Carbon isotope ratio (δ¹³C) in atmospheric methane from the SWERUS-C3 Arctic Ocean expedition in 2014
Brett Thornton, Kristian Andersson, Patrick Crill
Shipborne observations of methane isotopic ratio (δ¹³C) from the Eastern Arctic Ocean in July and August 2014.
This dataset provides rare measurements of δ¹³C-CH₄ in the atmosphere near the sea surface in the Eastern Arctic Ocean's marginal seas. These measurements are useful in characterizing marine sources of CH₄ in the Arctic.
Measurements were made using an Aerodyne Research direct absorption interband cascade laser spectrometer onboard the Swedish icebreaker Oden during the SWERUS-C3 expedition to the Arctic Ocean.
AtmosphereArctic carbonArctic OceanMethaneIsotopesIsotopologuesSWERUS-C3 expeditionIcebreaker OdenLaptev SeaEast Siberian SeaChukchi Sea
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Citation
References
Berchet A, Pison I, Crill PM, Thornton B, Bousquet P, Thonat T, Hocking T, Thanwerdas J, Paris J-D, Saunois M (2020). Using ship-borne observations of methane isotopic ratio in the Arctic Ocean to understand methane sources in the Arctic. Atmos. Chem. Phys. https://doi.org/10.5194/acp-2019-595
Thornton BF, Geibel MC, Crill PM, Humborg C, Mörth C‐M (2016). Methane fluxes from the sea to the atmosphere across the Siberian shelf seas. Geophys. Res. Lett. 43, 5869 – 5877. https://doi.org/10.1002/2016GL068977
Thornton B, Geibel M, Crill P, Humborg C (2016). Atmospheric methane and carbon dioxide and surface water methane from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 1. Dataset version 1.0. Bolin Centre Database. https://doi.org/10.17043/thornton-2016
Thornton B, Andersson K, Crill P (2020b). Atmospheric methane and carbon dioxide from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 2. Dataset version 1.0. Bolin Centre Database. https://doi.org/10.17043/swerus-2014-ghg
Data description
The data are provided in one comma-separated values (csv) file with four columns:
- GPS latitude
- GPS longitude
- GPS day-of-year (UTC time)
- Calibrated δ¹³C-CH₄ observations (‰)
Measurements are from an Aerodyne Research direct absorption interband cascade laser spectrometer. Data period is day-of-year 195 – 238 of 2014. For more details see Berchet et al. (2020).
Some further details are provided in a readme file.
Comments
Related datasets also available:
- Atmospheric methane and carbon dioxide and surface water methane from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 1 (Thornton et al. 2016)
- Atmospheric methane and carbon dioxide from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 2 (Thornton et al. 2020).
Alternative contact person for this dataset: Patrick Crill, Department of Geological Sciences, Stockholm University.
Project
Swedish – Russian – US Arctic Ocean Investigation of Climate-Cryosphere-Carbon Interactions (SWERUS-C3) expedition. Funding for the expedition was provided by the Knut and Alice Wallenberg Foundation, Vetenskapsrådet (Swedish Research Council), Stockholm University, Swedish Polar Research Secretariat, and Bolin Centre for Climate Research. This work has been supported by the Franco-Swedish IZOMET-FS project Distinguishing Arctic CH₄ sources to the atmosphere using inverse analysis of high-frequency CH₄, δ¹³C-CH₄ and CH₃D measurements.
Publisher
Bolin Centre Database
First name
Brett
Last name or organisation
Thornton
Email address
Address
Department of Geological Sciences; Stockholm University
Postal code
SE-106 91
City
Stockholm
Country
Sweden
GCMD science keyword
Earth science > Atmosphere > Atmospheric chemistry > Carbon and hydrocarbon compounds > Methane
GCMD location
Ocean > Arctic Ocean
Dataset language
English
Begin date
2014-07-14
End date
2014-08-26