRackow, Thomas
dc.contributor.authorAlbedy, Luisa von, II
dc.contributor.authorAngelopoulos, Michael
dc.contributor.authorBessonov, Vladimir
dc.contributor.authorDamm, Ellen
dc.contributor.authorDethloff, Klaus
dc.contributor.authorHaapala, Jari
dc.contributor.authorHaas, Christian
dc.contributor.authorBelter, H. Jakob
dc.contributor.authorHarris, Carolynn
dc.contributor.authorHendricks, Stefan
dc.contributor.authorHoelemann, Jens
dc.contributor.authorHoppmann, Mario
dc.contributor.authorKaleschke, Lars
dc.contributor.authorKarcher, Michael
dc.contributor.authorKolabutin, Nikolai
dc.contributor.authorLei, Ruibo
dc.contributor.authorLenz, Josefine
dc.contributor.authorMorgenstern, Anne
dc.contributor.authorNicolaus, Marcel
dc.contributor.authorNixdorf., Uwe
dc.contributor.authorPetrovsky, Tomash
dc.contributor.authorRabe, Benjamin
dc.contributor.authorRabenstein, Lasse
dc.contributor.authorRex, Markus
dc.contributor.authorRicker, Robert
dc.contributor.authorRohde, Jan
dc.contributor.authorShimanchuk, Egor
dc.contributor.authorSingha, Suman
dc.contributor.authorSmolyanitsky, Vasily
dc.contributor.authorSokolov, Vladimir
dc.contributor.authorStanton, Tim
dc.contributor.authorTimofeeva, Anna
dc.contributor.authorTsamados, Michel
dc.contributor.authorWatkins, Daniel
dc.contributor.departmentOceanography (OC)
dc.date6 July 2020
dc.date.accessioned2022-10-04T20:46:57Z
dc.date.available2022-10-04T20:46:57Z
dc.date.issued2020-07-06
dc.descriptionThe article of record as published may be found at https://doi.org/10.5194/tc-14-2173-2020en_US
dc.description.abstractIn September 2019, the research icebreaker Po larstern 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 cli mate 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
dc.description.funder(grant no. 03F0777A), (63A0028B)en_US
dc.description.funder(grant no. AO OCE3562)en_US
dc.description.funder(grant no. 640161)en_US
dc.description.fundergrant no. AO/1-6772/11/I-AM)en_US
dc.description.sponsorshipGerman Ministry for Education and Researchen_US
dc.description.sponsorshipGerman Aerospace Centeren_US
dc.description.sponsorshipGerman Minsitry for Education and Research (MOSAiC20192020)en_US
dc.description.sponsorshipEU H2020en_US
dc.description.sponsorshipEuropean Space Agencyen_US
dc.format.extent15 p.en_US
dc.identifier.citationKrumpen, Thomas, et al. "The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf." The Cryosphere 14.7 (2020): 2173-2187.en_US
dc.identifier.urihttps://hdl.handle.net/10945/70913
dc.publisherCopernicus Publications
dc.titleThe MOSAiC ice floe: sediment-laden survivor from the Siberian shelfen_US
dc.typeArticleen_US
dspace.entity.typePublication
relation.isDepartmentOfPublication26f8a402-a71f-4404-879b-8121771ae440
relation.isDepartmentOfPublication.latestForDiscovery26f8a402-a71f-4404-879b-8121771ae440
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