Obspack CH4 time-series result from Birkenes (75.0 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 Birkenes (75.0 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 2025.3 FastTrack update of the Globalview EU CH4 data product 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/10.18160/3TB5-D6TM. 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/10.18160/46ST-DEVK).

@misc{https://hdl.handle.net/11676/3FuLhbsE75MuV5R7LfifKona,
  author={ICOS RI and Lund Myhre, Cathrine and Platt, Stephen Matthew and Lunder, Chris and Hermansen, Ove},
  title={Obspack CH4 time-series result from Birkenes (75.0 m), 2020-09-14–2025-10-02},
  year={2025},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/3FuLhbsE75MuV5R7LfifKona},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/3FuLhbsE75MuV5R7LfifKona}
}

TY - DATA
T1 - Obspack CH4 time-series result from Birkenes (75.0 m), 2020-09-14–2025-10-02
ID - 11676/3FuLhbsE75MuV5R7LfifKona
PY - 2025
UR - https://hdl.handle.net/11676/3FuLhbsE75MuV5R7LfifKona
PB - Carbon Portal
AU - ICOS RI
AU - Lund Myhre, Cathrine
AU - Platt, Stephen Matthew
AU - Lunder, Chris
AU - Hermansen, Ove
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 

ch4_bir_tower-insitu_56_allvalid-75magl.nc

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