The ICOS stations are coordinated and run by the ICOS National Networks in 12 countries: Belgium, the Czech Republic, Denmark, Finland, France, Germany, Italy, the Netherlands, Norway, Sweden, Switzerland and the United Kingdom.
ICOS network consists of 134 measuring stations located in twelve countries in Europe. The number of stations varies between member countries from over twenty stations to less than five. The oldest operating stations have been collecting data for decades. However, all these stations were re-equipped to meet the high ICOS standards and some stations have been built from scratch for ICOS. Stations operate in three distinct domains: Atmosphere, Ecosystem and Ocean.
The ICOS stations are run and funded by national funding agencies, institutes and universities, demonstrating an impressive joint effort to enable climate change research.