ICOS

Obspack CH4 time-series result from Saclay (100.0 m)

Download
2015-07-08–2025-08-17
11676/bxjqNK1PwzWXlV60tyxh2zpE (link)
Carbon Portal, Ramonet, M., Kazan, V., Delmotte, M., Lopez, M., Fuente-Lastra, M., Legendre, V., Lopez, D., Mandrick, Z., Rigouleau, L. (2025). Obspack CH4 time-series result from Saclay (100.0 m), 2015-07-08–2025-08-17, European ObsPack, https://hdl.handle.net/11676/bxjqNK1PwzWXlV60tyxh2zpE
BibTex
@misc{https://hdl.handle.net/11676/bxjqNK1PwzWXlV60tyxh2zpE,
  author={Carbon Portal and Ramonet, Michel and Kazan, Victor and Delmotte, Marc and Lopez, Morgan and Fuente-Lastra, Marta and Legendre, Virgile and Lopez, Dylan and Mandrick, Zineb and Rigouleau, Louis-Jeremy},
  title={Obspack CH4 time-series result from Saclay (100.0 m), 2015-07-08–2025-08-17},
  year={2025},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/bxjqNK1PwzWXlV60tyxh2zpE},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/bxjqNK1PwzWXlV60tyxh2zpE}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Saclay (100.0 m), 2015-07-08–2025-08-17
ID - 11676/bxjqNK1PwzWXlV60tyxh2zpE
PY - 2025
UR - https://hdl.handle.net/11676/bxjqNK1PwzWXlV60tyxh2zpE
PB - Carbon Portal
AU - Carbon Portal
AU - Ramonet, Michel
AU - Kazan, Victor
AU - Delmotte, Marc
AU - Lopez, Morgan
AU - Fuente-Lastra, Marta
AU - Legendre, Virgile
AU - Lopez, Dylan
AU - Mandrick, Zineb
AU - Rigouleau, Louis-Jeremy
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 
ch4_sac_tower-insitu_11_allvalid-100magl.nc
2 MB (1660362 bytes)
86309
2

Acquisition

2015-07-08 16:30:00
2025-08-17 23:30:00
100.0

Production

2025-08-18 12:10:49
This data file contains high accuracy European ObsPack observational timeseries in netCDF format of ambient mole fraction of CH4 in dry air collected at Saclay (100.0 m). The measurements were calibrated using the WMO GAW calibration scale WMO CH4 X2004A. Included are (all whenever available) historical PI QCed data, ICOS Level 2 data and ICOS NRT data. It is part of the CH4 European Obspack data product (version 11.0) 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/X5ZG-C3WE. 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).

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

9
0

Submission

2025-08-21 14:01:53
2025-08-21 14:01:52

Technical information

R, U, O
6f18ea34ad4fc33597955eb4b72c61db3a44f4777890a16b6eafb5d15d6fc460
bxjqNK1PwzWXlV60tyxh2zpE9Hd4kKFrbq+10V1vxGA
Lat: 48.7227, Lon: 2.142, Alt: 160.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series