Dataset of: CO2 and H2O isotope exchange and flux partitioning in Amazonia. Described in: Moonen et al. 2026 (Biogeosciences)

This dataset contains a subset of the measurements performed during the comprehensive CloudRoots-Amazon22 field campaign, which took place at the ATTO site new Manaus, Brazil. The data included form the backbone of the isotope based net flux partitioning applied in the manuscript "CO2 and H2O isotope exchange and flux partitioning in Amazonia", submitted to Biogeosciences. Four .csv files are included, representing the soil temperature and humidity, the co2 isotopic composition of the atmospheric samples, and the isotopic flux data from the H2O (Picarro L2130-i) and CO2 (Aerodyne TILDAS-CS) isotopic laser spectrometers used during the campaign. The flux data have been preproces and covaried with 3D anemometer data, gathered with a Campbell CSAT3 from Campbell scientific. The labels were chosen to be in line with the accompanying manuscript, with as clear as possible units. Other ancilarry variables (atmospheric state variables, plant physiology, soil and leaf isotopic samples) have been taken from other studies based on the same CloudRoots-Amazon22 field campaign. The key studies are shared below. Important literature references;Vilà-Guerau de Arellano, J., O. K. Hartogensis, et al. (2024), “CloudRoots-Amazon22: Integrating Clouds with Photosynthesis by Crossing Scales”, Bulletin of the American Meteorological Society, vol. 105, no. 7, E1275–E1302.Moonen, R. P. J., G. A. Adnew, J. Vilà-Guerau de Arellano, et al. (2025), “Amazon rainforest ecosystem exchange of CO2 and H2O through turbulent understory ejections”, Atmospheric Chemistry and Physics, vol. 25, no. 19, pp. 12197–12212.González-Armas, R., D. Rikkers, et al. (2025), “Daytime water and CO2 exchange within and above the Amazon rainforest”, Agricultural and Forest Meteorology, vol. 372.