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  • 1
    facet.materialart.
    Unknown
    Methane and nitrous oxide dissolved gas concentrations and sea-air fluxes from rivers and seawater in the North American Arctic (2015–2019) (2022)
    PANGAEA
    Details
    Publication Date: 2024-05-04
    Description: This dataset contains methane and nitrous oxide dissolved gas concentration, dissolved methane carbon isotope, and ancillary hydrographic data from research cruises in the North American Arctic Ocean between 2015-2018. It also 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.
    Keywords: Arctic; ArcticNet; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; International Polar Year (2007-2008); IPY; Marine Biogeochemistry and Surface Exchange of Climate Active Gases; Methane; nitrous oxide; ocean; rivers
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Methane and nitrous oxide dissolved gas concentrations from rivers in the North American Arctic (2017–2019) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    Description: 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).
    Keywords: AMD17_2; AMD17_2_CMBB-1; AMD17_2_CMCMG-1; AMD17_2_CMCR-1; AMD17_2_CMCR2-1; AMD17_2_CMGR-1; AMD17_2_CMLFI-1; AMD17_2_CMMB-1; AMD17_2_CMMR-1; AMD18_3; AMD18_3_CMCR-1; AMD18_3_CMER-1; AMD18_3_CMGR-1; AMD18_3_CMLFI-1; AMD18_3_CMSR-1; AMD18_3_CMSR2-1; AMD18_3_CMTR-1; AMD19_2; AMD19_2_RI135-1; AMD19_2_RI6.1-1; AMD19_2_RICP-1; AMD19_2_RIDIE-1; AMD19_2_RIDIW-1; AMD19_2_RIDIW-N-1; AMD19_2_RIEE-1; AMD19_2_RIESC-1; AMD19_2_RIHI-1; AMD19_2_RISG-1; AN1702; AN1902; Arctic; ArcticNet; CAA; Calculated; Canadian Arctic Archipelago; CCGS Amundsen; CMBB; CMCMG; CMCR; CMCR2; CMER; CMGR; CMLFI; CMMB; CMMR; CMSR; CMSR2; CMTR; Conductivity, electrical; DATE/TIME; Event label; Gas chromatography - Mass spectrometry (GC-MS); GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; International Polar Year (2007-2008); IPY; LATITUDE; Location; LONGITUDE; Marine Biogeochemistry and Surface Exchange of Climate Active Gases; Methane; Methane, dissolved; Methane, standard deviation; nitrous oxide; Nitrous oxide, dissolved; Nitrous oxide, standard deviation; Oakton Con5; ocean; PUMP; RI135; RI6.1; RICP; RIDIE; RIDIW; RIDIW-N; RIEE; RIESC; RIHI; RISG; River; rivers; Station label; Temperature, water; Thermo Trace GC coupled to ThermoFinnigan DELTAplus XP (GC-C-IRMS); Water pump; δ13C, methane, dissolved
    Type: Dataset
    Format: text/tab-separated-values, 230 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Methane and nitrous oxide dissolved gas concentrations in seawater from the North American Arctic Ocean (2015–2018) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-28
    Description: This dataset contains methane and nitrous oxide dissolved gas concentration, dissolved methane carbon isotope, and ancillary hydrographic data from research cruises in the North American Arctic Ocean between 2015-2018. Ocean samples for methane and nitrous oxide analysis were collected from Niskin bottles mounted on a CTD rosette. Water was collected into glass serum bottles and allowed to overflow three times before preserving with mercuric chloride and sealing with 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). Equilibrium dry atmospheric concentrations were 328.25, 329.14, 330.11, and 330.96 ppb for N2O and 1919.64, 1933.67, 1934.92, and 1933.50 ppb for CH4 in 2015, 2016, 2017, and 2018, respectively. Equilibrium dissolved concentrations were calculated from the measured temperature and salinity following Wiesenburg and Guinasso (1979) for CH4 and Weiss and Price (1980) for N2O. Equilibrium concentrations were calculated based on sample temperature and salinity and the atmospheric N2O or CH4 concentrations measured at Barrow, Alaska by the NOAA Earth System Research Laboratory Global Monitoring Division (Dlugokencky et al., 2020a,b), with corrections to local sea level pressure and 100% humidity. Oxygen concentration was determined using an oxygen sensor mounted on the Niskin rosette, calibrated with discrete samples analyzed by Winkler titration. The mixed layer depth was defined based on a potential density difference criterion of 0.125 kg/m³ relative to the density at 5 m depth, using CTD profiles binned to 1 m. The mixed layer depth was set to 5 m as a minimum. For methane δ13C, samples 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).
