Obspack CH4 time-series result from Helgoland (110.0 m)
2020-08-05–2026-08-05
11676/eVhydqjwIsPqZ3RJiVs7PFbl (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 Helgoland (110.0 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, Kubistin, D., Plaß-Dülmer, C., Arnold, S., Kneuer, T., Lindauer, M., Müller-Williams, J., Schumacher, M., Zwerschke, E., Weyrauch, D. (2026). Obspack CH4 time-series result from Helgoland (110.0 m), 2020-08-05–2026-08-05, European ObsPack, https://hdl.handle.net/11676/eVhydqjwIsPqZ3RJiVs7PFbl
BibTex
@misc{https://hdl.handle.net/11676/eVhydqjwIsPqZ3RJiVs7PFbl,
author={Carbon Portal and Kubistin, Dagmar and Plaß-Dülmer, Christian and Arnold, Sabrina and Kneuer, Tobias and Lindauer, Matthias and Müller-Williams, Jennifer and Schumacher, Marcus and Zwerschke, Elena and Weyrauch, Dietmar},
title={Obspack CH4 time-series result from Helgoland (110.0 m), 2020-08-05–2026-08-05},
year={2026},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/eVhydqjwIsPqZ3RJiVs7PFbl},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/eVhydqjwIsPqZ3RJiVs7PFbl}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Helgoland (110.0 m), 2020-08-05–2026-08-05 ID - 11676/eVhydqjwIsPqZ3RJiVs7PFbl PY - 2026 UR - https://hdl.handle.net/11676/eVhydqjwIsPqZ3RJiVs7PFbl PB - Carbon Portal AU - Carbon Portal AU - Kubistin, Dagmar AU - Plaß-Dülmer, Christian AU - Arnold, Sabrina AU - Kneuer, Tobias AU - Lindauer, Matthias AU - Müller-Williams, Jennifer AU - Schumacher, Marcus AU - Zwerschke, Elena AU - Weyrauch, Dietmar KW - WMO X2004A KW - atmospheric dry air ch4 mole fraction ER -
ch4_hel_surface-insitu_147_110magl.nc
1 MB (1157152 bytes)
52595
2
Acquisition
2020-08-05 13:30:00
2026-08-05 23:30:00
110.0
Production
2026-08-06 21:06:15
Dagmar Kubistin,
Christian Plaß-Dülmer,
Sabrina Arnold,
Tobias Kneuer,
Matthias Lindauer,
Jennifer Müller-Williams,
Marcus Schumacher,
Elena Zwerschke,
Dietmar Weyrauch
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
3
0
Technical information
R, U, O
79587276a8f022c3ea677449895b3b3c56e5917e16d969ae818763114ad72012
eVhydqjwIsPqZ3RJiVs7PFblkX4W2WmugYdjEUrXIBI
Lat: 54.1804, Lon: 7.8833, Alt: 43.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series