Zeppenfeld, Sebastian; Ramezankhah, Bahareh; van Pinxteren, Manuela; Herrmann, Hartmut; Fong, Allison A; Hoppe, Clara Jule Marie (2026): Particulate combined carbohydrates in sea-ice cores from the MOSAiC expedition in the Central Arctic Ocean [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993224 (DOI registration in progress)
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Published: 2026-05-11
Abstract:
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.
Related to:
Hoppe, Clara Jule Marie; et al. (in prep.): Phytoplankton overwintering strategies in the central Arctic Ocean.
References:
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
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 83.872168 * Median Longitude: 35.834059 * South-bound Latitude: 79.176727 * West-bound Longitude: -2.611045 * North-bound Latitude: 88.722420 * East-bound Longitude: 113.821609
Date/Time Start: 2019-12-02T05:52:00 * Date/Time End: 2020-09-07T09:47:00
Minimum DEPTH, ice/snow: 0.00 m * Maximum DEPTH, ice/snow: 2.22 m
Event(s):
PS122/1_10-16 * Latitude: 85.929355 * Longitude: 113.531791 * Date/Time: 2019-12-02T05:52:00 * Elevation: -4420.4 m * O2A Registry URI: https://registry.o2a-data.de/items/5065 * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: temp: temp20191202; ch4: ch420191202; salo: SALO20191202; HALO: HALO20191202; ECO1: ECO1_20191202; SIO: SIO_20191202; ECO1B : ECO1B; ECO1C: ECO1C20191202; ECO1D: ECO1D_20191202; BAC: BAC_20191202; ECO2A: ECO2A_20191202; ECO2B: ECO2B_20191202; ECO2C: ECO2C_20191202; MEIO1: MEIO1_20191202; DIC: DIC_20191202; PLT: PLT_20191202; Tex: Tex_20191202; REP: REP_20191202
PS122/2_21-13 * Latitude: 87.449853 * Longitude: 97.313257 * Date/Time: 2020-01-20T07:44:00 * O2A Registry URI: https://registry.o2a-data.de/items/5065 * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: temp: temp; ch4: ch4; salo18: salo18; halo: halo; iso: iso; eco1a: eco1a; bromo: bromo; eco1b: eco1b; tex: tex; eco1c: eco1c; dic: dic; bac: backup core; eco1d: eco1d; rep: rep; eco2a: eco2a; eco2b: eco2b; gypsum: gypsum; eco2c: eco2c; meio1: meio1; methox: methox
PS122/2_22-7 * Latitude: 87.452347 * Longitude: 95.348209 * Date/Time: 2020-01-27T07:54:00 * O2A Registry URI: https://registry.o2a-data.de/items/5065 * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: T: DS syi temp core; ch4: ds syi ch4 core; halo: halo core ds syi; salo18: salinity core ds syi; iso: iso core ds syi; bromoj: bromo core ds syi; bromo: bromo core syi ds; chla eco1a: eco1a core ds syi; PROD eco1b: eco1b core ds syi; PIGS eco1c: eco1c ds syi core; algae eco 1d: eco1d ds syi ; tex: tex core ds syi; dna1 eco2a: eco2a core ds syi; dic: dic/ta dic core ds syi; dna2 eco2b: eco2b core ds syi; rep: rep core ds syi; rna eco2c: eco 2c core ds syi; backup bac: backup core ds syi; plastic plt: plastic core ds syi; rho: rho core ds syi
Comment:
0.000 values stand for <LOD
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
4224 data points
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