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Obspack CH4 time-series result from Birkenes (75.0 m)

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2020-09-14–2026-08-23
11676/jFxe0toFJ5seZ9mGYo6PCmki (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 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 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).
Lund Myhre, C., Platt, S., Lunder, C., Hermansen, O. (2026). Obspack CH4 time-series result from Birkenes (75.0 m), 2020-09-14–2026-08-23, European ObsPack, https://hdl.handle.net/11676/jFxe0toFJ5seZ9mGYo6PCmki
BibTex
@misc{https://hdl.handle.net/11676/jFxe0toFJ5seZ9mGYo6PCmki,
  author={Lund Myhre, Cathrine and Platt, Stephen Matthew and Lunder, Chris and Hermansen, Ove},
  title={Obspack CH4 time-series result from Birkenes (75.0 m), 2020-09-14–2026-08-23},
  year={2026},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/jFxe0toFJ5seZ9mGYo6PCmki},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/jFxe0toFJ5seZ9mGYo6PCmki}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Birkenes (75.0 m), 2020-09-14–2026-08-23
ID - 11676/jFxe0toFJ5seZ9mGYo6PCmki
PY - 2026
UR - https://hdl.handle.net/11676/jFxe0toFJ5seZ9mGYo6PCmki
PB - Carbon Portal
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_75magl.nc
998 KB (1021811 bytes)
52080
2

Acquisition

2020-09-14 00:30:00
2026-08-23 23:30:00
75.0

Production

2026-08-26 06:54:37

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

1
0

Submission

2026-08-26 09:48:51
2026-08-26 09:48:50

Technical information

R, U, O
8c5c5ed2da05279b1e67d986628e8f0a6922e7a6a0a0ffbe2418ba3ad8f5a149
jFxe0toFJ5seZ9mGYo6PCmki56agoP++JBi6Otj1oUk
Lat: 58.3886, Lon: 8.2519, Alt: 219.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series