http://bolin.su.se/data/oden-swerus-2014-d13c-1 Brett Thornton, Kristian Andersson, Patrick Crill Bolin Centre Database 2020 Datafile Atmosphere Arctic carbon Arctic Ocean Methane Isotopes Isotopologues SWERUS-C3 expedition Icebreaker Oden Laptev Sea East Siberian Sea Chukchi Sea Earth science > Atmosphere > Atmospheric chemistry > Carbon and hydrocarbon compounds > Methane Brett Thornton 2020-03-30T10:41:47+00:00 English 1 None, but please cite Berchet et al. (2020) and Thornton et al. (2016) The data are provided in one comma-separated values (csv) file with four columns: 1. GPS latitude 2. GPS longitude 3. GPS day-of-year (UTC time) 4. 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. Related datasets also available: - [Atmospheric methane and carbon dioxide and surface water methane from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 1](https://bolin.su.se/data/thornton-2016) (Thornton et al. 2016) - [Atmospheric methane and carbon dioxide from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 2](https://bolin.su.se/data/swerus-2014-ghg) (Thornton et al. 2020). Alternative contact person for this dataset: [Patrick Crill](mailto:patrick.crill@geo.su.se), Department of Geological Sciences, Stockholm University.