Surface ocean fugacity of carbon dioxide from expedition SAS, Arctic Ocean 2021
John Prytherch, Sonja Murto
Measurements of the mole fraction of carbon dioxide (CO₂) in a gas stream equilibrated with surface ocean water, and the fugacity derived from it, were obtained from a Pro-Oceanus CO2 ProCV membrane equilibration sensor sampling from the pumped underway line of the Swedish icebreaker Oden during the expedition SAS (Synoptic Arctic Survey) covering a large area including parts of Amundsen Basin, Nansen Basin, the North Pole, Lomonosov Ridge, Morris Jesup Rise and the Yermak Plateau.
The underway line draws water from approximately 8 m depth and measurements ran continuously during the expedition from August 2 to September 11 2021.
Data include fugacity of CO₂ determined at the in situ temperature and salinity of the surrounding water at 8 m depth, the CO₂ mole fraction, and the temperature and salinity measurements. Data have been quality controlled to remove calibration measurements and periods when the underway intake flow was affected by sea ice.
MarineArctic carbonCarbon DioxideDissolved gasFugacityPartial pressureAir-sea gas exchangeArcticArctic OceanSynoptic Arctic SurveySAS 2021 expeditionIcebreaker Oden
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References
Prytherch J, Murto S, Brown I, Ulfsbo A, Thornton BF, Brüchert V, Tjernström M, Hermansson AL, Nylund AT, Holthusen LA (2024) Central Arctic Ocean surface–atmosphere exchange of CO2 and CH4 constrained by direct measurements. Biogeosciences 21:671–688. https://doi.org/10.5194/bg-21-671-2024
Bakker DCE, Alin SR, Bates N, Becker M, Gkritzalis T, Jones SD, Kozyr A, Lauvset SK, Metzl N, Nakaoka S-I, O'Brien KM, Olsen A, Pierrot D, Steinhoff T, Sutton AJ, Takao S, Tilbrook B, Wada C, Wanninkhof R, Akl J, Arbilla LA, Arruda R, Azetsu-Scott K, Barbero L, Beatty CM, Berghoff CF, Bittig HC, Burger EF, Campbell K, Cardin V, Collins A, Coppola L, Cronin M, Cross JN, Currie KI, Emerson SR, Enright MP, Enyo K, Evans W, Feely RA, Flohr A, Gehrung M, Glockzin M, González-Dávila M, Hamnca S, Hartman S, Howden SD, Kam K, Kamb L, Körtzinger A, Kosugi N, Lefèvre N, Lo Monaco C, Macovei VA, Maenner Jones S, Manalang D, Martz TR, Mdokwana B, Monacci NM, Monteiro PMS, Mordy C, Morell JM, Murata A, Neill C, Noh J-H, Nojiri Y, Ohman MD, Olivier L, Ono T, Petersen W, Plueddemann AJ, Prytherch J, Rehder G, Rutgersson A, Santana-Casiano JM, Schlitzer R, Send U, Skjelvan I, Sullivan KF, T'Jampens M, Tadokoro K, Telszewski M, Theetaert H, Tsanwani M, Vandemark D, Van Ooijen E, Veccia MH, Voynova YG, Wang H, Weller RA, Woosley RJ (2024) Surface Ocean CO2 Atlas Database Version 2024 (SOCATv2024) (NCEI Accession 0293257). https://doi.org/10.25921/9wpn-th28
Data description
This dataset includes two files:
Oden_Aug2021_Sep2021.txt- Columnar time series of the data, with column headings giving variables and units. Variables include date and time (UTC), SST, salinity and CO₂ fugacity.
Metadata-for-SOCAT_Oden_August_September_2021.xlsx- Metadata file following SOCAT conventions and describing the variables, units and instrumentation.
Comments
The data are included as a component of the analysis of CO₂ flux measurements in the central Arctic presented in Prytherch et al. (2024).
In addition, the data is stored on the SOCAT v2024 database (Bakker et al. 2024) and forms part of the gridded product. The dataset is also accessible in gridded and non-gridded forms along with supporting metadata through the SOCAT interactive data set viewer. The dataset EXPOCODE identifier is 77DN20210802.
The expedition
The data were collected in summer 2021 from Swedish icebreaker Oden during the Synoptic Arctic Survey (SAS) 2021 expedition organized by the Swedish Polar Research Secretariat.
Project
Synoptic Arctic Survey (SAS) 2021 expedition. These data are part of the Arctic Climate Across Scales (ACAS) project, funded by the Knut and Alice Wallenberg Foundation (grant no. 2016-0024). Project PI Michael Tjernström (MISU).
Publisher
Bolin Centre Database
License
First name
John
Last name or organisation
Prytherch
Email address
Address
Department of Meteorology; Stockholm University
Postal code
SE-106 91
City
Stockholm
Country
Sweden
GCMD science keyword
Earth science > Oceans > Ocean chemistry > Dissolved gases
GCMD location
Ocean > Arctic Ocean
Dataset language
English
Begin date
2021-08-02
End date
2021-09-11