    Keywords: 101; 105; 108; 111; 115; 126; 129; 131; 176; 177; 180; 2015-006; 2015-007; 2016-016; 2016-017; 2017-011; 2017-093; 2018-063; 2018-081; 301; 304; 312; 314; 322; 323; 325; 333; 343; 344; 405; 408; 420; 421; 424; 426; 428; 430; 432; 434; 437; 470; 472; 474; 476; 478; 480; 482; 5.1; 535; 554; 694; 732; 736; A16; A2; A8; AG5; AMD15_2; AMD15_2_312-1; AMD15_2_314-1; AMD15_2_325-1; AMD15_2_BB2-1; AMD15_2_BB3-1; AMD15_2_CAA1-1; AMD15_2_CAA2-1; AMD15_2_CAA4-1; AMD15_2_CAA5-1; AMD15_2_CAA6-1; AMD15_2_CAA7-1; AMD15_2_VS-1; AMD16_3a; AMD16_3a_405-1; AMD16_3a_408-1; AMD16_3a_420-1; AMD16_3a_421-1; AMD16_3a_424-1; AMD16_3a_426-1; AMD16_3a_428-1; AMD16_3a_430-1; AMD16_3a_432-1; AMD16_3a_434-1; AMD16_3a_437-1; AMD16_3a_470-1; AMD16_3a_472-1; AMD16_3a_474-1; AMD16_3a_476-1; AMD16_3a_478-1; AMD16_3a_480-1; AMD16_3a_482-1; AMD16_3a_535-1; AMD16_3a_554-1; AMD16_3b; AMD16_3b_312-1; AMD16_3b_314-1; AMD16_3b_343-1; AMD16_3b_344-1; AMD17_2; AMD17_2_101-1; AMD17_2_105-1; AMD17_2_108-1; AMD17_2_111-1; AMD17_2_115-1; AMD17_2_126-1; AMD17_2_129-1; AMD17_2_131-1; AMD17_2_176-1; AMD17_2_180-1; AMD17_2_301-1; AMD17_2_304-1; AMD17_2_312-1; AMD17_2_322-1; AMD17_2_323-1; AMD17_2_325-1; AMD17_2_333-1; AMD17_2_5.1-1; AMD17_2_694-1; AMD17_2_732-1; AMD17_2_736-1; AMD17_2_A16-1; AMD17_2_A2-1; AMD17_2_A8-1; AMD17_2_BB1-1; AMD17_2_BB2-1; AMD17_2_BB3-1; AMD17_2_BELLOT-1; AMD17_2_FS2Deep-1; AMD17_2_FS2Shallow-1; AMD17_2_QMG1-1; AMD17_2_QMG2-1; AMD17_2_QMG3-1; AMD17_2_QMG4-1; AMD17_2_QMGM-1; AMD17_2_TS233-1; AMD18_3; AMD18_3_101-3; AMD18_3_115-3; AMD18_3_177-3; AMD18_3_312-3; AMD18_3_322-3; AMD18_3_DFO-9-3; AMD18_3_DiskoFan-3; AMD18_3_Lophelia-3; AMD18_3_NearTrinity-3; AMD18_3_NLSE-07-3; AMD18_3_QMG1-3; AMD18_3_QMG2-3; AMD18_3_QMG3-3; AMD18_3_QMG4-3; AMD18_3_QMGM-3; AMD18_3_ScottInlet0t2-3; AMD18_3_ScottInlet-3; AMD18_3_SWGreenland3-3; AN1702; Arctic; ArcticNet; ArcticNet/ESRF; ArcticNet/The W. Garfield Weston Foundation; Arctic Ocean; BarC-1; BarC-10; BarC-2; BarC-4; BarC-5; BarC-6; BarC-8; BB1; BB2; BB3; BCL-6A; BELLOT; BL1; BL2; BL3; BL4; BL6; BL8; Bottle number; BRS-3; CAA1; CAA2; CAA4; CAA5; CAA6; CAA7; Calculated; Canadian Coast Guard (Sir W. Laurier); Cast number; CB1; CB23a; CB28aa; CB28b; CB31b; CB4; CCGS Amundsen; CTD, Sea-Bird; CTD/Rosette; CTD-RO; DATE/TIME; DBO4.1; DBO4.2; DBO4.2n; DBO4.3; DBO4.3n; DBO4.4; DBO4.4n; DBO4.5; DBO4.5n; DBO4.6; DBO4.6n; DEPTH, water; DFO-9; DiskoFan; Event label; FS2Deep; FS2Shallow; Gas chromatography - Mass spectrometry (GC-MS); GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; International Polar Year (2007-2008); IPY; LATITUDE; LEG 2 GEOTRACES/ARCTICNET; LONGITUDE; Lophelia; Louis