ICOS

Obspack CH4 time-series result from Westerland (14.0 m)

Download
2021-07-23–2025-08-17
11676/EvD7GWpipB__NqXXTEbm2L3R (link)
Carbon Portal, Couret, C., Schmidt, M., Elsasser, M., Schreiber, M. (2025). Obspack CH4 time-series result from Westerland (14.0 m), 2021-07-23–2025-08-17, European ObsPack, https://hdl.handle.net/11676/EvD7GWpipB__NqXXTEbm2L3R
BibTex
@misc{https://hdl.handle.net/11676/EvD7GWpipB__NqXXTEbm2L3R,
  author={Carbon Portal and Couret, Cédric and Schmidt, Martina and Elsasser, Michael and Schreiber, Mirella},
  title={Obspack CH4 time-series result from Westerland (14.0 m), 2021-07-23–2025-08-17},
  year={2025},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/EvD7GWpipB__NqXXTEbm2L3R},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/EvD7GWpipB__NqXXTEbm2L3R}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Westerland (14.0 m), 2021-07-23–2025-08-17
ID - 11676/EvD7GWpipB__NqXXTEbm2L3R
PY - 2025
UR - https://hdl.handle.net/11676/EvD7GWpipB__NqXXTEbm2L3R
PB - Carbon Portal
AU - Carbon Portal
AU - Couret, Cédric
AU - Schmidt, Martina
AU - Elsasser, Michael
AU - Schreiber, Mirella
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 
ch4_wes_surface-insitu_25_allvalid.nc
685 KB (701493 bytes)
34324
2

Acquisition

2021-07-23 11:30:00
2025-08-17 23:30:00
14.0

Production

2025-08-18 12:12:38
This data file contains high accuracy European ObsPack observational timeseries in netCDF format of ambient mole fraction of CH4 in dry air collected at Westerland (14.0 m). The measurements were calibrated using the WMO GAW calibration scale WMO CH4 X2004A. Included are (all whenever available) historical PI QCed data, ICOS Level 2 data and ICOS NRT data. It is part of the CH4 European Obspack data product (version 11.0) 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/X5ZG-C3WE. 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).

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

Statistics

9
0

Submission

2025-08-21 14:03:06
2025-08-21 14:03:04

Technical information

R, U, O
12f0fb196a62a41fff36a5d74c46e6d8bdd13f1082df85744942d78ba11b4a16
EvD7GWpipB//NqXXTEbm2L3RPxCC34V0SULXi6EbShY
Lat: 54.9231, Lon: 8.308, Alt: 12.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series