de.pangaea.dataset964690 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-04-30T21:14:33Z https://doi.pangaea.de/10.1594/PANGAEA.964690 2024-12-04T11:53:43 publication https://doi.org/10.1594/PANGAEA.964690 Damm, Ellen

ellen.damm@awi.de

https://orcid.org/0000-0002-1487-1283 information author Sellmaier, Samuel

samuel.sellmaier@awi.de

author Björk, Göran

goran.bjork@marine.gu.se

author Abrahamsson, Katarina

katarina.abrahamsson@gu.se

author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital Our sampling took place on the RV Skagerak on 3-5 October 2022 . In total, 20 stations Northeast of the island Bornholm were covered. 16 sites were located within the methane plume formed by the intense methane bubbling in the week after the explosion, but outside the 7 NM wide security circle around the leaks. In addition, we included 4 sites on the track to the explosion site to detect natural background concentrations.
 Profiles of salinity and temperature in the water column were recorded by a Sea-Bird SBE911, a conductivity–temperature–depth (CTD) system. Water samples for the analysis of concentrations of dissolved methane and 𝜹13C-CH4 values were taken from up to 10 discrete water depths across the entire water from Niskin bottles mounted on a rosette sampler. The deepest bottles were closed at about 1–2 m above the sea floor. The selection of water sampling depths was determined taking the thermocline and halocline depths into consideration.
 Sampling procedure was performed as follows: Seawater from the rosette were filled in 500 ml glass vials, sealed with rubber stoppers and crimped with aluminum caps. Care was taken to avoid any bubbles. A headspace was created by injecting 20 ml hydrocarbon free synthetic air while at the same time water was pushed out via a second needle to balance the pressure. When equilibrated, a subsample was removed with a gas tight syringe and injected to the SSIM (Small Sample Isotope Module) coupled to a Picarro G2132-i cavity ring-down spectrometer. For calibration, we used standard gas mixtures with different concentrations (Fa. Linde), and standard gas mixtures with isotopic ratios of -25 ‰ vs. VPDB, -45 ‰ vs. VPDB and 69 ‰ vs. VPDB (Fa Airgas). Considering the complete sampling procedure, the overall total uncertainty was < 5% estimated on duplicates. The calculation of the dissolved methane concentration followed Wiesenburg and Guinasso (1979). completed Sellmaier, Samuel

samuel.sellmaier@awi.de

principalInvestigator Björk, Göran

goran.bjork@marine.gu.se

principalInvestigator Damm, Ellen

ellen.damm@awi.de

https://orcid.org/0000-0002-1487-1283 information principalInvestigator Abrahamsson, Katarina

