ICOS

Obspack CH4 time-series result from Observatoire pérenne de l'environnement (50.0 m)

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2011-04-22–2025-10-02
11676/7lg1nEBwrXqGPcbvC2dVkTcu (link)
This data file contains high accuracy European ObsPack observational timeseries in netCDF format of ambient mole fraction of ch4 in dry air collected at Observatoire pérenne de l'environnement (50.0 m). The measurements were calibrated using the WMO GAW calibration scale WMO X2004A. 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 2025.3 FastTrack update of the Globalview EU CH4 data product and is intended for use in carbon cycle inverse modeling, model evaluation, and satellite validation studies. Metadata for the full ch4 product release are available at https://commons.datacite.org/doi.org/10.18160/3TB5-D6TM. 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/10.18160/46ST-DEVK).
ICOS RI, Ramonet, M., Conil, S., Delmotte, M., Laurent, O., Lopez, M., Helle, J., Langrene, L. (2025). Obspack CH4 time-series result from Observatoire pérenne de l'environnement (50.0 m), 2011-04-22–2025-10-02, European ObsPack, https://hdl.handle.net/11676/7lg1nEBwrXqGPcbvC2dVkTcu
BibTex
@misc{https://hdl.handle.net/11676/7lg1nEBwrXqGPcbvC2dVkTcu,
  author={ICOS RI and Ramonet, Michel and Conil, Sébastien and Delmotte, Marc and Laurent, Olivier and Lopez, Morgan and Helle, Julie and Langrene, Laurent},
  title={Obspack CH4 time-series result from Observatoire pérenne de l'environnement (50.0 m), 2011-04-22–2025-10-02},
  year={2025},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/7lg1nEBwrXqGPcbvC2dVkTcu},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/7lg1nEBwrXqGPcbvC2dVkTcu}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Observatoire pérenne de l'environnement (50.0 m), 2011-04-22–2025-10-02
ID - 11676/7lg1nEBwrXqGPcbvC2dVkTcu
PY - 2025
UR - https://hdl.handle.net/11676/7lg1nEBwrXqGPcbvC2dVkTcu
PB - Carbon Portal
AU - ICOS RI
AU - Ramonet, Michel
AU - Conil, Sébastien
AU - Delmotte, Marc
AU - Laurent, Olivier
AU - Lopez, Morgan
AU - Helle, Julie
AU - Langrene, Laurent
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 
ch4_ope_tower-insitu_469_allvalid-50magl.nc
2 MB (2367358 bytes)
113353
2

Acquisition

2011-04-22 04:30:00
2025-10-02 23:30:00
50.0

Production

2025-10-03 11:14:29

Previewable variables

Name Value type Unit Quantity kind Preview
time time instant, UTC
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
value CH4 (dry air mole fraction) mol mol-1 portion Preview

Statistics

5
0

Submission

2025-10-03 12:04:42
2025-10-03 12:04:35

Technical information

R, U, O
ee58359c4070ad7a863dc6ef0b675591372ed664a25e920a531d152942972c96
7lg1nEBwrXqGPcbvC2dVkTcu1mSiXpIKUx0VKUKXLJY
Lat: 48.5619, Lon: 5.5036, Alt: 390.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series