Surfactants in the sea-surface microlayer and dissolved CH₄ and N₂O from expedition ARTofMELT, Arctic Ocean, 2023
Lina Aleke Holthusen, Julia Muchowski, Noemie Planat, Hermann W. Bange, Oliver Wurl
This dataset contains concentrations of surfactants in the sea-surface microlayer (SML) and the underlying water (ULW = 1m), and concentrations of dissolved methane (CH₄) and nitrous oxide (N₂O) at the sea surface and in the water column.
The data were collected to investigate sources and sinks and the influence of sea ice melt on trace gas dynamics and on the characteristics of the SML. From these data, sea-air-fluxes of CH₄ and N₂O can be determined to estimate gas emissions.
Samples of the SML were collected with the glass plate technique, samples at 1 m depth were collected using a Van-Dorn sampler, and water column samples were collected from Niskin bottles at a CTD-rosette.
Data was collected during the ARTofMELT 2023 with Swedish icebreaker Oden in the Fram Strait pack ice during the spring transition (8 May to 14 June) of 2023.
MarineTrace gasesMarineTrace gasesArcticArctic OceanARTofMELTARTofMELT 2023 expeditionIcebreaker OdenCH₄N₂OSea-surface microlayerSMLSurfactantsGreenhouse gas emissionsSea-air flux
Download dataName
Version
Citation
References
Holthusen et al. (2025), in prep.
Prytherch J, Brooks I, Guy H, Karalis M, Murto S, Tjernström M (2024) Micrometeorological data from icebreaker Oden’s foremast during expedition ARTofMELT, Arctic Ocean, 2023 [Dataset]. Bolin Centre Database. https://doi.org/10.17043/oden-artofmelt-2023-micromet-oden-1
Data description
The data are saved in a xlsx spreadsheet and a csv file with the following columns:
Date/Time (UTC)Coordinated Universal Time in dd.mm.yyyy hh:mm format.Latitudedecimal degree.Longitudedecimal degree.Sample IDsample label.Stationidentifier of CTD (Conductivity, Temperature and Depth sensor) or VMP (Vertical Microstructure Profiler).Depth, water (m)water depth in meters, with 0 indicating slush/ice cover and SML indicating Sea-Surface Microlayer.LocationCTD/ice station/off-ship (helicopter station)Sampling fromCTD/lead/under-ice waterTemperature, water (°C)water temperature from CTD/VMP for the respective depth.Salinity (g/kg)salinity in grams per kilogram from CTD/VMP for the respective depth.Wind Speed U10 (m/s)wind speed in meters per second from Prytherch et al. (2024). Corrected to 10 m.CH4 (nmol/L)dissolved methane concentration in nanomoles per liter, measured with gas chromatography, TRACE 1300 with Flame Ionization Detector (Thermo Scientific), headspace equilibration method.CH4 Standard Deviation (nmol/L)N2O (nmol/L)dissolved nitrous oxide concentration in nanomoles per liter, measured with gas chromatography, TRACE 1300 GC with Electron Capture Detector (Thermo Scientific), headspace equilibration method.N2O Standard Deviation (nmol/L)SAS unfiltered (μg Teq L‑1)Surfactants/Surface-active Substances in micrograms of Triton X-100 equivalents per liter, measured with alternating voltammetry, VA Stand 747 (Metrohm, Switzerland), with hanging drop mercury electrode, nonionic surfactant standard solution Triton X-100.SAS unfiltered standard deviation (μg Teq L‑1)SAS filtered (μg Teq L‑1)Surfactants/Surface-active Substances in micrograms of Triton X-100 equivalents per liter, filtered through 0.2 µm nucleopore syringe filter, measured with alternating voltammetry, VA Stand 747 (Metrohm, Switzerland), with hanging drop mercury electrode, nonionic surfactant standard solution Triton X-100.SAS filtered standard deviation (μg Teq L‑1)
Comments
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 from 8 May through 14 June, 2023.
Data creators' roles
Samples were collected by Lina Aleke Holthusen (Carl von Ossietzky Universität Oldenburg) during the Early-Career-Scientist Program hosted by the Swedish Polar Research Secretariat with Julia Muchowski as PI.
Project
ARTofMELT 2023 expedition. DFG Priority Program 1158 'Antarctic research and comparative investigations in Arctic ice areas' (project EWARP, grant no. 462668354)
Publisher
Bolin Centre Database
License
Open Data Commons Attribution License (ODC-By) v1.0
First name
Lina Aleke
Last name or organisation
Holthusen
Email address
Address
Carl von Ossietzky Universität Oldenburg Institute for Chemistry and Biology of the Marine Environment (ICBM)
Postal code
26382
City
Wilhelmshaven
Country
Germany
GCMD science keyword
Earth science > Oceans > Ocean chemistry > Marine geochemistry
GCMD location
Ocean > Arctic Ocean
Dataset language
English
Begin date
2023-05-08
End date
2023-06-14