Air-sea fluxes and concentrations of methane and carbon dioxide from expedition SAS, Arctic Ocean, 2021
John Prytherch, Sonja Murto, Ian Brown, Adam Ulfsbo, Brett Thornton, Volker Brüchert, Michael Tjernström, Anna Hermansson, Amanda Nylund, Lina Holthusen
Air-sea fluxes of methane and carbon dioxide were measured directly using floating chamber methods, as well as atmopsheric and dissolved gas concentrations and supporting meteorological measurements.
Measurements were made from 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 floating chambers were deployed in sea ice leads from ice edges as well as from Oden. Chamber gas concentration changes were analysed using an online cavity enhanced spectrometer. Dissolved gas concentrations were derived using multiple methods. Measurements were made between August 1 and September 11, 2021.
AtmosphereArctic carbonGas fluxAir-sea interactionGas transfer velocityAir-sea fluxCarbon dioxideCO2MethaneCH4Sea iceArcticArctic 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
Data description
Raw and processed data, as well as the Matlab scripts used to process the data and to generate the analysis and figures presented in Prytherch et al. (2024). Raw data are text files of varying format. Processed data is in Matlab format.
3 zipped files of total 35 MB.
Comments
Data publisher
The dataset is published at figshare under the CC BY 4.0 license.
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
figshare
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 > Atmosphere
GCMD location
Ocean > Arctic Ocean
Dataset language
English
Begin date
2021-08-01
End date
2021-09-11