WOUDC provides discovery and access to a global archive of ground-based ozone and ultraviolet radiation data.
TCCON Data Archive
The TCCON archive provides records from ground-based spectrometers measuring atmospheric gas abundances.
About TCCON Data Archive
TCCON Data Archive publishes records from the Total Carbon Column Observing Network, a group of ground-based Fourier Transform Spectrometers that record direct solar spectra in the near infrared. Column-averaged abundances of CO2, CH4, N2O, HF, CO, H2O and HDO are retrieved from those spectra; column averaging kernels and a priori profiles are included in the files. Data are in netCDF format and become publicly available no later than one year after the spectra are recorded, though many sites release earlier.
The archive also offers several retrieval versions (GGG2020, GGG2014, GGG2012, GGG2009) with supporting reports, downloadable GGG2020 linelists, a stand-alone program for producing a priori profiles where no TCCON measurements exist, and a JSON list of current site locations. A citation tool generates Bibtex entries for data and sites. Citation and data use requirements are stated in the license attached to each record and should be reviewed before downloading. A separate login area is provided for TCCON Partners.
Key features
- Column-averaged CO2, CH4, N2O, HF, CO, H2O and HDO retrievals
- netCDF files including column averaging kernels and a priori profiles
- Retrieval versions: GGG2020, GGG2014, GGG2012 and GGG2009
- Downloadable GGG2020 solar and telluric Voigt/non-Voigt linelists
- JSON file listing current TCCON site locations
- Stand-alone program for a priori profiles at non-TCCON locations
Best for: Atmospheric and climate researchers who need column-averaged greenhouse gas and trace gas measurements from ground-based spectrometer sites.
Good for
- Retrieval products include column averaging kernels and a priori profiles
- Multiple retrieval versions with accompanying technical reports
- Public netCDF release no later than one year after spectra are recorded
Watch out for
- A separate login area is reserved for TCCON Partners
- Citation and data use terms vary by record and must be reviewed before download
- Site records differ in coverage, with some series ending years ago
TCCON Data Archive at a glance
- Website
- tccondata.org
- Category
- Research & Data › Open Data & Datasets
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
TCCON Data Archive alternatives
Tools and sites you could use instead, ranked by how closely they match.
Protected Planet provides data on protected areas and conservation measures, with global statistics updated from submitted records.
The Canadian Tides and Water Levels Data Archive provides records of tides and water levels across Canada.
Aperta is a Turkish open archive with recently added research records and publications.
Peek is Kyoto University’s digital archive, with collections including photographs, field notes, films, and records.
Materials Cloud Archive lets visitors browse records linked to materials science applications and tools.
Popular in Open Data & Datasets
Well-known listings from the same topic.
data.worlddata.worldNASA APIapi.nasa.govCosmoSimcosmosim.orgdata.meudon.frdata.meudon.frESS-DIVEess-dive.lbl.govState of Hawaiidata.hawaii.gov
TCCON Data Archive FAQ
When does TCCON data become publicly available?
Data are publicly available no later than one year after the spectra are recorded; many sites release their data earlier.
What format are the data files in?
Data are in netCDF format, and the files include column averaging kernels and a priori profiles.
How should TCCON data be cited?
Citation and data use requirements are included in the license associated with each record. A tool is available to generate citations for TCCON data and sites in Bibtex format.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.