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): Methane and nitrous oxide dissolved gas concentrations from rivers in the North American Arctic (2017–2019) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.941200, In: Manning, CCM et al. (2022): Methane and nitrous oxide dissolved gas concentrations and sea-air fluxes from rivers and seawater in the North American Arctic (2015–2019) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.941201
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Abstract:
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).
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
Further details:
Capelle, David W; Dacey, John W; Tortell, Philippe Daniel (2015): An automated, high through-put method for accurate and precise measurements of dissolved nitrous-oxide and methane concentrations in natural waters. Limnology and Oceanography-Methods, 13(7), 345-355, https://doi.org/10.1002/lom3.10029
Damm, Ellen; Rudels, Bert; Schauer, Ursula; Mau, Susan; Diekmann, Gerhard (2015): Methane excess in Arctic surface water- triggered by sea ice formation and melting. Scientific Reports, 5(1), 16179, https://doi.org/10.1038/srep16179
Project(s):
Coverage:
Median Latitude: 74.613131 * Median Longitude: -88.609253 * South-bound Latitude: 67.702500 * West-bound Longitude: -104.947833 * North-bound Latitude: 80.843333 * East-bound Longitude: -67.997333
Date/Time Start: 2017-08-02T22:07:00 * Date/Time End: 2019-08-13T15:15:00
Event(s):
AMD17_2_CMBB-1 (CMBB) * Latitude: 74.547100 * Longitude: -87.312000 * Date/Time: 2017-08-04T12:15:00 * Location: Canadian Arctic Archipelago (CAA) * Campaign: AMD17_2 (AN1702) * Basis: CCGS Amundsen * Method/Device: Water pump (PUMP)
AMD17_2_CMCMG-1 (CMCMG) * Latitude: 74.604860 * Longitude: -80.368160 * Date/Time: 2017-08-02T22:07:00 * Location: Canadian Arctic Archipelago (CAA) * Campaign: AMD17_2 (AN1702) * Basis: CCGS Amundsen * Method/Device: Water pump (PUMP)
AMD17_2_CMCR-1 (CMCR) * Latitude: 74.021500 * Longitude: -93.645500 * Date/Time: 2017-08-06T13:00:00 * Location: Canadian Arctic Archipelago (CAA) * Campaign: AMD17_2 (AN1702) * Basis: CCGS Amundsen * Method/Device: Water pump (PUMP)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Manning, Cara C M | |||
| 2 | Station label | Station | Manning, Cara C M | |||
| 3 | River | River | Manning, Cara C M | |||
| 4 | Location | Location | Manning, Cara C M | |||
| 5 | DATE/TIME | Date/Time | Manning, Cara C M | Geocode | ||
| 6 | LATITUDE | Latitude | Manning, Cara C M | Geocode | ||
| 7 | LONGITUDE | Longitude | Manning, Cara C M | Geocode | ||
| 8 | Methane, dissolved | CH4 diss | nmol/l | Manning, Cara C M | ||
| 9 | Methane, standard deviation | CH4 std dev | ± | Manning, Cara C M | Calculated | |
| 10 | Nitrous oxide, dissolved | N2O | nmol/l | Manning, Cara C M | Gas chromatography - Mass spectrometry (GC-MS) | |
| 11 | Nitrous oxide, standard deviation | N2O std dev | ± | Manning, Cara C M | Calculated | |
| 12 | Temperature, water | Temp | °C | Manning, Cara C M | Oakton Con5 | or Cole-Parmer C100 (different sensors used in different years) |
| 13 | Conductivity, electrical | Cond electr | µS/cm | Manning, Cara C M | Oakton Con5 | or Cole-Parmer C100 (different sensors used in different years) |
| 14 | δ13C, methane, dissolved | δ13C CH4 | ‰ PDB | Manning, Cara C M | Thermo Trace GC coupled to ThermoFinnigan DELTAplus XP (GC-C-IRMS) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
230 data points