Sediment characteristics (Chla, Phaeo, TOC, TN, δ13C, δ15N, grain size) at four stations in the Weddell Sea (POLARSTERN cruise PS118, February - April 2019) ...

• Main Authors: Weith, Friederike, Veit-Köhler, Gritta, Behrend, Ben, Witte, Ursula, Liskow, Iris, Link, Heike
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Antarctic; Chlorophyll a; Grain Size; MultiCorer; organic matter; phaeopigments; pigments; sediment; Southern Ocean; stable carbon isotopes; total nitrogen TN; total organic carbon TOC; Weddell Sea; Event label; Date/Time of event; Latitude of event; Longitude of event; Elevation of event; Cruise/expedition; Station label; Operation number; Core; Gear; DEPTH, sediment/rock; Depth, top/min; Depth, bottom/max; Chlorophyll a per unit sediment mass; Phaeopigments per unit sediment mass; Carbon, organic, total; Nitrogen, total; δ13C, total organic carbon; δ15N, bulk sediment; Size fraction < 0.063 mm, mud, silt+clay; Size fraction 0.125-0.063 mm, 3.0-4.0 phi, very fine sand; Size fraction 0.250-0.125 mm, 2.0-3.0 phi, fine sand; Size fraction 0.500-0.250 mm, 1.0-2.0 phi, medium sand; Size fraction 1.000-0.500 mm, 0.0-1.0 phi, coarse sand; Size fraction > 1 mm, gravel; Fluorometry; Flash combustion in a Flash 2000 Thermo elemental analyzer; Grain size, Mastersizer 3000, Malvern Instrument Inc.; PS118; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Arctic; Weddell; Antarc*; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.960326; https://doi.pangaea.de/10.1594/PANGAEA.960326

This dataset contains abiotic and biotic data from sediment samples from four sites in the northwestern Weddell Sea. Data are provided for sediment pigments (chlorophyll a and phaeopigment content through fluorometry), total organic carbon (TOC), total nitrogen (TN), stable isotope values of carbon and nitrogen (δ13C, δ15N) and grain size (silt&clay < 32 µm, very fine sand 63–125 µm, fine sand 125–250 µm, medium sand 250–500 µm, coarse sand 500–1000 µm, larger coarse sand > 1000 µm). A minimum of three replicate samples (cores) were collected using a MUC10 multicorer. All sediment cores were subsampled with a 10-ml syringe (inner diameter 1 cm). Subsamples were sliced in 1-cm steps down to 5 cm depth. The same sampling and measurements as for PS 96 were carried out (see below "Related to". Prior to TOC and δ13C analysis sediment samples were acidified to eliminate inorganic carbon. Detailed methods are described in Säring et al. (2022), except for stable isotopes: Flash combustion in a Flash 2000 ...