katarina.abrahamsson@gu.se

principalInvestigator Baltic Sea Methane concentration Methane isotopy Methane leakage theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 14.31952 15.95782 55.20766 55.76008 2022-10-03T03:57:12 2022-10-05T13:45:49 5.33 76.41 Event label thematicClassification Cruise/expedition thematicClassification Station label thematicClassification Cast number thematicClassification DATE/TIME thematicClassification LATITUDE thematicClassification LONGITUDE thematicClassification Bottle number thematicClassification Identification thematicClassification Pressure, water physicalMeasurement CTD, Sea-Bird, SBE 911 dbar dbar DEPTH, water physicalMeasurement CTD, Sea-Bird, SBE 911 m m Temperature, water physicalMeasurement CTD, Sea-Bird, SBE 911 °C °C Salinity thematicClassification CTD, Sea-Bird, SBE 911 Oxygen physicalMeasurement CTD, Sea-Bird, SBE 911 µmol/l µmol/l Fluorescence physicalMeasurement CTD, Sea-Bird, SBE 911 mg/m**3 mg/m**3 Turbidity (Formazin nephelometric unit) physicalMeasurement CTD, Sea-Bird, SBE 911 FNU FNU Transmission of light physicalMeasurement CTD, Sea-Bird, SBE 911 % % Methane physicalMeasurement Cavity Ring-Down Spectrometer (CRDS), PICARRO, G2132-i nmol/l nmol/l Methane, natural logarithm physicalMeasurement Cavity Ring-Down Spectrometer (CRDS), PICARRO, G2132-i nmol nmol Methane solubility concentration physicalMeasurement Cavity Ring-Down Spectrometer (CRDS), PICARRO, G2132-i nmol/l nmol/l Methane saturation physicalMeasurement Cavity Ring-Down Spectrometer (CRDS), PICARRO, G2132-i % % δ13C, methane physicalMeasurement Cavity Ring-Down Spectrometer (CRDS), PICARRO, G2132-i ‰ PDB ‰ PDB pH thematicClassification Spectrophotometry, CONTROS HydroFIA pH text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.964690?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: NORDEX_1-1 * LATITUDE START: 55.207660 * LONGITUDE START: 14.319520 * LATITUDE END: 55.207660 * LONGITUDE END: 14.319520 * DATE/TIME START: 2022-10-03T03:57:12 * DATE/TIME END: 2022-10-03T04:03:00 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-03T03:57:12 EVENT LABEL: NORDEX_2-1 * LATITUDE START: 55.372840 * LONGITUDE START: 14.549140 * LATITUDE END: 55.372840 * LONGITUDE END: 14.549140 * DATE/TIME START: 2022-10-03T07:08:26 * DATE/TIME END: 2022-10-03T07:17:15 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-03T07:08:26 EVENT LABEL: NORDEX_3-1 * LATITUDE START: 55.534540 * LONGITUDE START: 14.793760 * LATITUDE END: 55.534540 * LONGITUDE END: 14.793760 * DATE/TIME START: 2022-10-03T09:09:59 * DATE/TIME END: 2022-10-03T09:21:36 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-03T09:09:59 EVENT LABEL: NORDEX_4-1 * LATITUDE START: 55.695320 * LONGITUDE START: 15.039940 * LATITUDE END: 55.695320 * LONGITUDE END: 15.039940 * DATE/TIME START: 2022-10-03T11:19:18 * DATE/TIME END: 2022-10-03T11:30:33 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-03T11:19:18 EVENT LABEL: NORDEX_5-1 * LATITUDE START: 55.652780 * LONGITUDE START: 15.282300 * LATITUDE END: 55.652780 * LONGITUDE END: 15.282300 * DATE/TIME START: 2022-10-03T13:45:07 * DATE/TIME END: 2022-10-03T13:55:10 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-03T13:45:07 EVENT LABEL: NORDEX_6-1 * LATITUDE START: 55.607180 * LONGITUDE START: 15.537820 * LATITUDE END: 55.607180 * LONGITUDE END: 15.537820 * DATE/TIME START: 2022-10-03T15:50:52 * DATE/TIME END: 2022-10-03T15:58:09 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-03T15:50:52 EVENT LABEL: NORDEX_7-1 * LATITUDE START: 55.677980 * LONGITUDE START: 15.743360 * LATITUDE END: 55.677980 * LONGITUDE END: 15.743360 * DATE/TIME START: 2022-10-03T18:26:52 * DATE/TIME END: 2022-10-03T18:34:18 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-03T18:26:52 EVENT LABEL: NORDEX_8-1 * LATITUDE START: 55.529860 * LONGITUDE START: 15.957820 * LATITUDE END: 55.529860 * LONGITUDE END: 15.957820 * DATE/TIME START: 2022-10-04T04:07:59 * DATE/TIME END: 2022-10-04T04:22:57 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T04:07:59 EVENT LABEL: NORDEX_9-1 * LATITUDE START: 55.627000 * LONGITUDE START: 15.905160 * LATITUDE END: 55.627000 * LONGITUDE END: 15.905160 * DATE/TIME START: 2022-10-04T06:58:31 * DATE/TIME END: 2022-10-04T07:12:10 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T06:58:31 EVENT LABEL: NORDEX_10-1 * LATITUDE START: 55.659840 * LONGITUDE START: 15.670780 * LATITUDE END: 55.659840 * LONGITUDE END: 15.670780 * DATE/TIME START: 2022-10-04T09:08:04 * DATE/TIME END: 2022-10-04T09:19:52 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T09:08:04 EVENT LABEL: NORDEX_11-1 * LATITUDE START: 55.593500 * LONGITUDE START: 15.546980 * LATITUDE END: 55.593500 * LONGITUDE END: 15.546980 * DATE/TIME START: 2022-10-04T11:25:30 * DATE/TIME END: 2022-10-04T11:40:44 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T11:25:30 EVENT LABEL: NORDEX_12-1 * LATITUDE START: 55.676560 * LONGITUDE START: 15.596280 * LATITUDE END: 55.676560 * LONGITUDE END: 15.596280 * DATE/TIME START: 2022-10-04T13:15:13 * DATE/TIME END: 2022-10-04T13:25:08 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T13:15:13 EVENT LABEL: NORDEX_13-1 * LATITUDE START: 55.677300 * LONGITUDE START: 15.743300 * LATITUDE END: 55.677300 * LONGITUDE END: 15.743300 * DATE/TIME START: 2022-10-04T14:57:27 * DATE/TIME END: 2022-10-04T15:09:03 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T14:57:27 EVENT LABEL: NORDEX_14-1 * LATITUDE START: 55.676580 * LONGITUDE START: 15.889700 * LATITUDE END: 55.676580 * LONGITUDE END: 15.889700 * DATE/TIME START: 2022-10-04T17:33:57 * DATE/TIME END: 2022-10-04T17:41:21 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T17:33:57 EVENT LABEL: NORDEX_15-1 * LATITUDE START: 55.760080 * LONGITUDE START: 15.744840 * LATITUDE END: 55.760080 * LONGITUDE END: 15.744840 * DATE/TIME START: 2022-10-04T19:44:45 * DATE/TIME END: 2022-10-04T19:53:16 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-04T19:44:45 EVENT LABEL: NORDEX_16-2 * LATITUDE START: 55.655200 * LONGITUDE START: 15.667720 * LATITUDE END: 55.655200 * LONGITUDE END: 15.667720 * DATE/TIME START: 2022-10-05T05:06:21 * DATE/TIME END: 2022-10-05T05:16:24 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-05T05:06:21 EVENT LABEL: NORDEX_17-1 * LATITUDE START: 55.656880 * LONGITUDE START: 15.517840 * LATITUDE END: 55.656880 * LONGITUDE END: 15.517840 * DATE/TIME START: 2022-10-05T07:31:34 * DATE/TIME END: 2022-10-05T07:45:10 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-05T07:31:34 EVENT LABEL: NORDEX_18-1 * LATITUDE START: 55.607460 * LONGITUDE START: 15.445680 * LATITUDE END: 55.607460 * LONGITUDE END: 15.445680 * DATE/TIME START: 2022-10-05T09:04:23 * DATE/TIME END: 2022-10-05T09:13:37 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-05T09:04:23 EVENT LABEL: NORDEX_19-1 * LATITUDE START: 55.636240 * LONGITUDE START: 15.309100 * LATITUDE END: 55.636240 * LONGITUDE END: 15.309100 * DATE/TIME START: 2022-10-05T11:28:15 * DATE/TIME END: 2022-10-05T11:43:21 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-05T11:28:15 EVENT LABEL: NORDEX_20-1 * LATITUDE START: 55.700340 * LONGITUDE START: 15.214000 * LATITUDE END: 55.700340 * LONGITUDE END: 15.214000 * DATE/TIME START: 2022-10-05T13:36:44 * DATE/TIME END: 2022-10-05T13:45:49 * CAMPAIGN: NORDEX * BASIS: Skagerak * METHOD/DEVICE: CTD/Rosette 2022-10-05T13:36:44 Related to 2024-01-01 publication https://doi.org/10.1038/s41598-024-63449-2 Abrahamsson, Katarina

katarina.abrahamsson@gu.se

author Damm, Ellen

ellen.damm@awi.de

https://orcid.org/0000-0002-1487-1283 information author Björk, Göran

goran.bjork@marine.gu.se

author Bunse, Carina

carina.bunse@uol.de

author Sellmaier, Samuel

samuel.sellmaier@awi.de

author Broström, Göran author Assmann, Volkmar author Dumitrascu, Adela

Adela.Dumitrascu@mmt.se

author Maciute, Adele author Olofsson, Niten author Pourdanandeh, Milad author documentDigital Scientific Reports 14(1) 12848 Related to 2024-01-01 publication https://doi.org/10.1594/PANGAEA.964676 Sellmaier, Samuel

samuel.sellmaier@awi.de

author Damm, Ellen

ellen.damm@awi.de

https://orcid.org/0000-0002-1487-1283 information author Abrahamsson, Katarina

katarina.abrahamsson@gu.se

author documentDigital References 1979-01-01 publication https://doi.org/10.1021/je60083a006 Wiesenburg, Denis A author Guinasso Jr., Norman L author documentDigital Journal of Chemical and Engineering Data 24(4) 356-360