Obspack CH4 time-series result from Cabauw (207.0 m)
1993-04-01–2026-08-05
11676/9MQYId4LQRDhUCG69Vvnyf2Y (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 Cabauw (207.0 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, Frumau, A., Hensen, A., Vermeulen, A., Hilland, R., van den Bulk, P. (2026). Obspack CH4 time-series result from Cabauw (207.0 m), 1993-04-01–2026-08-05, European ObsPack, https://hdl.handle.net/11676/9MQYId4LQRDhUCG69Vvnyf2Y
BibTex
@misc{https://hdl.handle.net/11676/9MQYId4LQRDhUCG69Vvnyf2Y,
author={Carbon Portal and Frumau, Arnoud and Hensen, Arjan and Vermeulen, Alex and Hilland, Rainer and van den Bulk, Pim},
title={Obspack CH4 time-series result from Cabauw (207.0 m), 1993-04-01–2026-08-05},
year={2026},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/9MQYId4LQRDhUCG69Vvnyf2Y},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/9MQYId4LQRDhUCG69Vvnyf2Y}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Cabauw (207.0 m), 1993-04-01–2026-08-05 ID - 11676/9MQYId4LQRDhUCG69Vvnyf2Y PY - 2026 UR - https://hdl.handle.net/11676/9MQYId4LQRDhUCG69Vvnyf2Y PB - Carbon Portal AU - Carbon Portal AU - Frumau, Arnoud AU - Hensen, Arjan AU - Vermeulen, Alex AU - Hilland, Rainer AU - van den Bulk, Pim KW - WMO X2004A KW - atmospheric dry air ch4 mole fraction ER -
ch4_cbw_tower-insitu_445_207magl.nc
4 MB (4128657 bytes)
292305
2
Acquisition
1993-04-01 14:30:00
2026-08-05 23:30:00
207.0
Production
2026-08-06 21:04:28
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
f4c41821de0b4110e15021baf55be7c9fd98e40deea92b111560360a6a0c3c65
9MQYId4LQRDhUCG69Vvnyf2Y5A3uqSsRFWA2CmoMPGU
Lat: 51.9703, Lon: 4.9264, Alt: 0.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series