S. St-Laurent; LSL1509; LSL1509_AG5-1; LSL1509_BL2-1; LSL1509_BL4-1; LSL1509_BL6-1; LSL1509_CB1-1; LSL1509_CB23a-1; LSL1509_CB28aa-1; LSL1509_CB31b-1; LSL1509_CB4-1; LSL1509_MK1-1; LSL1509_MK2-1; LSL1509_MK3-1; LSL1509_MK4-1; LSL1609; LSL1609_AG5-1; LSL1609_BL1-1; LSL1609_BL2-1; LSL1609_BL3-1; LSL1609_BL4-1; LSL1609_BL6-1; LSL1609_BL8-1; LSL1609_CB28aa-1; LSL1609_MK1-1; LSL1609_MK2-1; LSL1609_MK3-1; LSL1609_MK4-1; LSL1709; LSL1709_AG5-1; LSL1709_BL1-1; LSL1709_BL2-1; LSL1709_BL3-1; LSL1709_BL4-1; LSL1709_BL6-1; LSL1709_BL8-1; LSL1709_CB28aa-1; LSL1709_CB28b-1; LSL1709_MK3-1; LSL1809; LSL1809_AG5-1; LSL1809_BL1-1; LSL1809_BL2-1; LSL1809_BL3-1; LSL1809_BL4-1; LSL1809_BL6-1; LSL1809_BL8-1; LSL1809_CB28aa-1; LSL1809_MK1-1; LSL1809_MK2-1; LSL1809_MK3-1; LSL1809_MK4-1; Marine Biogeochemistry and Surface Exchange of Climate Active Gases; Methane; Methane, dissolved; Methane, dissolved, equilibrium; Methane, standard deviation; Mixed layer depth; MK1; MK2; MK3; MK4; NearTrinity; nitrous oxide; Nitrous oxide, dissolved; Nitrous oxide, dissolved, equilibrium; Nitrous oxide, standard deviation; NLSE-07; ocean; Oxygen; Pressure, water; QMG1; QMG2; QMG3; QMG4; QMGM; rivers; Salinity; Sample ID; ScottInlet; ScottInlet0t2; SEC-1; SEC-3; SEC-5; SEC-7; SEC-8; SLIP-1; SLIP-3; SLIP-4; SLIP-5; Station label; SWGreenland3; SWL1507; SWL1507_BarC-10-1; SWL1507_BarC-2-1; SWL1507_BarC-4-1; SWL1507_BarC-6-1; SWL1507_BarC-8-1; SWL1507_BCL-6A-1; SWL1507_BRS-3-1; SWL1507_DBO4.1-1; SWL1507_DBO4.2-1; SWL1507_DBO4.3-1; SWL1507_DBO4.5-1; SWL1507_SEC-1-1; SWL1507_SEC-3-1; SWL1507_SEC-5-1; SWL1507_SEC-7-1; SWL1507_SLIP-1-1; SWL1507_SLIP-3-1; SWL1507_SLIP-4-1; SWL1507_SLIP-5-1; SWL1507_UTBS-2-1; SWL1507_UTBS-4-1; SWL1507_UTN-1-1; SWL1507_UTN-3-1; SWL1507_UTN-7-1; SWL1607; SWL1607_BCL-6A-1; SWL1607_BRS-3-1; SWL1607_DBO4.1-1; SWL1607_DBO4.3-1; SWL1607_SEC-1-1; SWL1607_SEC-3-1; SWL1607_SEC-5-1; SWL1607_SEC-7-1; SWL1607_SLIP-1-1; SWL1607_SLIP-3-1; SWL1607_SLIP-4-1; SWL1607_SLIP-5-1; SWL1607_UTBS-1-1; SWL1607_UTBS-5-1; SWL1607_UTN-2-1; SWL1607_UTN-4-1; SWL1607_UTN-6-1; SWL1707; SWL1707_BarC-10-1; SWL1707_BarC-1-1; SWL1707_BarC-5-1; SWL1707_BCL-6A-1; SWL1707_BRS-3-1; SWL1707_DBO4.1-1; SWL1707_DBO4.2-1; SWL1707_DBO4.3-1; SWL1707_DBO4.4-1; SWL1707_DBO4.5-1; SWL1707_DBO4.6-1; SWL1707_SEC-1-1; SWL1707_SEC-3-1; SWL1707_SEC-5-1; SWL1707_SEC-7-1; SWL1707_SEC-8-1; SWL1707_SLIP-1-1; SWL1707_SLIP-3-1; SWL1707_SLIP-4-1; SWL1707_SLIP-5-1; SWL1707_UTBS-1-1; SWL1707_UTBS-5-1; SWL1707_UTN-2-1; SWL1707_UTN-4-1; SWL1707_UTN-6-1; SWL1807; SWL1807_BCL-6A-1; SWL1807_BRS-3-1; SWL1807_DBO4.2n-1; SWL1807_DBO4.3n-1; SWL1807_DBO4.4n-1; SWL1807_DBO4.5n-1; SWL1807_DBO4.6n-1; SWL1807_SEC-1-1; SWL1807_SEC-3-1; SWL1807_SEC-5-1; SWL1807_SEC-7-1; SWL1807_SLIP-1-1; SWL1807_SLIP-3-1; SWL1807_SLIP-4-1; SWL1807_SLIP-5-1; SWL1807_UTBS-1-1; SWL1807_UTBS-5-1; SWL1807_UTN-2-1; SWL1807_UTN-4-1; Temperature, water; Thermo Trace GC coupled to ThermoFinnigan DELTAplus XP (GC-C-IRMS); TS233; UTBS-1; UTBS-2; UTBS-4; UTBS-5; UTN-1; UTN-2; UTN-3; UTN-4; UTN-6; UTN-7; VS; δ13C, methane, dissolved; δ13C, methane, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 37056 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
