Obspack CH4 time-series result from Hyytiälä (67.2 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 Hyytiälä (67.2 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/vQTQ9go9JJ4wAYteu6Xo8sa7,
  author={Levula, Janne and Mammarella, Ivan and Keronen, Petri and Kolari, Pasi and Taipale, Risto},
  title={Obspack CH4 time-series result from Hyytiälä (67.2 m), 2015-05-03–2026-08-21},
  year={2026},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/vQTQ9go9JJ4wAYteu6Xo8sa7},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/vQTQ9go9JJ4wAYteu6Xo8sa7}
}

TY - DATA
T1 - Obspack CH4 time-series result from Hyytiälä (67.2 m), 2015-05-03–2026-08-21
ID - 11676/vQTQ9go9JJ4wAYteu6Xo8sa7
PY - 2026
UR - https://hdl.handle.net/11676/vQTQ9go9JJ4wAYteu6Xo8sa7
PB - Carbon Portal
AU - Levula, Janne
AU - Mammarella, Ivan
AU - Keronen, Petri
AU - Kolari, Pasi
AU - Taipale, Risto
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 

ch4_smr_tower-insitu_421_67magl.nc

2 MB (1916530 bytes)

99083

2

2015-05-03 00:30:00

2026-08-21 23:30:00

67.2

2026-08-26 07:06:23

2026-08-26 09:52:06

2026-08-26 09:52:05

R, U, O

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