High precision atmospheric GHG and stable isotope measurements at The Villavicencio Tower (VLO)

This dataset presents high-precision atmospheric measurements of CO₂, CH₄, CO, N₂O, SF₆, H₂ and stable isotopes of CO₂ and CH_{4 ,} as well as O2/N2 and Ar/N2 at The Villavicencio Tower (VLO). Flasks were collected weekly at a height of 26 m around midday (12:00–14:00 local time) and analysed at the laboratories of the Max Planck Institute for Biogeochemistry (MPI-BGC).

The v1 version covers the time period 20 june 2023 to 11 march 2025. The file will be updated as new measurements become available.

Data for each gas/isotope is provided in a seperate .csv file. Each file includes metadata on top, after which data data is present by one row per sampling date, giving the date and time (UTC), the mean mole fraction or isotopic value of the flask replicates, the standard deviation across replicates (σ), a quality flag indicating whether the value failed the time-series anomaly test, and the number of flasks averaged (N). Further details on the data format and processing are given in Heimann et al. (2022).

Heimann, M., Jordan, A., Brand, W., Lavrič, J., Moossen, H., and Rothe, M.: The atmospheric flask sampling program of MPI-BGC Version 13, 2022, https://doi.org/10.17617/3.8r, 2022.