    facet.materialart.
    Unknown
    Methane and nitrous oxide sea-air fluxes calculated from samples collected in the North American Arctic Ocean (2015–2018) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-28
    Description: This dataset contains methane and nitrous oxide dissolved gas concentration, dissolved methane carbon isotope, and ancillary hydrographic data from research cruises in the North American Arctic Ocean between 2015-2018. Ocean samples for methane and nitrous oxide analysis were collected from Niskin bottles mounted on a CTD rosette. Water was collected into glass serum bottles and allowed to overflow three times before preserving with mercuric chloride and sealing with 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). Equilibrium dry atmospheric concentrations were 328.25, 329.14, 330.11, and 330.96 ppb for N2O and 1919.64, 1933.67, 1934.92, and 1933.50 ppb for CH4 in 2015, 2016, 2017, and 2018, respectively. Equilibrium dissolved concentrations were calculated from the measured temperature and salinity following Wiesenburg and Guinasso (1979) for CH4 and Weiss and Price (1980) for N2O. Equilibrium concentrations were calculated based on sample temperature and salinity and the atmospheric N2O or CH4 concentrations measured at Barrow, Alaska by the NOAA Earth System Research Laboratory Global Monitoring Division (Dlugokencky et al., 2020a,b), with corrections to local sea level pressure and 100% humidity. Oxygen concentration was determined using an oxygen sensor mounted on the Niskin rosette, calibrated with discrete samples analyzed by Winkler titration. The mixed layer depth was defined based on a potential density difference criterion of 0.125 kg/m³ relative to the density at 5 m depth, using CTD profiles binned to 1 m. The mixed layer depth was set to 5 m as a minimum. The instantaneous gas transfer velocities and fluxes are based on the instantaneous wind speed at the time of sampling. The 30-day weighted gas transfer velocities and fluxes are integrated over the residence time of the gas in the mixed layer, using up to the prior 30 days of observations, following the method of Teeter et al. (2018) as described in the main manuscript of Manning et al. (2022). The 60-day weighted gas transfer velocities and fluxes are integrated over the residence time of the gas in the mixed layer, using the prior 60 days of observations, following the method of Teeter et al. (2018) as described in the main manuscript of Manning et al. (2022). Atmospheric sea level pressure was obtained from the NCEP/NCAR reanalysis product, which is provided by the NOAA-ESRL Physical Sciences Laboratory (https://psl.noaa.gov/data/gridded). Fractional ice cover was obtained from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (https://osi-saf.eumetsat.int). Sea ice concentration product AMSR-2 (identifier OSI-408) was used in 2017–2018 and SSMIS (identifier OSI-401-b) was used in 2015–2016.
