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Obspack CH4 time-series result from Mace Head (6.5 m)

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2023-06-13–2026-07-06
11676/OrxSjrFZagHulPLMqKx-xFUb (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 Mace Head (6.5 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, Lopez, M., Martin, D., Ramonet, M. (2026). Obspack CH4 time-series result from Mace Head (6.5 m), 2023-06-13–2026-07-06, European ObsPack, https://hdl.handle.net/11676/OrxSjrFZagHulPLMqKx-xFUb
BibTex
@misc{https://hdl.handle.net/11676/OrxSjrFZagHulPLMqKx-xFUb,
  author={Carbon Portal and Lopez, Morgan and Martin, Damien and Ramonet, Michel},
  title={Obspack CH4 time-series result from Mace Head (6.5 m), 2023-06-13–2026-07-06},
  year={2026},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/OrxSjrFZagHulPLMqKx-xFUb},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/OrxSjrFZagHulPLMqKx-xFUb}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Mace Head (6.5 m), 2023-06-13–2026-07-06
ID - 11676/OrxSjrFZagHulPLMqKx-xFUb
PY - 2026
UR - https://hdl.handle.net/11676/OrxSjrFZagHulPLMqKx-xFUb
PB - Carbon Portal
AU - Carbon Portal
AU - Lopez, Morgan
AU - Martin, Damien
AU - Ramonet, Michel
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 
ch4_mhd_tower-insitu_11_6magl.nc
602 KB (616066 bytes)
26867
2

Acquisition

2023-06-13 13:30:00
2026-07-06 23:30:00
6.5

Production

2026-08-06 21:12:38

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

Submission

2026-08-06 22:33:55
2026-08-06 22:33:54

Technical information

R, U, O
3abc528eb1596a01ee94f2cca8ac7ec4551b675d95010d61b31204320b563ff8
OrxSjrFZagHulPLMqKx+xFUbZ12VAQ1hsxIEMgtWP/g
Lat: 53.3261, Lon: -9.9036, Alt: 5.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series