Alkalinity and major ions in the water column of the Gdańsk Basin (southern Baltic Sea) in summer 2023

Description

Total alkalinity and concentration of major ions (chloride, sulfate, sodium and calcium) was was analyzed in the water column of three stations located in the Gdańsk Basin (southern Baltic Sea). Samples were collected during a cruise aboard the RV Oceanograf (owned by the University of Gdańsk) from July 28 to July 31, 2023. Station depths were 52 m for MET2 and 82 m for MET1-MP and MET1-REF.

Steps to reproduce

Seawater samples were collected using a Niskin bottle rosette (SBE32 12 Position Carousel System from Sea-Bird Sci.). Total alkalinity was determined by potentiometric titration with 0.1 M HCl using an automatic titrator (SM-Titrino 702 Metrohm). Concentration of major ions (chloride, sulfate, Na+ and Ca2+) was were analysed using High Performance Ion Chromatography (Methrom 850 Professional IC).

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