Publication Date:
2023-10-19
Description:
The dataset is about temporal variability of dissolved methane along the freshwater-sea continuum in northern Germany. Sensors were installed at fixed stations at in total three sites at different water depths. This dataset is from the station in Geesthacht (53.4112 N, 10.4032 E) at about 2 meter depth. The data was obtained between 14 April and 29 September 2021) in high frequency measurements (1 min) with a methane sensor from Kongsberg (4H Jena model CONTROS HydroC CH4,). Methane concentrations were calculated according to manufacturer's instructions. Data on temperature were provided by from Vattenfall, Kernkraftwerk Krümel, a salinity of 0.01 was assumed. Special thanks to the colleagues from Vattenfall for the logistic and technical support. For the quality control of the data a local range of 0.1 – 5000 nmol/L was set, a technical range for the pump power 2 – 8. Watt, a spike and gradient value of 1. For a more detailed description see the article cited in References.
Keywords:
2021_Geesthacht_CH4; Alfred-Wegener-Institute; DATE/TIME; dissolved methane; in situ data; MaGeCH; Methane, dissolved; Methane sensor, -4H- JENA engineering GmbH,
CONTROS HydroC® CH₄; Modular Observation Solutions for Earth Systems; MOSES
Type:
Dataset
Format:
text/tab-separated-values, 220976 data points
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