Decade-long Observations of Hydrogen Soil Uptake and Traffic Emissions in a Temperate Suburban Environment (Gif-sur-Yvette, France)

This dataset contains the raw atmospheric measurements of hydrogen (H₂), carbon monoxide (CO), and radon-222 (²²²Rn) that were used in the study “Decade-long Observations of Hydrogen Soil Uptake and Traffic Emissions in a Temperate Suburban Environment (Gif-sur-Yvette, France)”. The observations were collected at the suburban measurement site in Gif-sur-Yvette, France, and span more than a decade of continuous monitoring. The dataset includes high-resolution raw concentration data for H₂ and CO, as well as raw radon-222 measurements used to characterize nocturnal boundary layer dynamics and to support flux calculations. The radon data require correction following the methodology described in the associated publication, and only measurements flagged as valid (“O”) were used in the analysis presented in the study. In addition to the raw trace gas measurements, this repository provides the calculated hydrogen soil uptake fluxes and corresponding deposition velocities derived from nocturnal inversion analyses. Uncertainties in the calculated fluxes were determined using Gaussian error propagation. The dataset further includes both uncorrected and corrected H₂/CO emission ratios, along with their respective uncertainties derived from linear regression and propagated error analysis. Together, these files provide the full observational basis for reproducing the flux calculations, emission ratio analyses, and long-term variability assessments presented in the study. Users are encouraged to consult the publication for detailed methodological descriptions, data correction procedures, and interpretation guidelines before performing quantitative analyses with the dataset.