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Atmospheric GHG isotope data product from Jungfraujoch (13.9 m)

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2025-07-01–2026-02-05
10.18160/3RZT-F12V (target, metadata)
11676/u0OnoW9UK2jOdDwMEBPQDkYq (link)

Generic greenhouse gas isotope tracer observational time series.

Intended to be used for datasets with non-ATC standard Flag values.

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).

For more information, please see the accompanying data description document https://hdl.handle.net/11676/5CTfzVgtoaIc-7okMhGaL9LN
Miscellaneous
Tuzson, B., Siegwolf, P., Emmenegger, L., 2026. Atmospheric GHG isotope data product from Jungfraujoch (13.9 m). https://doi.org/10.18160/3RZT-F12V
BibTex 
@misc{https://doi.org/10.18160/3rzt-f12v,
  doi = {10.18160/3RZT-F12V},
  url = {https://meta.icos-cp.eu/objects/u0OnoW9UK2jOdDwMEBPQDkYq},
  author = {Tuzson, Béla and Siegwolf, Patrick and Emmenegger, Lukas},
  keywords = {13C-CO2, 18O-CO2, ICOS Switzerland, QCLAS, atmospheric CO2 dry air mole fraction, continuous time series, quantum cascade laser, stable isotopes},
  title = {Atmospheric GHG isotope data product from Jungfraujoch (13.9 m)},
  publisher = {ICOS ERIC - Carbon Portal},
  year = {2026},
  copyright = {Creative Commons Attribution 4.0 International}
}
RIS 
TY  - DATA
T1  - Atmospheric GHG isotope data product from Jungfraujoch (13.9 m)
AU  - Tuzson, Béla
AU  - Siegwolf, Patrick
AU  - Emmenegger, Lukas
DO  - 10.18160/3RZT-F12V
UR  - https://meta.icos-cp.eu/objects/u0OnoW9UK2jOdDwMEBPQDkYq
KW  - 13C-CO2
KW  - 18O-CO2
KW  - ICOS Switzerland
KW  - QCLAS
KW  - atmospheric CO2 dry air mole fraction
KW  - continuous time series
KW  - quantum cascade laser
KW  - stable isotopes
PY  - 2026
PB  - ICOS ERIC - Carbon Portal
ER  -
QCLAS_JFJ_CO2_ISOTOPES_CONTINUOUS_20250701_20260205.csv
476 KB (487606 bytes)
5280
Atmospheric GHG isotope data product
2
Dataset description: CO2 stable isotope time series from Jungfraujoch (JFJ)
ICOS CCBY4 Data Licence

Acquisition

Jungfraujoch
2025-07-01 00:00:00
2026-02-05 23:00:00
13.9

Production

Patrick Siegwolf
Swiss Federal Laboratories for Materials Science and Technology
2026-02-24 13:30:00
Béla Tuzson, Patrick Siegwolf, Lukas Emmenegger

Previewable variables

Name Value type Unit Quantity kind Preview
TIMESTAMP time instant, UTC
co2 CO2 (dry air mole fraction) µmol mol-1 portion Preview
co2_stdev CO2 (dry air mole fraction) µmol mol-1 portion Preview
d13c δ13C-CO2 per mil ratio Preview
d13c_stdev standard deviation of δ13C-CO2 per mil ratio Preview
d18o δ18O-CO2 per mil ratio Preview
d18o_stdev δ18O-CO2 per mil ratio Preview

Statistics

1
32

Submission

Carbon Portal
2026-04-07 14:30:12
2026-04-07 14:30:11

Technical information

ICOS ATC time series
R, U, O
zip
bb43a7a16f542b68ce743c0c1013d00e462a4f433de71a84f9d37e836d23773b
u0OnoW9UK2jOdDwMEBPQDkYqT0M95xqE+dN+g20jdzs
Lat: 46.5475, Lon: 7.9851, Alt: 3571.8 m
Jungfraujoch
JSON • RDF/XML • RDF/Turtle • XML (ISO 19115-3:2016)
13C-CO2 18O-CO2 ICOS Switzerland QCLAS atmospheric CO2 dry air mole fraction continuous time series quantum cascade laser stable isotopes