Obspack CH4 time-series result from Centre de Recherches Atmosphériques (30.0 m)
2019-04-12–2026-03-31
11676/lUATgRtk2Sj0-FJZs0KTkbiC (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 Centre de Recherches Atmosphériques (30.0 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 CH4 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 CH4 product release are available at https://commons.datacite.org/doi.org/10.18160/7H4K-DBRP. 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).
Carbon Portal, Delmotte, M., Gheusi, F., Lopez, M., Ramonet, M. (2026). Obspack CH4 time-series result from Centre de Recherches Atmosphériques (30.0 m), 2019-04-12–2026-03-31, European ObsPack, https://hdl.handle.net/11676/lUATgRtk2Sj0-FJZs0KTkbiC
BibTex
@misc{https://hdl.handle.net/11676/lUATgRtk2Sj0-FJZs0KTkbiC,
author={Carbon Portal and Delmotte, Marc and Gheusi, François and Lopez, Morgan and Ramonet, Michel},
title={Obspack CH4 time-series result from Centre de Recherches Atmosphériques (30.0 m), 2019-04-12–2026-03-31},
year={2026},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/lUATgRtk2Sj0-FJZs0KTkbiC},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/lUATgRtk2Sj0-FJZs0KTkbiC}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Centre de Recherches Atmosphériques (30.0 m), 2019-04-12–2026-03-31 ID - 11676/lUATgRtk2Sj0-FJZs0KTkbiC PY - 2026 UR - https://hdl.handle.net/11676/lUATgRtk2Sj0-FJZs0KTkbiC PB - Carbon Portal AU - Carbon Portal AU - Delmotte, Marc AU - Gheusi, François AU - Lopez, Morgan AU - Ramonet, Michel KW - WMO X2004A KW - atmospheric dry air ch4 mole fraction ER -
ch4_cra_tower-insitu_188_30magl.nc
1 MB (1302374 bytes)
61104
2
Acquisition
2019-04-12 00:30:00
2026-03-31 23:30:00
30.0
Production
2026-08-06 21:04:52
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
2
0
Technical information
R, U, O
954013811b64d928f4f85259b3429391b882cc2e6bead99314f88b2a0d2ce125
lUATgRtk2Sj0+FJZs0KTkbiCzC5r6tmTFPiLKg0s4SU
Lat: 43.1298, Lon: 0.3692, Alt: 600.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series