PANGAEA_993224 Particulate combined carbohydrates in sea-ice cores from the MOSAiC expedition in the Central Arctic Ocean Zeppenfeld, Sebastian; Ramezankhah, Bahareh; van Pinxteren, Manuela; Herrmann, Hartmut; Fong, Allison A; Hoppe, Clara Jule Marie Particulate combined carbohydrates in sea-ice cores from the MOSAiC expedition in the Central Arctic Ocean 2026-05-11 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993224 Investigator Sebastian Zeppenfeld zeppenfeld@tropos.de Earth Science Event label LATITUDE LONGITUDE Sample type DATE/TIME Core section, comment DEPTH, ice/snow Fucose Galactosamine Rhamnose Arabinose Glucosamine Galactose Glucose Xylose Mannose Muramic acid Galacturonic acid Glucuronic acid Mannuronic acid Carbohydrates, particulate combined geoscientificInformation Arctic combined carbohydrates Ice corer ice cores PS122 PS122/1 PS122/1_10-16 PS122/2 PS122/2_21-13 PS122/2_22-7 PS122/3 PS122/3_33-18 PS122/3_35-11 PS122/3_36-21 PS122/4 PS122/4_44-134 PS122/4_45-29 PS122/4_46-18 PS122/4_46-20 PS122/4_48-23 PS122/4_48-25 PS122/4_49-34 PS122/5 PS122/5_60-3 PS122/5_61-6 Sea ice High performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD) Polarstern 2019-12-02 2020-09-07 Complete 79.176727 88.7224197387695 -2.611045 113.82160949707 0.0 m (DEPTH, ice/snow) 2.22375 m (DEPTH, ice/snow) AC3 Arctic Amplification MOSAiC Multidisciplinary drifting Observatory for the Study of Arctic Climate unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 4224 data points text/tab-separated-values Hoppe, Clara Jule Marie; et al. (in prep.): Phytoplankton overwintering strategies in the central Arctic Ocean. Zeppenfeld, Sebastian; van Pinxteren, Manuela; Engel, Anja; Herrmann, Hartmut (2020): A protocol for quantifying mono- and polysaccharides in seawater and related saline matrices by electro-dialysis (ED) - combined with HPAEC-PAD. Ocean Science, 16(4), 817-830, https://doi.org/10.5194/os-16-817-2020

First-year and second-year sea-ice samples were collected during the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate, PS122) expedition in the central Arctic Ocean. Ice cores were retrieved using a Mark II ice coring system (Kovacs Enterprises, Inc., Indianapolis, USA). The cores were segmented at 10-cm intervals, and the sections were pooled by depth layer and melted in filtered seawater. Particulate combined carbohydrate (PCCHO) concentrations were determined from particulate material retained on 0.2 µm polycarbonate membrane filters. After acid hydrolysis, samples were analyzed using high-performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD), following Zeppenfeld et al. (2020). All concentrations were corrected for the dilution factor resulting from melting the ice sections with filtered seawater. PCCHO concentrations were quantified as the sum of their constituent monosaccharides, including arabinose, glucose, galactose, glucosamine, galactosamine, muramic acid, galacturonic acid, and others. We thank all Polarstern scientists and crew involved in seawater sampling during MOSAiC, with special thanks to the scientists of the ECO team. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993224"! ** 0.000 values stand for <LOD

http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.org/10.17815/jlsrf-3-163 Polarstern https://doi.org/10.5194/os-16-817-2020 A protocol for quantifying mono- and polysaccharides in seawater and related saline matrices by electro-dialysis (ED) - combined with HPAEC-PAD https://gepris.dfg.de/gepris/projekt/268020496 AC3 https://mosaic-expedition.org/ MOSAiC DIF 9.4 2026-05-11 2026-05-11