TCCON is a network of ground-based Fourier Transform Spectrometers recording direct solar spectra in the near-infrared spectral region. From these spectra, accurate and precise column-averaged abundance of CO2, CH4, N2O, HF, CO, H2O, and HDO are retrieved.
TCCON Data Archive is covered by Thomson Reuters Data Citation Index.
The TCCON is closely affiliated with the Network for the Detection of Atmospheric Composition Change Infrared Working Group (NDACC-IRWG), that produces vertical profiles of the concentrations of many of the same gases and several others. For more information see the NDACC website: https://www2.acom.ucar.edu/irwg