    Keywords: 101; 105; 108; 111; 115; 126; 129; 131; 176; 177; 180; 2015-006; 2015-007; 2016-016; 2016-017; 2017-011; 2017-093; 2018-063; 2018-081; 301; 304; 312; 314; 322; 323; 325; 333; 343; 344; 405; 408; 420; 421; 424; 426; 428; 430; 432; 434; 437; 470; 472; 474; 476; 478; 480; 482; 5.1; 535; 554; 694; 732; A16; A2; A8; AG5; AMD15_2; AMD15_2_312-1; AMD15_2_314-1; AMD15_2_325-1; AMD15_2_BB2-1; AMD15_2_BB3-1; AMD15_2_CAA1-1; AMD15_2_CAA2-1; AMD15_2_CAA4-1; AMD15_2_CAA5-1; AMD15_2_CAA6-1; AMD15_2_CAA7-1; AMD15_2_VS-1; AMD16_3a; AMD16_3a_312-1; AMD16_3a_314-1; AMD16_3a_343-1; AMD16_3a_344-1; AMD16_3a_405-1; AMD16_3a_408-1; AMD16_3a_420-1; AMD16_3a_421-1; AMD16_3a_424-1; AMD16_3a_426-1; AMD16_3a_428-1; AMD16_3a_430-1; AMD16_3a_432-1; AMD16_3a_434-1; AMD16_3a_437-1; AMD16_3a_470-1; AMD16_3a_472-1; AMD16_3a_474-1; AMD16_3a_476-1; AMD16_3a_478-1; AMD16_3a_480-1; AMD16_3a_482-1; AMD16_3a_535-1; AMD16_3a_554-1; AMD17_2; AMD17_2_101-1; AMD17_2_105-1; AMD17_2_108-1; AMD17_2_111-1; AMD17_2_115-1; AMD17_2_126-1; AMD17_2_129-1; AMD17_2_131-1; AMD17_2_176-1; AMD17_2_180-1; AMD17_2_301-1; AMD17_2_304-1; AMD17_2_312-1; AMD17_2_322-1; AMD17_2_323-1; AMD17_2_325-1; AMD17_2_333-1; AMD17_2_5.1-1; AMD17_2_694-1; AMD17_2_732-1; AMD17_2_A16-1; AMD17_2_A2-1; AMD17_2_A8-1; AMD17_2_BB1-1; AMD17_2_BB2-1; AMD17_2_BB3-1; AMD17_2_BELLOT-1; AMD17_2_FS2Deep-1; AMD17_2_QMG1-1; AMD17_2_QMG2-1; AMD17_2_QMG3-1; AMD17_2_QMG4-1; AMD17_2_QMGM-1; AMD17_2_TS233-1; AMD18_3; AMD18_3_101-3; AMD18_3_115-3; AMD18_3_177-3; AMD18_3_312-3; AMD18_3_322-3; AMD18_3_DFO-9-3; AMD18_3_DiskoFan-3; AMD18_3_Lophelia-3; AMD18_3_NearTrinity-3; AMD18_3_NLSE-07-3; AMD18_3_QMG1-3; AMD18_3_QMG2-3; AMD18_3_QMG3-3; AMD18_3_QMG4-3; AMD18_3_QMGM-3; AMD18_3_ScottInlet0t2-3; AMD18_3_ScottInlet-3; AMD18_3_SWGreenland3-3; AN1702; Arctic; ArcticNet; ArcticNet/ESRF; Arctic Ocean; BarC-1; BarC-10; BarC-2; BarC-4; BarC-5; BarC-6; BarC-8; BB1; BB2; BB3; BCL-6A; BELLOT; BL1; BL2; BL3; BL4; BL6; BL8; BRS-3; CAA1; CAA2; CAA4; CAA5; CAA6; CAA7; Calculated; Canadian Coast Guard (Sir W. Laurier); CB1; CB23a; CB28aa; CB28b; CB31b; CB4; CCGS Amundsen; CTD, Sea-Bird; CTD/Rosette; CTD-RO; DATE/TIME; DBO4.1; DBO4.2; DBO4.2n; DBO4.3; DBO4.3n; DBO4.4; DBO4.4n; DBO4.5; DBO4.5n; DBO4.6; DBO4.6n; DEPTH, water; DFO-9; DiskoFan; Event label; FS2Deep; Gas chromatography - Mass spectrometry (GC-MS); GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Ice cover, fractional; International Polar Year (2007-2008); IPY; LATITUDE; LEG 2 GEOTRACES/ARCTICNET; LONGITUDE; Lophelia; Louis