Methane and nitrous oxide dissolved gas concentrations from rivers in the North American Arctic (2017–2019)

Manning, Cara C M; Zheng, Zhiyin; Fenwick, Lindsay; McCulloch, Ross D; Damm, Ellen; Izett, Robert W; Williams, William J; Zimmermann, Sarah; Vagle, Svein; Tortell, Philippe Daniel

This dataset contains methane and nitrous oxide dissolved gas concentration and dissolved methane carbon isotope data from rivers in the Canadian Arctic Archipelago region collected between 2017-2019. River samples were collected during CCGS Amundsen cruises using a helicopter to travel to the rivers. At each river site, river water was pumped through tubing using a peristaltic pump. Water was collected into glass serum bottles and allowed to overflow three times before preserving with mercuric chloride and sealing with butyl rubber stoppers and aluminum crimp seals. Gas concentrations were determined using a purge and trap system coupled to a gas chromatograph/mass spectrometer, following the method of Capelle et al. (2015). For methane 𝛿13C, samples (one sample per event) were pre-concentrated through a purge and trap system (Finnigan PreCon Trace Gas Pre-Concentrator) and measured with a Finnigan Delta XP Plus mass spectrometer following the method of Damm et al. (2015).

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Manning, Cara C M

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Zusätzliche Informationen

Feld Wert
Identifikator DOI: 10.1594/PANGAEA.941200
Projekt(e) Global marine biogeochemical cycles of trace elements and their isotopes (GEOTRACES); Marine Biogeochemistry and Surface Exchange of Climate Active Gases (ArcticNet)
Institut University of British Columbia
Quelle https://doi.pangaea.de/10.1594/PANGAEA.941200
Publikationsdatum 2022
Version 1.0
Produkt Methane/nitrous oxide dissolved gas concentrations and dissolved methane carbon isotope data
Sensor(en) Finnigan Delta XP Plus mass spectrometer
Dateien
  1. N2O_CH4_river.tab
Variablen [Einheiten]
  1. Event: Event label
  2. Station: Station label
  3. River: River name
  4. Date/Time: Date and time
  5. Latitude: [°N]
  6. Latitude: [°E]
  7. CH4 diss: Dissolved methane [nmol l-1]
  8. CH4 std dev: Dissolved methane standard deviation [±]
  9. N2O: Dissolved nitrous oxide [nmol l-1]
  10. N2O std dev: Dissolved nitrous oxide standard deviation [±]
  11. Temp: Temperature, water [°C]
  12. Cond electr: Electrical conductivity [µS cm-1]
  13. δ13C CH4: δ13C dissolved methane [‰ PDB]
Region North American Arctic
Räumlicher Bezug
Räumliche Auflösung Point based
Räumliche Abdeckung Latitude 67.7025 to 80.8433, Longitude -104.9478 to -67.9973
Zeitliche Abdeckung 2017-2019
Zeitliche Auflösung Discrete
Format TXT
Is Supplement To

Manning, Cara C M; Zheng, Zhiyin; Fenwick, Lindsay; McCulloch, Ross D; Damm, Ellen; Izett, Robert W; Williams, William J; Zimmermann, Sarah; Vagle, Svein; Tortell, Philippe Daniel (2022): Interannual variability in methane and nitrous oxide concentrations and sea‐air fluxes across the North American Arctic Ocean (2015–2019). Global Biogeochemical Cycles, 36, e2021GB007185, https://doi.org/10.1029/2021GB007185

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