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Obspack CO2 time-series result from Ersa (40.0 m)

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2013-04-25–2026-03-31
11676/vB1TVPDI_dZH0YRG7sVHrRiQ (link)
This data file contains high accuracy European ObsPack observational timeseries in netCDF format of ambient mole fraction of CO2 in dry air collected at Ersa (40.0 m). The measurements were calibrated using the WMO GAW calibration scale WMO CO2 X2019. Included are (all whenever available) historical PI QCed data, ICOS Level 2 data, ICOS FastTrack data and ICOS NRT data. It is part of the CO2 European Obspack data product (version 12.0) and is intended for use in carbon cycle inverse modeling, model evaluation, and satellite validation studies. Metadata for the full CO2 product release are available at https://commons.datacite.org/doi.org/10.18160/05HT-73FW. Please also visit http://www.gml.noaa.gov/ccgg/obspack/ for more information. If you use these data in your research, please consider citing the full ObsPack release that this file is part of (https://commons.datacite.org/doi.org/10.18160/ERAF-JSPW).
European ObsPack
European Obspack compilation of atmospheric carbon dioxide data from ICOS and non-ICOS European stations for the period 1972-2026; obspack_co2_466_GVeu_v12.0_20260806
ICOS ObsPack compilation of atmospheric greenhouse gas data from Ersa (ERS) for the period 2013-2026
Carbon Portal, Delmotte, M., Lopez, D., Lopez, M., Philippon, C., Ramonet, M. (2026). Obspack CO2 time-series result from Ersa (40.0 m), 2013-04-25–2026-03-31, European ObsPack, https://hdl.handle.net/11676/vB1TVPDI_dZH0YRG7sVHrRiQ
BibTex 
@misc{https://hdl.handle.net/11676/vB1TVPDI_dZH0YRG7sVHrRiQ,
  author={Carbon Portal and Delmotte, Marc and Lopez, Dylan and Lopez, Morgan and Philippon, Carole and Ramonet, Michel},
  title={Obspack CO2 time-series result from Ersa (40.0 m), 2013-04-25–2026-03-31},
  year={2026},
  keywords={WMO CO2 X2019, atmospheric dry air co2 mole fraction},
  url={https://hdl.handle.net/11676/vB1TVPDI_dZH0YRG7sVHrRiQ},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/vB1TVPDI_dZH0YRG7sVHrRiQ}
}
RIS 
TY - DATA
T1 - Obspack CO2 time-series result from Ersa (40.0 m), 2013-04-25–2026-03-31
ID - 11676/vB1TVPDI_dZH0YRG7sVHrRiQ
PY - 2026
UR - https://hdl.handle.net/11676/vB1TVPDI_dZH0YRG7sVHrRiQ
PB - Carbon Portal
AU - Carbon Portal
AU - Delmotte, Marc
AU - Lopez, Dylan
AU - Lopez, Morgan
AU - Philippon, Carole
AU - Ramonet, Michel
KW - WMO CO2 X2019
KW - atmospheric dry air co2 mole fraction
ER -
View previous version
co2_ers_surface-insitu_11_40magl.nc
2 MB (1921222 bytes)
103772
Obspack CO2 time-series result
2
ICOS CCBY4 Data Licence

Acquisition

Ersa
2013-04-25 00:30:00
2026-03-31 23:30:00
40.0

Production

Carbon Portal
Carbon Portal
2026-08-06 20:45:27
Marc Delmotte, Dylan Lopez, Morgan Lopez, Carole Philippon, Michel Ramonet
ICOS_ATC_OBSPACK-Europe-L2-2026_ERS_40.0_CTS_CO2.zip

Previewable variables

Name Value type Unit Quantity kind Preview
time time instant, UTC
value CO2 (dry air mole fraction) mol mol-1 portion Preview
qc_flag quality flag
icos_datalevel data level (Obspack) natural number Preview
value_std_dev standard deviation of gas mole fraction a.u. portion Preview
icos_LTR ICOS mole fraction uncertainty metrics mol mol-1 portion Preview
icos_STTB ICOS mole fraction uncertainty metrics mol mol-1 portion Preview
icos_SMR ICOS mole fraction uncertainty metrics mol mol-1 portion Preview
nvalue number of points cardinal number Preview

Statistics

2
0

Submission

Carbon Portal
2026-08-06 22:28:09
2026-08-06 22:28:07

Technical information

NetCDF (time series)
R, U, O
plain file
bc1d5354f0c8fdd647d18446eec547ad18901c6eaf056329d606b4223acca344
vB1TVPDI/dZH0YRG7sVHrRiQHG6vBWMp1ga0IjrMo0Q
Lat: 42.9692, Lon: 9.3801, Alt: 533.0 m
Ersa
JSON • RDF/XML • RDF/Turtle • XML (ISO 19115-3:2016)
CO2 ICOS Obspack WMO CO2 X2019 atmospheric dry air co2 mole fraction time series