Stable isotope compositions (δ¹³C and δ¹⁵N) of seston measured on water bottle samples from CTD/Large volume Water-sampler-system during POLARSTERN cruise PS100 (ARK-XXX/2)

• Main Authors: Graeve, Martin, Ludwichowski, Kai-Uwe, Müller, Sinah, Guillou, Gaël, Lebreton, Benoit
• Format: Dataset
• Language: English
• Published: PANGAEA 2019
• Subjects: ARK-XXX/2; GN05; AWI_PhyOce; Bottle number; Carbon/Nitrogen ratio; Cast number; CTD/Rosette; ultra clean; CTD-L; CTD Large; CTD-RO; CTD-UC; Date/Time of event; DEPTH; water; East Greenland; Elevation of event; Event label; Fram Strait; Latitude of event; Longitude of event; North Greenland Sea; Norwegian Sea; Physical Oceanography @ AWI; Polarstern; POM; PS100; PS100/002-2; PS100/015-5; PS100/019-2; PS100/028-4; PS100/035-1; PS100/037-4; PS100/042-2; PS100/044-4; PS100/046-1; PS100/049-1; PS100/052-4; PS100/055-1; PS100/056-5; PS100/058-1; PS100/060-1; PS100/066-1; PS100/072-1; PS100/079-1; PS100/082-2; PS100/086-1; PS100/090-2; PS100/094-2; Berichte zur Polar- und Meeresforschung; Greenland; Greenland Sea; North Greenland; Reports on Polar and Marine Research
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.902610; https://doi.org/10.1594/PANGAEA.902610

Seston samples collected with Niskin bottles; 2 L filtered onto precombusted 25mm (Ø) GF/F filters. δ¹³C and δ¹⁵N stable isotopes analyzed with elemental analyzer (Thermo Flash 2000) coupled to an isotope-ratio mass spectrometer (Thermo, Delta V Plus). Sample preparation for IRMS analysis (BSIA) were done according to the LIENSs SOPs. (see: https://lienss.univ-larochelle.fr/IMG/pdf/lienss_sif_appendix_2_protocols_v3-8.pdf) Devices (LIENSs Stable Isotope Facility, La Rochelle, France): Elemental analyzer: Flash 2000, Thermo Scientific, Milan, Italy. Isotope ratio mass spectrometer: Delta V Plus with a Conflo IV interface, Thermo Scientific, Bremen, Germany. Reference materials for calibration: δ¹³C: USGS-24, IAEA-CH6, IAEA-600, USGS-61, USGS-62. δ¹⁵N: IAEA-N2, IAEA-NO-3, IAEA-600, USGS-61, USGS-62. Working standards (two-point calibration): %C, %N, δ¹³C and δ¹⁵N: USGS-61 (Caffeine) and USGS-62 (Caffeine) Analytical precision: δ¹³C: <0.10 ‰ (Thermo Scientific specifications). δ¹⁵N: <0.10 ‰ (Thermo Scientific specifications). Results are expressed in the δ unit notation as deviations from standards (Vienna Pee Dee Belemnite for δ¹³C and N₂ in air for δ¹⁵N) following the formula: δ¹³C or δ¹⁵N = [(Rsample/Rstandard) - 1] x 10³, where R is ¹³C/¹²C or ¹⁵N/¹⁴N, respectively.