Obspack CH4 time-series result from Puy de Dôme (10.0 m)
2011-04-18–2026-08-23
11676/R9M9cL48ldv5X10bCET2IBcD (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 Puy de Dôme (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).
Colomb, A., Ramonet, M., Yver-Kwok, C., Delmotte, M., Lopez, M., Pichon, J. (2026). Obspack CH4 time-series result from Puy de Dôme (10.0 m), 2011-04-18–2026-08-23, European ObsPack, https://hdl.handle.net/11676/R9M9cL48ldv5X10bCET2IBcD
BibTex
@misc{https://hdl.handle.net/11676/R9M9cL48ldv5X10bCET2IBcD,
author={Colomb, Aurélie and Ramonet, Michel and Yver-Kwok, Camille and Delmotte, Marc and Lopez, Morgan and Pichon, Jean-Marc},
title={Obspack CH4 time-series result from Puy de Dôme (10.0 m), 2011-04-18–2026-08-23},
year={2026},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/R9M9cL48ldv5X10bCET2IBcD},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/R9M9cL48ldv5X10bCET2IBcD}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Puy de Dôme (10.0 m), 2011-04-18–2026-08-23 ID - 11676/R9M9cL48ldv5X10bCET2IBcD PY - 2026 UR - https://hdl.handle.net/11676/R9M9cL48ldv5X10bCET2IBcD PB - Carbon Portal AU - Colomb, Aurélie AU - Ramonet, Michel AU - Yver-Kwok, Camille AU - Delmotte, Marc AU - Lopez, Morgan AU - Pichon, Jean-Marc KW - WMO X2004A KW - atmospheric dry air ch4 mole fraction ER -
ch4_puy_surface-insitu_11_10magl.nc
2 MB (2565381 bytes)
134512
2
Acquisition
2011-04-18 00:30:00
2026-08-23 23:30:00
10.0
Production
2026-08-26 07:05:18
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
47d33d70be3c95dbf95f5d1b0844f6201703699c1b168e57ef28e598e570a1c1
R9M9cL48ldv5X10bCET2IBcDaZwbFo5X7yjlmOVwocE
Lat: 45.7719, Lon: 2.9658, Alt: 1465.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series