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Obspack CH4 time-series result from Lerwick (2.0 m)

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2023-02-07–2026-03-17
11676/w5D_iDOSftlBi24R3R6XBkwn (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 Lerwick (2.0 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).
Carbon Portal, Stanley, K. (2026). Obspack CH4 time-series result from Lerwick (2.0 m), 2023-02-07–2026-03-17, European ObsPack, https://hdl.handle.net/11676/w5D_iDOSftlBi24R3R6XBkwn
BibTex
@misc{https://hdl.handle.net/11676/w5D_iDOSftlBi24R3R6XBkwn,
  author={Carbon Portal and Stanley, Kieran},
  title={Obspack CH4 time-series result from Lerwick (2.0 m), 2023-02-07–2026-03-17},
  year={2026},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/w5D_iDOSftlBi24R3R6XBkwn},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/w5D_iDOSftlBi24R3R6XBkwn}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Lerwick (2.0 m), 2023-02-07–2026-03-17
ID - 11676/w5D_iDOSftlBi24R3R6XBkwn
PY - 2026
UR - https://hdl.handle.net/11676/w5D_iDOSftlBi24R3R6XBkwn
PB - Carbon Portal
AU - Carbon Portal
AU - Stanley, Kieran
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 
ch4_sis_surface-insitu_160_2magl.nc
516 KB (528479 bytes)
27215
2

Acquisition

2023-02-07 10:30:00
2026-03-17 08:30:00
2.0

Production

2026-08-06 21:16:03

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

2
0

Submission

2026-08-06 22:34:39
2026-08-06 22:34:38

Technical information

R, U, O
c390ff8833927ed9418b6e11dd1e97064c2717b4c32b8bf4f186f562c69f6053
w5D/iDOSftlBi24R3R6XBkwnF7TDK4v08Yb1YsafYFM
Lat: 60.1391, Lon: -1.1848, Alt: 84.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series