Description: In January 2024 a river flood by the Elbe and Weser resulted in very high discharge of freshwater into the German Bight. To follow this river, plume the RV Mya II cruised from Sylt and between Helgoland, Cuxhaven, Büsum. All instruments were set up in the MOSES laboratory container. Standard hydrographic parameters were determined with a pocket ferrybox running with ship's surface water supply. In addition, dissolved methane was determined continuously. We used a degassing unit which was using surface water from the ship's water supply. The gas mixture was subsequently analysed 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. Atmospheric methane concentrations were obtained from the ICOS-station Helgoland. Wind speed was obtained from the ships meteorological system. The diffusive flux was calculated as outlined in the additional meta data description.
Global identifier:
Doi(
"10.1594/PANGAEA.987470",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"ALTITUDE",
"Chlorophyll a",
"Chlorophyll a, 95% confidence interval",
"DATE/TIME",
"DEPTH, water",
"LATITUDE",
"LONGITUDE",
"Methane, dissolved",
"Methane, dissolved, 95% confidence interval",
"Methane, dry air",
"Methane, flux, diffusive",
"Name",
"Oxygen saturation",
"Oxygen saturation, 95% confidence interval",
"Principal investigator",
"Salinity",
"Salinity, 95% confidence interval",
"Temperature, water",
"Temperature, water, 95% confidence interval",
"Turbidity (Formazin Turbidity Unit)",
"Turbidity (Formazin Turbidity Unit), 95% confidence interval",
"Wind speed",
"pH",
"pH, 95% confidence interval",
],
methods: [
"Calculated",
"Calculated according to Wanninkhof et al., 2009 and Nightingale et al., 2000",
"Fluorometer, Seapoint Sensors inc., SCF",
"Oxygen optode, Aanderaa, Oxygen optode 4835",
"Thermosalinograph, Sea Bird Scientific, SBE45 MicroTSG",
"Turbidity meter, Seapoint Sensors inc., STM",
"Ultraportable Greenhouse Gas Analyzer (UGGA), Los Gatos Research Inc., U-GGA-915-0011-0000-0000 (#3599)",
"ph sensor, Sensortechnik Meinsberg, EGA150",
],
},
)
Origins: /Wissenschaft/Helmholtz-Gemeinschaft /Wissenschaft/PANGAEA
Tags: Windgeschwindigkeit ? Methangehalt ? Fluss ? Hochwasserabfluss ? Wassertemperatur ? Elbe ? Helgoland ? Geografische Koordinaten ? Methan ? Süßwasser ? Metadaten ? Salzgehalt ? Oberflächengewässer ? Schiff ? Wasserprobe ? Wasserversorgung ? Meeresgewässer ? Deutsche Bucht ? Treibhausgas ? Nordsee ? Alfred-Wegener-Institute ? MOSES ?
Region: German Democratic Republic
Bounding boxes: 8.02369° .. 8.83956° x 53.87459° .. 55.0599° 12.51559° .. 12.51559° x 52.19498° .. 52.19498°
License: cc-by/4.0
Data access requires registration: click here for further informationLanguage: Englisch/English
Modified: 2025-11-21
Time ranges: 2024-01-16 - 2024-01-18
Accessed 4 times.