Ecosystem stations provide primarily data on greenhouse gas concentrations and fluxes, as well as latent and sensible heat fluxes. In addition, several meteorological and soil parameters are measured. Furthermore, data on other ecosystem parameters are collected periodically. Within ICOS Sweden there are six Ecosystem stations:
Abisko-Stordalen, Degerö, Hyltemossa, Mycklemossen, Norunda and Svartberget.
Lanna is a former ecosystem station but is no longer active as an ICOS station.