The ICOS Atmosphere Thematic Centre has published the European Obspack, an extensive dataset including atmospheric observations of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) in Europe.
This dataset, part of the GlobalView Obspack V8, includes data from European ICOS atmospheric stations, including the historical measurements prior to ICOS, complemented with data from some additional non-ICOS stations.
The data for the 2025 release comes from altogether 69 stations in Europe. All concentrations are calibrated to the WMO mole fraction scales and quality controlled by either the station’s Principal Investigator or by ICOS. The dataset combined ICOS Level 1 near-real-time data, and final quality controlled ICOS Level 2 data.
The new release covers the period of 1972-2025 for CO2, 1984-2025 for CH4, and 1994-2025 for N2O, including final quality-controlled Level 2 ICOS data, release L2-2025.1.
The data is publicly accessible from the ICOS Carbon Portal. When using data in a scientific publication, data citation is required with DOI 10.18160/YRBF-FJNB
- Read more and access the data: https://meta.icos-cp.eu/collections/izsSq0-dp1jBJ266TiIBw8C-
- Read how to cite ICOS data: https://www.icos-cp.eu/how-to-cite