Obspack CH4 time-series result from Cabauw (127.0 m)
2000-07-17–2026-04-09
11676/3M1N3xzD5RX6WZR0yJd3X4wB (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 (127.0 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 2026.2 FastTrack update of the Globalview EU data product 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/10.18160/227Y-E2KA. 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/10.18160/1PZ9-SDJ2).
ICOS RI, Frumau, A., Hensen, A., Vermeulen, A., Hilland, R., van den Bulk, P. (2026). Obspack CH4 time-series result from Cabauw (127.0 m), 2000-07-17–2026-04-09, European ObsPack, https://hdl.handle.net/11676/3M1N3xzD5RX6WZR0yJd3X4wB
BibTex
@misc{https://hdl.handle.net/11676/3M1N3xzD5RX6WZR0yJd3X4wB,
author={ICOS RI 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 (127.0 m), 2000-07-17–2026-04-09},
year={2026},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/3M1N3xzD5RX6WZR0yJd3X4wB},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/3M1N3xzD5RX6WZR0yJd3X4wB}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Cabauw (127.0 m), 2000-07-17–2026-04-09 ID - 11676/3M1N3xzD5RX6WZR0yJd3X4wB PY - 2026 UR - https://hdl.handle.net/11676/3M1N3xzD5RX6WZR0yJd3X4wB PB - Carbon Portal AU - ICOS RI 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_allvalid-127magl.nc
3 MB (2989086 bytes)
180313
2
Acquisition
2000-07-17 16:30:00
2026-04-09 23:30:00
127.0
Production
2026-04-10 14:25:11
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
1
0
Technical information
R, U, O
dccd4ddf1cc3e515fa599474c897775f8c01040a11a715022db956963ff61899
3M1N3xzD5RX6WZR0yJd3X4wBBAoRpxUCLblWlj/2GJk
Lat: 51.9703, Lon: 4.9264, Alt: 0.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series