Transient tracers (CFC-12 and SF6), noble gases (He and Ne isotopes), and Tritium measurements from POLARSTERN cruise PS122 (MOSAiC, 2019-2020) ...

• Main Authors: Huhn, Oliver, Heuzé, Céline, Walter, Maren, Mertens, Christian, Bulsiewicz, Klaus, Sültenfuß, Jürgen
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Arctic; CFC12; Helium; MOSAiC expedition; MOSAIC_PO; NEON; Polarstern; SF6; tracer; tritium; Event label; Date/Time of event; Latitude of event; Longitude of event; Elevation of event; Identification; Bottle number; Pressure, water; DEPTH, water; Freon-12 dichlorodifluoromethane; Quality flag; Sulfur hexafluoride, SF6; Helium-4; δ Helium-3; Neon; Tritium; CTD/Rosette; Gas chromatographic GC separation on a capillary column, electron capture detection ECD; World Oceans Circulation Experiment WOCE quality flags according to Jiang et al. 2022; Ultra high vacuum UHV mass spectrometry; PS122/1; PS122/2; PS122/3; PS122/4; PS122/5; Arctic Amplification AC3; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Fram Strait; laptev; Laptev Sea; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.961729; https://doi.pangaea.de/10.1594/PANGAEA.961729

We present a data set of oceanic trace gases collected during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC, PS122) expedition, during which the R/V Polarstern drifted along with the Arctic sea ice from the Laptev Sea to Fram Strait, from October 2019 to September 2020. During the expedition, trace gases from anthropogenic origin chlorofluorocarbon 12 (CFC-12), sulfur hexafluoride (SF6), and tritium, along with noble gases helium and neon and their isotopes were collected at a weekly or higher temporal resolution throughout the entire water column and occasionally in the snow, from the ship and from the ice. This trace gases data set can be used for process studies and water mass tracing throughout the Arctic in subsequent analysis.Transient tracers (CFC-12, SF6)The CFC-12 and SF6 water samples from the CTD-bottle systems were stored in ~220 ml glass ampoules by avoiding contact to the atmosphere during the tapping by a dedicated tubing and rinsing procedure. After ... : The tracer data set was carefully checked for accurate measurements and outliers. According to the WOCE standards the following flags were applied to each measurement:flag 2 = goodflag 3 = doubtfulflag 4 = badflag 6 = mean of replicatesflag 9 = no measurement (then, the data value is missing) ...