Obspack CH4 time-series result from Centre de Recherches Atmosphériques (30.0 m)

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 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).

@misc{https://hdl.handle.net/11676/kQIpZzELOUNWh5TcAeMtPtOI,
  author={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/kQIpZzELOUNWh5TcAeMtPtOI},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/kQIpZzELOUNWh5TcAeMtPtOI}
}

TY - DATA
T1 - Obspack CH4 time-series result from Centre de Recherches Atmosphériques (30.0 m), 2019-04-12–2026-03-31
ID - 11676/kQIpZzELOUNWh5TcAeMtPtOI
PY - 2026
UR - https://hdl.handle.net/11676/kQIpZzELOUNWh5TcAeMtPtOI
PB - 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 (1294196 bytes)

61104

2

2019-04-12 00:30:00

2026-03-31 23:30:00

30.0

2026-08-26 06:56:53

2026-08-26 09:49:23

2026-08-26 09:49:21

R, U, O

91022967310b3943568794dc01e32d3ed388c5d213d4dc33afcf46b5b363b944

kQIpZzELOUNWh5TcAeMtPtOIxdIT1Nwzr89GtbNjuUQ