Spatial variability of the marine CO2 system and inorganic nutrients in the water column along the Vardø-North section in the Barents Sea to the Nansen Basin, Arctic Ocean in September 2012 ...

• Main Author: Chierici, Melissa
• Format: Dataset
• Language: unknown
• Published: Institute of Marine Research 2022
• Subjects: Arctic; Arctic Ocean; Barents Sea; Norway; Tromsø; Vardø; Nansen Basin
• Online Access: https://dx.doi.org/10.21335/nmdc-1341949456; http://metadata.nmdc.no/metadata-api/landingpage/34be499cc0c6b9cc8162a8f1bf66570e

Marine CO2 system data (total alkalinity (AT), and total dissolved inorganic carbon, CT) and nutrients such as nitrate+nitrite (NO3), phosphate (PO4) and silicic acid (Si(OH)4) were collected from the water column as part of the IMR repeat Vardø-N section (Barents Sea) and the A-TWAIN research program for the adjacent Nansen Basin, Arctic Ocean. Sampling were performed on two cruises in September 2012 on board the RV Johan Hjort (cruise #2012209) and RV Lance. The seawater samples were collected from a CTD-Rosette (12-Niskin bottle) following standard procedures and analyzed at Institute of Marine Research, Tromsø, Norway after the cruises following the method described in Dickson et al. (2007). DIC was determined using gas extraction of acidified samples followed by coulometric titration and photometric detection using a Versatile Instrument for the Determination of Titration carbonate (VINDTA 3D, Marianda, Germany). AT was determined by potentiometric titration with 0.1 N hydrochloric acid using a ...