Boron in seawater, ice, brine, lead, slush, snow, and under-ice water from expedition ARTofMELT, Arctic Ocean, 2023

Samantha C. Rush, Penny Vlahos

This is the raw data for boron collected onboard the Swedish icebreaker Oden during the expedition ARTofMELT (Atmospheric Rivers and the Onset of Arctic Melt) in the Fram Strait pack ice during the spring transition, 8 May to 14 June of 2023.

The objective of the study was to evaluate the carbonate system in sea ice with the onset of melt. This dataset includes specifically spectrophotometric pH at 25 degrees Celsius (°C) and in-situ temperatures, boron concentrations, the boron to salinity ratio (B/S), and the computed borate contributions to alkalinity (and the associated error).

The dataset also contains location, salinity, temperature, and water/ice/snow depth information across the sample types.

Citation

Samantha C. Rush, Penny Vlahos (2024) Boron in seawater, ice, brine, lead, slush, snow, and under-ice water in the Fram Strait and Eastern Central Arctic May-June 2023. Arctic Data Center. https://doi.org/10.18739/A2T14TR3Q

References

Rush SC, Vlahos P (2024) Boron in seawater, ice, brine, lead, slush, snow, and under-ice water in the Fram Strait and Eastern Central Arctic May-June 2023. Arctic Data Center. https://doi.org/10.18739/A2T14TR3Q

Chen B, Cai W-J, Chen L (2015) The marine carbonate system of the Arctic Ocean: Assessment of internal consistency and sampling considerations, summer 2010. Marine Chemistry 176:174–188. https://doi.org/10.1016/j.marchem.2015.09.007

Data description

The dataset is provided in one comma-separated values (csv) file with 170 rows and 20 columns with the following headers:

• Sample Type
• Station
• Cast
• Water Column Depth (m)
• Ice Core Depth (cm) Depth of ice, with zero measured at ice-atmosphere interface
• Snow Depth (cm) Depth of ice, with zero measured at snow-atmosphere interface
• Latitude
• Longitude
• Salinity
• T (°C)
• B (mg/kg) The measured total concentration of boron
• B/S The calculated boron to salinity ratio
• pH 25 °C Measured shipboard pH at 25 degrees Celsius
• ln(KB) 25 °C The natural logarithm of the equilibrium constant of the boric acid to borate reaction at 25 degrees Celsius
• Borate 25 °C (µmol kg-1) The concentration of borate contributing to total alkalinity at 25 degrees Celsius
• BALK 25 °C Uncertainty (µmol kg-1) The associated error in the borate contribution to total alkalinity at 25 degrees Celsius
• pH in-situ The measured pH adjusted to in-situ temperatures using CO2SYS by Chen et al. (2015) constant choices
• ln(KB) in-situ The natural logarithm of the equilibrium constant of the boric acid to borate reaction at in-situ temperatures
• Borate in-situ (µmol kg-1) The concentration of borate contributing to total alkalinity at in-situ temperatures
• BALK in-situ Uncertainty (µmol kg-1) The associated error in the borate contribution to total alkalinity at in-situ temperatures

For a detailed description of dataset content, methods and sampling procedures, see text by Rush & Vlahos (2024) at the dataset site at the NSF Arctic Data Center.

Comments

Dataset publisher

The dataset is published by the NSF Arctic Data Center under the Creative Commons Universal 1.0 Public Domain Dedication.

The expedition

Data were collected during the ARTofMELT 2023 expedition on board the Swedish icebreaker Oden, which was organized by the Swedish Polar Research Secretariat.