Bussmann, Ingeborg (2026): Dissolved methane concentration and diffusive flux near Sylt, North Sea in summer 2023 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995741 (DOI registration in progress)
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2026-06-30
Abstract:
In July 2023 a cruise with RV Mya_II took place to investigate if the dredging of sand off Sylt influences the atmospheric and dissolved methane concentrations. With the ship's system water temperature and salinity was recoreded, as well as the wind speed. Atmospheric concentrations were measured with a LICOR trace gas analyzer. Dissolved methane was determined via a degassing system connected to a greenhouse gas analyzer as online measurements. Theses relative concentrations were converted to concentrations with water samples analyzed with gas chromatography.
Supplement to:
Schmidt, Martina; Bussmann, Ingeborg; Reith, Sarah Johanna Ernestina; Palzer, Annika; Couret, Cedric; Keppler, Frank; Polag, Daniela; Sander, Lasse; Schroll, Moritz; Wietzel, Julia B (preprint): Assessing methane emissions from an offshore marine aggregate extraction site near Sylt, Eastern North Sea. https://doi.org/10.5194/egusphere-2025-4850
References:
Nightingale, Philip D; Malin, Gill; Law, Cliff S; Watson, Andrew J; Liss, Peter S; Liddicoat, Malcolm; Boutin, Jacqueline; Upstill-Goddard, Robert C (2000): In situ evaluation of air-sea gas exchange parameterizations using novel conservative and volatile tracers. Global Biogeochemical Cycles, 14(1), 373-387, https://doi.org/10.1029/1999GB900091
Striegl, Robert G; Dornblaser, Mark M; McDonald, C P; Rover, J A; Stets, E G (2012): Carbon dioxide and methane emissions from the Yukon River system. Global Biogeochemical Cycles, 26(4), 2012GB004306, https://doi.org/10.1029/2012GB004306
Wanninkhof, Rik (2014): Relationship between wind speed and gas exchange over the ocean revisited. Limnology and Oceanography-Methods, 12(6), 351-362, https://doi.org/10.4319/lom.2014.12.351
Wanninkhof, Rik; Asher, William E; Ho, David T; Sweeney, Colm; McGillis, W R (2009): Advances in Quantifying Air-Sea Gas Exchange and Environmental Forcing. Annual Review of Marine Science, 1(1), 213-244, https://doi.org/10.1146/annurev.marine.010908.163742
Additional metadata:
Device descriptions from ship measurement systems during RV MYA II Cruise in July 2023. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research - Biological Institute Helgoland, additional_information.rtf
Project(s):
Coverage:
Median Latitude: 54.949485 * Median Longitude: 8.295583 * South-bound Latitude: 54.887440 * West-bound Longitude: 8.144454 * North-bound Latitude: 55.059656 * East-bound Longitude: 8.464794
Date/Time Start: 2023-07-06T07:20:00 * Date/Time End: 2023-07-07T11:39:00
Event(s):
2023_Mya_II * Latitude Start: 55.016426 * Longitude Start: 8.439462 * Latitude End: 55.058343 * Longitude End: 8.424464 * Date/Time Start: 2023-07-06T07:20:00 * Date/Time End: 2023-07-07T11:39:00 * Campaign: MOSES_2023_Elbe-NorthSea_Marine_MYA (MOSES_2023_Elbe-NorthSea, Research Vessel Mya, Sternfahrt 10) * Basis: Mya II
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Bussmann, Ingeborg | Geocode | ||
| 2 | LATITUDE | Latitude | Bussmann, Ingeborg | Geocode | ||
| 3 | LONGITUDE | Longitude | Bussmann, Ingeborg | Geocode | ||
| 4 | Methane, dissolved | CH4 diss | nmol/l | Bussmann, Ingeborg | Ultraportable Greenhouse Gas Analyzer (UGGA), Los Gatos Research Inc., U-GGA-915-0011-0000-0000 (#3599) | |
| 5 | Methane, flux, diffusive | CH4 flux diff | µmol/m2/day | Bussmann, Ingeborg | ||
| 6 | Methane, dissolved, gas transfer velocity | k CH4 diss | m/day | Bussmann, Ingeborg | ||
| 7 | Methane, dissolved, equilibrium | CH4 diss eq | nmol/l | Bussmann, Ingeborg | FerryBox system | |
| 8 | Methane saturation | CH4 sat | % | Bussmann, Ingeborg |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
2182 data points
Download Data
View dataset as HTML (shows only first 2000 rows)