Dissolved inorganic carbon and total alkalinity of seawater samples from the Weddell Sea for RV POLARSTERN expedition PS117 ...

• Main Authors: Droste, Elise Sayana, Bakker, Dorothee C E, Hoppema, Mario, Ossebaar, Sharyn, Boebel, Olaf, Rohardt, Gerd, Middag, Rob, Ober, Sven
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: PS117; Event label; DATE/TIME; LATITUDE; LONGITUDE; DEPTH, water; Station label; Cast number; Bottle number; Pressure, water; Salinity; Temperature, water; Phosphate; Silicate; Nitrate; Carbon, inorganic, dissolved; Quality flag, carbon, inorganic, dissolved; Alkalinity, total; Quality flag, alkalinity, total; Comment; CTD/Rosette; CTD/Rosette, ultra clean; Surface and under ice trawl; Spectrophotometry; Coulometric titration; World Oceans Circulation Experiment WOCE quality flags according to Jiang et al. 2022; Potentiometric titration; Polarstern; Weddell Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.962722; https://doi.pangaea.de/10.1594/PANGAEA.962722

Discrete seawater samples for the determination of dissolved inorganic carbon (DIC) and total alkalinity (TA) were collected from CTD stations during RV POLARSTERN expedition PS117, between 15 December 2018 and 7 February 2019. Seawater samples were collected from stations that used the AWI-operated CTD, as well as the Ultra-Clean-CTD, operated by NIOZ. DIC and TA were measured using coulometric titration and potentiometric titration, respectively, on a VINDTA 3C system. Nutrients were measured with UV-Vis spectrophotometry and a continuous gas-segmented flow auto-analyser. Data for station 41 have previously been published on Pangaea and are excluded from this dataset (https://doi.org/10.1594/PANGAEA.946363). Bottle data (including nutrients) from the AWI CTD and Ultra-Clean-CTD stations have already been published and are stored on Pangaea under https://doi.org/10.1594/PANGAEA.910673 and https://doi.org/10.1594/PANGAEA.940209, respectively. Data quality flags follow the WOCE quality code definitions for ...