Dissolved methane, diffusive methane flux and underway oceanography of Stern 2 cruises in June 2019, in the southern German Bight with Elbe and Weser Estuary
2021
Bussmann, Ingeborg | Brix, Holger | Flöser, Götz | Ködel, Uta | Fischer, Philipp
On 25 and 26 of June in 2019 transects between Cuxhaven and Bremerhaven towards Helgoland were performed with the RV Prandtl and Uthörn. Basic hydrographic parameters were measured with two ferry boxes using the ships water supply. Data were saved once per minute. Dissolved methane was determined continuously. We used a degassing unit which was using surface water from the ship's water supply in an overflowing bucket. The gas mixture was subsequently analyzed with a Greenhouse Gas Analyzer from LosGatos. Conversion to methane concentration was performed with water samples, from which the methane content was determined with gas chromatography.
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