Continuous δ13C-CH4 measurements in the atmosphere - data gathered at Mt. Cimone GAW/WMO Global Station (44.19°N, 10.70°E, 2165 m a.s.l.,Italy) in 2025

This dataset features continuous measurements of δ13C-CH4 at the "O. Vittori" observatory part of the GAW/WMO Global Station Mt. Cimone (GAW-ID: CMN) performed in 2025. Measurements are performed by a Cavity Ring Down Spectrometer Picarro G2201-i starting from March 2025. Data are reported as VPDB calibration scale but should be considered as provisional. Automated and manual quality assurance procedures have been applied to the dataset, including correction of the atmospheric pressure dependence. Data are averaged on a hourly basis.