Obspack CH4 time-series result from Observatoire pérenne de l'environnement (10.0 m)
2011-04-21–2026-08-24
11676/G1RSS5cIgiY1g5km2SwhPFkT (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 (10.0 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 a release of the CH4 European Obspack data product (version 12.1), 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/K54N-TNWH. 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/MD10-E1BJ).
Ramonet, M., Conil, S., Delmotte, M., Laurent, O., Lopez, M., Helle, J., Langrene, L. (2026). Obspack CH4 time-series result from Observatoire pérenne de l'environnement (10.0 m), 2011-04-21–2026-08-24, European ObsPack, https://hdl.handle.net/11676/G1RSS5cIgiY1g5km2SwhPFkT
BibTex
@misc{https://hdl.handle.net/11676/G1RSS5cIgiY1g5km2SwhPFkT,
author={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 (10.0 m), 2011-04-21–2026-08-24},
year={2026},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/G1RSS5cIgiY1g5km2SwhPFkT},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/G1RSS5cIgiY1g5km2SwhPFkT}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Observatoire pérenne de l'environnement (10.0 m), 2011-04-21–2026-08-24 ID - 11676/G1RSS5cIgiY1g5km2SwhPFkT PY - 2026 UR - https://hdl.handle.net/11676/G1RSS5cIgiY1g5km2SwhPFkT PB - Carbon Portal 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_10magl.nc
3 MB (2654723 bytes)
134040
2
Acquisition
2011-04-21 00:30:00
2026-08-24 23:30:00
10.0
Production
2026-08-26 07:04:34
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 |
| nvalue | number of points | cardinal number | Preview |
Statistics
1
0
Technical information
R, U, O
1b54524b9708822635839926d92c213c5913f7db0afd0ddfd3b5ac4f95fed715
G1RSS5cIgiY1g5km2SwhPFkT99sK/Q3f07WsT5X+1xU
Lat: 48.5619, Lon: 5.5036, Alt: 390.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series