S. St-Laurent; LSL1509; LSL1509_AG5-1; LSL1509_BL2-1; LSL1509_BL4-1; LSL1509_BL6-1; LSL1509_CB1-1; LSL1509_CB23a-1; LSL1509_CB28aa-1; LSL1509_CB31b-1; LSL1509_CB4-1; LSL1509_MK1-1; LSL1509_MK2-1; LSL1509_MK3-1; LSL1509_MK4-1; LSL1609; LSL1609_AG5-1; LSL1609_BL1-1; LSL1609_BL2-1; LSL1609_BL3-1; LSL1609_BL4-1; LSL1609_BL6-1; LSL1609_BL8-1; LSL1609_CB28aa-1; LSL1609_MK1-1; LSL1609_MK2-1; LSL1609_MK3-1; LSL1609_MK4-1; LSL1709; LSL1709_AG5-1; LSL1709_BL1-1; LSL1709_BL2-1; LSL1709_BL3-1; LSL1709_BL4-1; LSL1709_BL6-1; LSL1709_BL8-1; LSL1709_CB28aa-1; LSL1709_CB28b-1; LSL1709_MK3-1; LSL1809; LSL1809_AG5-1; LSL1809_BL1-1; LSL1809_BL2-1; LSL1809_BL3-1; LSL1809_BL4-1; LSL1809_BL6-1; LSL1809_BL8-1; LSL1809_CB28aa-1; LSL1809_MK1-1; LSL1809_MK2-1; LSL1809_MK3-1; LSL1809_MK4-1; Marine Biogeochemistry and Surface Exchange of Climate Active Gases; Methane; Methane, dissolved; Methane, dissolved, equilibrium; Methane, dissolved, gas transfer velocity; Methane, flux; Methane, standard deviation; Mixed layer depth; MK1; MK2; MK3; MK4; NearTrinity; nitrous oxide; Nitrous oxide, dissolved; Nitrous oxide, dissolved, equilibrium; Nitrous oxide, dissolved, gas transfer velocity; Nitrous oxide, flux; Nitrous oxide, standard deviation; NLSE-07; ocean; Pressure; Pressure, water; QMG1; QMG2; QMG3; QMG4; QMGM; rivers; Salinity; ScottInlet; ScottInlet0t2; SEC-1; SEC-3; SEC-5; SEC-7; SEC-8; SLIP-1; SLIP-3; SLIP-4; SLIP-5; Station label; SWGreenland3; SWL1507; SWL1507_BarC-10-1; SWL1507_BarC-2-1; SWL1507_BarC-4-1; SWL1507_BarC-6-1; SWL1507_BarC-8-1; SWL1507_BCL-6A-1; SWL1507_BRS-3-1; SWL1507_DBO4.1-1; SWL1507_DBO4.2-1; SWL1507_DBO4.3-1; SWL1507_DBO4.5-1; SWL1507_SEC-1-1; SWL1507_SEC-3-1; SWL1507_SEC-5-1; SWL1507_SEC-7-1; SWL1507_SLIP-1-1; SWL1507_SLIP-3-1; SWL1507_SLIP-4-1; SWL1507_SLIP-5-1; SWL1507_UTBS-2-1; SWL1507_UTBS-4-1; SWL1507_UTN-1-1; SWL1507_UTN-3-1; SWL1507_UTN-7-1; SWL1607; SWL1607_BCL-6A-1; SWL1607_BRS-3-1; SWL1607_DBO4.1-1; SWL1607_DBO4.3-1; SWL1607_SEC-1-1; SWL1607_SEC-3-1; SWL1607_SEC-5-1; SWL1607_SEC-7-1; SWL1607_SLIP-1-1; SWL1607_SLIP-3-1; SWL1607_SLIP-4-1; SWL1607_SLIP-5-1; SWL1607_UTBS-1-1; SWL1607_UTBS-5-1; SWL1607_UTN-2-1; SWL1607_UTN-4-1; SWL1607_UTN-6-1; SWL1707; SWL1707_BarC-10-1; SWL1707_BarC-1-1; SWL1707_BarC-5-1; SWL1707_BCL-6A-1; SWL1707_BRS-3-1; SWL1707_DBO4.1-1; SWL1707_DBO4.2-1; SWL1707_DBO4.3-1; SWL1707_DBO4.4-1; SWL1707_DBO4.5-1; SWL1707_DBO4.6-1; SWL1707_SEC-1-1; SWL1707_SEC-3-1; SWL1707_SEC-5-1; SWL1707_SEC-7-1; SWL1707_SEC-8-1; SWL1707_SLIP-1-1; SWL1707_SLIP-3-1; SWL1707_SLIP-4-1; SWL1707_SLIP-5-1; SWL1707_UTBS-1-1; SWL1707_UTBS-5-1; SWL1707_UTN-2-1; SWL1707_UTN-4-1; SWL1707_UTN-6-1; SWL1807; SWL1807_BCL-6A-1; SWL1807_BRS-3-1; SWL1807_DBO4.2n-1; SWL1807_DBO4.3n-1; SWL1807_DBO4.4n-1; SWL1807_DBO4.5n-1; SWL1807_DBO4.6n-1; SWL1807_SEC-1-1; SWL1807_SEC-3-1; SWL1807_SEC-5-1; SWL1807_SEC-7-1; SWL1807_SLIP-1-1; SWL1807_SLIP-3-1; SWL1807_SLIP-4-1; SWL1807_SLIP-5-1; SWL1807_UTBS-1-1; SWL1807_UTBS-5-1; SWL1807_UTN-2-1; SWL1807_UTN-4-1; Temperature, water; TS233; UTBS-1; UTBS-2; UTBS-4; UTBS-5; UTN-1; UTN-2; UTN-3; UTN-4; UTN-6; UTN-7; VS
