Obspack CH4 time-series result from Pallas (12.0 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 Pallas (12.0 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).

@misc{https://hdl.handle.net/11676/5HsAovkMBSEvgEP5uSEqUwYa,
  author={Carbon Portal and Hatakka, Juha},
  title={Obspack CH4 time-series result from Pallas (12.0 m), 2004-02-11–2026-08-05},
  year={2026},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/5HsAovkMBSEvgEP5uSEqUwYa},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/5HsAovkMBSEvgEP5uSEqUwYa}
}

TY - DATA
T1 - Obspack CH4 time-series result from Pallas (12.0 m), 2004-02-11–2026-08-05
ID - 11676/5HsAovkMBSEvgEP5uSEqUwYa
PY - 2026
UR - https://hdl.handle.net/11676/5HsAovkMBSEvgEP5uSEqUwYa
PB - Carbon Portal
AU - Carbon Portal
AU - Hatakka, Juha
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 

ch4_pal_surface-insitu_30_12magl.nc

3 MB (3342046 bytes)

197014

2

2004-02-11 02:30:00

2026-08-05 23:30:00

12.0

2026-08-06 21:14:12

2026-08-06 22:34:18

2026-08-06 22:34:16

R, U, O

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5HsAovkMBSEvgEP5uSEqUwYaaXKwofs68t/1BF2pCTM