First- and second-year sea-ice salinity, temperature, and density during GoNorth 2022 leg 1 ...

• Main Authors: Salganik, Evgenii, Hornnes, Vegard, Rübsamen-Von Döhren, Paul Jorrit, Panchi, Nabil, Høyland, Knut Vilhelm
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Arctic; cores; density; GoNorth; Physical properties; Salinity; Sea ice; Temperature; time-series; Event label; Station label; DATE/TIME; LATITUDE; LONGITUDE; Sea ice thickness; Sea ice draft; Snow height; Distance, relative, X; Distance, relative, Y; Sea ice type; Core; DEPTH, ice/snow; Sea ice salinity; Temperature, ice/snow; Temperature, technical; Density, ice; Volume, brine; Volume, gas; Ice drilling corer Kovacs; Conductivity meter, Mettler Toledo, SevenGo; Precision Core Thermometer, Ebro, TFX 410; Hydrostatic weighing; GoNorth1; Kronprins Haakon; Toledo
• Online Access: https://dx.doi.org/10.1594/pangaea.962567; https://doi.pangaea.de/10.1594/PANGAEA.962567

First- and second-year sea-ice thickness, draft, salinity, temperature, and density were measured during two ice stations on 24 October 2022 and 30 October 2022 during leg 1 of the GoNorth 2022 expedition. The ice cores were extracted with 7.25-cm (Mark III) internal diameter ice corers (Kovacs Enterprise, US). During each ice station, ice temperature was measured in situ from a separate temperature core, using Ebro TFX 410 Thermometer thermometers in drill holes with a length of half-core-diameter at 5 cm vertical resolution. Ice bulk practical salinity was measured from melted core sections at 5 cm resolution using a Mettler Toledo SevenGo conductivity meter. Sea ice density was measured using the hydrostatic weighing method (Pustogvar and Kulyakhtin, 2016) from several density cores in the freezer laboratory onboard RV Kronprins Haakon at the temperature from –10°C to –14°C. Relative volumes of brine and gas were estimated from ice salinity, temperature, and density using Cox and Weeks (1983) for cold ice ...