    Type: Dataset
    Format: text/tab-separated-values, 6776 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Methane and nitrous oxide distributions across the North American Arctic Ocean during summer 2015 (2017)
    American Geophysical Union
    In:  EPIC3Journal of Geophysical research: Ocean, American Geophysical Union, 122, pp. 1-18
    Details
    Publication Date: 2017-11-12
    Description: We collected Arctic Ocean water column samples for methane (CH4) and nitrous oxide (N2O) analysis on three separate cruises in the summer and fall of 2015, covering a ~10,000 km transect from the Bering Sea to Baffin Bay. This provided a three-dimensional view of CH4 and N2O distributions across contrasting hydrographic environments, from the oligotrophic waters of the deep Canada Basin and Baffin Bay, to the productive shelves of the Bering and Chukchi Seas. Percent saturation relative to atmospheric equilibrium ranged from 30-800% for CH4 and 75-145% for N2O, with the highest concentrations of both gases occurring in the northern Chukchi Sea. Nitrogen cycling in the shelf sediments of the Bering and Chukchi Seas likely constituted the major source of N2O to the water column, and the resulting high N2O concentrations were transported across the Arctic Ocean in eastward-flowing water masses. Methane concentrations were more spatially heterogeneous, reflecting a variety of localized inputs, including likely sources from sedimentary methanogenesis and sea ice processes. Unlike N2O, CH4 was rapidly consumed through microbial oxidation in the water column, as shown by the 13C enrichment of CH4 with decreasing concentrations. For both CH4 and N2O, sea-air fluxes were close to neutral, indicating that our sampling region was neither a major source nor sink of these gases. Our results provide insight into the factors controlling the distribution of CH4 and N2O in the North American Arctic Ocean, and an important baseline data set against which future changes can be assessed.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 6
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    Unknown
    Water properties, heat and volume fluxes of Pacific water in Barrow Canyon during summer 2010 (2015)
    Elsevier
    Details
    Publication Date: 2022-05-25
    Description: © The Author(s), 2015. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Deep Sea Research Part I: Oceanographic Research Papers 102 (2015): 43-54, doi:10.1016/j.dsr.2015.04.004.
    Description: Over the past few decades, sea ice retreat during summer has been enhanced in the Pacific sector of the Arctic basin, likely due in part to increasing summertime heat flux of Pacific-origin water from the Bering Strait. Barrow Canyon, in the northeast Chukchi Sea, is a major conduit through which the Pacific-origin water enters the Arctic basin. This paper presents results from 6 repeat high-resolution shipboard hydrographic/velocity sections occupied across Barrow Canyon in summer 2010. The different Pacific water masses feeding the canyon – Alaskan coastal water (ACW), summer Bering Sea water (BSW), and Pacific winter water (PWW) – all displayed significant intra-seasonal variability. Net volume transports through the canyon were between 0.96 and 1.70 Sv poleward, consisting of 0.41–0.98 Sv of warm Pacific water (ACW and BSW) and 0.28–0.65 Sv of PWW. The poleward heat flux also varied strongly, ranging from 8.56 TW to 24.56 TW, mainly due to the change in temperature of the warm Pacific water. Using supplemental mooring data from the core of the warm water, along with wind data from the Pt. Barrow weather station, we derive and assess a proxy for estimating heat flux in the canyon for the summer time period, which is when most of the heat passes northward towards the basin. The average heat flux for 2010 was estimated to be 3.34 TW, which is as large as the previous record maximum in 2007. This amount of heat could melt 315,000 km2 of 1-meter thick ice, which likely contributed to significant summer sea ice retreat in the Pacific sector of the Arctic Ocean.
    Description: MI, TK, YF, KO and DS were supported by Green Network of Excellence Program (GRENE Program), Arctic Climate Change Research Project ‘Rapid Change of the Arctic Climate System and its Global Influences’ by Ministry of Education, Culture, Sports, Science and Technology Japan. RP was supported by grant ARC-1203906 from the US National Science Foundation. CA was supported by grant ARC-1023331 from the US National Science Foundation and by the Cooperative Institute for the North Atlantic Region (NOAA Cooperative AgreementNA09OAR4320129) with funds provided by the US National Oceanographic and Atmospheric Administration through an Interagency Agreement between the US Bureau of Ocean and Energy Management and the National Marine Mammal Laboratory. SV was supported by the Department of Fisheries and Oceans Canada. MI and TK were supported by the Japan Agency for Marine-Earth Science and Technology. MI, TK, YF and KO were supported by Grant no. 2014-23 from Joint Research Program of the Institute of Low Temperature Science, Hokkaido University. YF and KO were supported by grants-in-aid 20221001 for scientific research from the Ministry of Education, Culture, Sports, Science and Technology of Japan. JTM was supported by grant PLR-1041102 from the US National Science Foundation.
    Keywords: Polar oceanography ; Arctic Ocean ; Chukchi Sea ; Heat fluxes ; Volume transports ; Water properties
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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