https://doi.pangaea.de/10.1594/PANGAEA.993224Zeppenfeld, SebastianSebastianZeppenfeld0000-0003-4622-3181Leibniz-Institut für Troposphärenforschung e.V., LeipzigRamezankhah, BaharehBaharehRamezankhahLeibniz-Institut für Troposphärenforschung e.V., Leipzigvan Pinxteren, ManuelaManuelavan Pinxteren0000-0002-8746-8620Leibniz-Institut für Troposphärenforschung e.V., LeipzigHerrmann, HartmutHartmutHerrmann0000-0001-7044-2101Leibniz-Institut für Troposphärenforschung e.V., LeipzigFong, Allison AAllison AFong0000-0002-3779-9624Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenHoppe, Clara Jule MarieClara Jule MarieHoppe0000-0002-2509-0546Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenPANGAEA2026Arcticcombined carbohydratesice coresPS122Sea iceEvent labelLATITUDELONGITUDESample typeDATE/TIMECore section, commentDEPTH, ice/snowFucoseGalactosamineRhamnoseArabinoseGlucosamineGalactoseGlucoseXyloseMannoseMuramic acidGalacturonic acidGlucuronic acidMannuronic acidCarbohydrates, particulate combinedIce corerHigh performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD)PS122/1PS122/2PS122/3PS122/4PS122/5PolarsternArctic Amplification (AC3)Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)2019-12-02T05:52:00/2020-09-07T09:47:00Dataset10.5194/os-16-817-20204224 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalFirst-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.0.000 values stand for <LOD-2.611045113.8216094970779.17672788.7224197387695Arctic OceanAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhavenhttps://doi.org/10.13039/501100003207AFMOSAiC-1_00Multidisciplinary drifting Observatory for the Study of Arctic ClimateAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhavenhttps://doi.org/10.13039/501100003207AWI_PS122_00Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiCGerman Research Foundationhttps://doi.org/10.13039/501100001659268020496TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms