Obspack CH4 time-series result from Cabauw (127.0 m)
2000-07-17–2025-08-17
Deprecated data
Latest version:
3M1N3xzD5RX6WZR0yJd3X4wB
11676/lt9nmiBMMbnDtrEqfMSa_JP3 (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 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, Frumau, A., Hensen, A., Vermeulen, A., van den Bulk, P. (2025). Obspack CH4 time-series result from Cabauw (127.0 m), 2000-07-17–2025-08-17, European ObsPack, https://hdl.handle.net/11676/lt9nmiBMMbnDtrEqfMSa_JP3
BibTex
@misc{https://hdl.handle.net/11676/lt9nmiBMMbnDtrEqfMSa_JP3,
author={ICOS RI and Frumau, Arnoud and Hensen, Arjan and Vermeulen, Alex and van den Bulk, Pim},
title={Obspack CH4 time-series result from Cabauw (127.0 m), 2000-07-17–2025-08-17},
year={2025},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/lt9nmiBMMbnDtrEqfMSa_JP3},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/lt9nmiBMMbnDtrEqfMSa_JP3}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Cabauw (127.0 m), 2000-07-17–2025-08-17 ID - 11676/lt9nmiBMMbnDtrEqfMSa_JP3 PY - 2025 UR - https://hdl.handle.net/11676/lt9nmiBMMbnDtrEqfMSa_JP3 PB - Carbon Portal AU - ICOS RI AU - Frumau, Arnoud AU - Hensen, Arjan AU - Vermeulen, Alex 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 (2874129 bytes)
175420
2
Acquisition
2000-07-17 16:30:00
2025-08-17 23:30:00
127.0
Production
2025-08-18 12:04:38
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
32
7
Technical information
R, U, O
96df679a204c31b9c3b6b12a7cc49afc93f78cbba46ef129c959f5d1b0f89038
lt9nmiBMMbnDtrEqfMSa/JP3jLukbvEpyVn10bD4kDg
Lat: 51.9703, Lon: 4.9264, Alt: 0.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series