2026-08-11T21:47:03Z https://oai.datacite.org/oai

doi:10.18160/3rzt-f12v 2026-04-10T07:24:25Z MVIY SND.ICOS

10.18160/3RZT-F12V Tuzson, Béla Béla Tuzson 0000-0001-7442-5405 Siegwolf, Patrick Patrick Siegwolf 0000-0001-9231-2252 Emmenegger, Lukas Lukas Emmenegger 0000-0002-9812-3986 ICOS ERIC - Carbon Portal 2026 CSV time series 13C-CO2 18O-CO2 ICOS Switzerland QCLAS atmospheric CO2 dry air mole fraction continuous time series quantum cascade laser stable isotopes Tuzson, Béla Béla Tuzson 0000-0001-7442-5405 Siegwolf, Patrick Patrick Siegwolf 0000-0001-9231-2252 Emmenegger, Lukas Lukas Emmenegger 0000-0002-9812-3986 2026-04-07 2025-07-01/2026-02-05 2026-04-07 2026-02-24 11676/5CTfzVgtoaIc-7okMhGaL9LN ICOS ATC time series 1.0 Creative Commons Attribution 4.0 International The dataset contains continuous, hourly-averaged CO₂ concentration values (in dry air mole fraction) and their stable isotopic composition (13C-CO₂ and 18O-CO₂), reported as delta values (in ‰), collected at the Jungfraujoch station in Switzerland. The measurements are obtained by quantum cascade laser absorption spectroscopy (QCLAS). Jungfraujoch (JFJ) 46.5475 7.9851 Swiss National Science Foundation Swiss Federal Laboratories for Materials Science and Technology Swiss State Secretariat for Education, Research and Innovation