Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 NORCE Norwegian Research Centre AS NORCE https://www.norceresearch.no https://ror.org/02gagpf75 Vollmar Nele Manon nevo@norceresearch.no 0000-0003-4180-3443 NORCE Norwegian Research Centre AS NORCE https://www.norceresearch.no https://ror.org/02gagpf75 Cordier Tristan trco@norceresearch.no 0000-0001-7398-4790 NORCE Norwegian Research Centre AS NORCE https://www.norceresearch.no https://ror.org/02gagpf75 Weiner Agnes K M agwe@norceresearch.no 0000-0002-9917-5235 NORCE Norwegian Research Centre AS NORCE https://www.norceresearch.no https://ror.org/02gagpf75 Müller Juliane juliane.mueller@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/juliane-mueller.html 0000-0003-0724-4131 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 De Schepper Stijn stde@norceresearch.no 0000-0002-6934-0914 NORCE Norwegian Research Centre AS NORCE https://www.norceresearch.no https://ror.org/02gagpf75 2026 Radiocarbon dates from Yermak Plateau sediment core KH21-234-34GC1 dataset https://doi.org/10.1594/PANGAEA.989273 2026-01-30T13:39:45 Radiocarbon dates were determined by picking shells of Neogloboquadrina pachyderma at four depths from marine sediment core KH21-234-34GC collected from the Yermak Plateu (81.2199280 ˚N, 2.3710955˚E ) with a gravity corer at 1011m water depth during cruise KH21-234. Accelerator mass spectrometry (AMS) 14C dates from the radiocarbon lab at ETH Zurich, and calibrated ages were calculated used the functions BchronCalibrate:sampleAges and Bchronology:PredictAges from the statistical package BChron (version 4.7.7). Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Vollmar Nele Manon nevo@norceresearch.no 0000-0003-4180-3443 Cordier Tristan trco@norceresearch.no 0000-0001-7398-4790 Weiner Agnes K M agwe@norceresearch.no 0000-0002-9917-5235 Müller Juliane juliane.mueller@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/juliane-mueller.html 0000-0003-0724-4131 Larsen Aud Aud.Larsen@uib.no 0000-0001-6927-5537 De Schepper Stijn stde@norceresearch.no 0000-0002-6934-0914 2026 First-year sea ice history in the Arctic Ocean inferred from ancient DNA of Polerella glacialis over the past 50,000 years journal article Earth and Planetary Science Letters 678 https://doi.org/10.1016/j.epsl.2025.119809 119809 2.371095542 2.371095542 81.21992801 81.21992801 2.371095542 81.21992801 2021-07-07T14:42:29 2021-07-07T14:42:29 0.69 4.54 European Research Council ERC https://doi.org/10.13039/501100000781 101118519 Into the Blue - Resolving past Arctic greenhouse climate (i2B) doi:10.3030/101118519 Horizon 2020 H2020 https://ec.europa.eu/programmes/horizon2020/ https://doi.org/10.13039/501100007601 818449 Genetic information for Arctic sea ice study doi:10.3030/818449 KH21-234-34GC 81.21992801 2.371095542 -1011.0 2021-07-07T14:42:29 466 cm KH21-234 https://hdl.handle.net/11250/3022675 De Schepper, Stijn Larsen, Aud 2021-06-30 2021-07-11 Longyearbyen, Svalbard and Jan Mayen Longyearbyen, Svalbard and Jan Mayen Kronprins Haakon https://npolar.no/en/kronprins-haakon/ 3YYQ 9739587 Gravity corer GC 36 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Site Site site Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Site DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Depth sed [m] Age, dated Age dated ka age http://purl.obolibrary.org/obo/PATO_0000011 Time T http://dbpedia.org/resource/Time Age, 14C AMS https://doi.org/10.1146/annurev.ns.30.120180.002253 accelerator mass spectrometers http://vocab.nerc.ac.uk/collection/L05/current/LAB17/ Chromatographs & spectrometers Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 14C AMS Age dated [ka] Age, dated, error Age dated e ± age http://purl.obolibrary.org/obo/PATO_0000011 Age, 14C AMS https://doi.org/10.1146/annurev.ns.30.120180.002253 accelerator mass spectrometers http://vocab.nerc.ac.uk/collection/L05/current/LAB17/ Chromatographs & spectrometers Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Age dated e [±] Laboratory code/label Lab label label http://purl.obolibrary.org/obo/CHEBI_35209 Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Sample ID Lab label Reference/source Reference Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Reference Calibration Calibration Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Calibration curve Calibration Calendar age, minimum/young Cal age min ka BP minimum young http://purl.obolibrary.org/obo/PATO_0000309 Time T http://dbpedia.org/resource/Time Age, 14C calibrated Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 2.5% Cal age min [ka BP] Calendar age Cal age ka BP Time T http://dbpedia.org/resource/Time Age, 14C calibrated Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 Cal age [ka BP] Calendar age, maximum/old Cal age max ka BP maximum old http://purl.obolibrary.org/obo/PATO_0000308 Time T http://dbpedia.org/resource/Time Age, 14C calibrated Mayers Kyle M J kyma@norceresearch.no 0000-0001-9595-8702 97.5% Cal age max [ka BP] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Arctic Dinoflagellate gene copy number Magnetic susceptibility Radiocarbon Sea ice author31802 author34456 author35356 author45616 author64848 author74977 author78174 award2013 award4582 basis5396 campaign53157 curlevel30 event3341458 funder20475 funder20666 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst20696 inst32 journal4644 license21 method11107 method415 method58 param132179 param143777 param143779 param14698 param48491 param533732 param5506 param6857 param88337 pi64848 ref137373 term1073131 term1073135 term1073499 term1073892 term1081569 term2299417 term37810 term38263 term38492 term40892 term41019 term41056 term43863 term43975 term47389 term50622 term68027 term69726 term732 term818