Nutrients, oxygen, total alkalinity, pH, and physical oceanography measured on water bottle samples during Akademik Tryoshnikov cruise Arctic Century 2021 Expedition (AT21), Arctic Ocean ...

• Main Authors: Gangnus, Ivan, Makhotin, Mikhail, Cherniavskaia, Ekaterina, Hölemann, Jens A, Kusse-Tiuz, Nikita, Lavinen, Natalia, Malinovskiy, Stanislav, Merkulov, Viktor, Ruiz-Castillo, Eugenio, Viazigina, Natalia, Kassens, Heidemarie
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Arctic Ocean; Kara Sea; Laptev Sea; nutrients; physical oceanography; shelf-basin transects; St. Anna Trough; Event label; Station label; Date/Time of event; Latitude of event; Longitude of event; Elevation of event; Pressure, water; DEPTH, water; Temperature, water; Conductivity; Salinity; Fluorescence, chlorophyll; Bottle number; Sample code/label; Oxygen, dissolved; pH; Alkalinity, total; Phosphate; Silicate; Nitrate; Nitrite; Ammonium; CTD/Rosette; CTD, Sea-Bird SBE 911plus; Calculated; Fluorometer, WET Labs ECO AFL/FL; Titration, Winkler; Potentiometric titration, Metrohm 916 TiTouch; Segmented flow analyzer, Seal Analytical; Spectrophotometer Shimadzu UV-1800; ArcticCentury; Akademik Tryoshnikov; Arctic Century Expedition ArcticCentury; CATS - The Changing Arctic Transpolar System CATS; Arctic; laptev
• Online Access: https://dx.doi.org/10.1594/pangaea.947808; https://doi.pangaea.de/10.1594/PANGAEA.947808

A standard CTD system from Sea-Bird Electronics Inc SBE911+ with duplicate temperature and conductivity sensors was used to measure temperature, conductivity and pressure at 81 stations during an expedition to the Kara and Laptev Seas and the adjacent Arctic Ocean in August-September 2021 aboard the research vessel Akademik Tryoshnikov. We followed the recommendation of the manufacturer to calculate salinity with Seabird processing software. The salinity is given as Practical Salinity (PSU). The accuracy of the conductivity sensors was verified by measurements on water samples with a salinometer. The data set published here includes only the data from the first conductivity (SN 3290) and temperature (SN 4127) sensors. Only at station 26 the data of the second sensor pair (SN 2618/Cond, SN 5115/Temp) were used. The CTD was connected to a SBE32 Carousel Water Sampler with 24 12-liter bottles. Additionally, a Benthos Altimeter and a Wetlabs ECO-AFL Fluorometer were connected to the SBE911+ system. At 69 ...