Obspack CH4 time-series result from Helgoland (110.0 m)
2020-08-08–2025-08-17
Deprecated data
Latest version:
XDlL9WDgI1l_Nn5pxfpDIvaQ
11676/c45De9Q9C7fL_heUpLcNvYRw (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 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).
ICOS RI, Kubistin, D., Plaß-Dülmer, C., Arnold, S., Kneuer, T., Lindauer, M., Müller-Williams, J., Schumacher, M., Zwerschke, E., Weyrauch, D. (2025). Obspack CH4 time-series result from Helgoland (110.0 m), 2020-08-08–2025-08-17, European ObsPack, https://hdl.handle.net/11676/c45De9Q9C7fL_heUpLcNvYRw
BibTex
@misc{https://hdl.handle.net/11676/c45De9Q9C7fL_heUpLcNvYRw,
author={ICOS RI 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), 2020-08-08–2025-08-17},
year={2025},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/c45De9Q9C7fL_heUpLcNvYRw},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/c45De9Q9C7fL_heUpLcNvYRw}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Helgoland (110.0 m), 2020-08-08–2025-08-17 ID - 11676/c45De9Q9C7fL_heUpLcNvYRw PY - 2025 UR - https://hdl.handle.net/11676/c45De9Q9C7fL_heUpLcNvYRw PB - Carbon Portal AU - ICOS RI 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_allvalid.nc
854 KB (874117 bytes)
42047
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Acquisition
2020-08-08 00:30:00
2025-08-17 23:30:00
110.0
Production
2025-08-18 12:05:35
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 |
Statistics
29
0
Technical information
R, U, O
738e437bd43d0bb7cbfe1794a4b70dbd8470d2d38b3dd902a3b98dd933810aea
c45De9Q9C7fL/heUpLcNvYRw0tOLPdkCo7mN2TOBCuo
Lat: 54.1804, Lon: 7.8833, Alt: 43.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series