Obspack CH4 time-series result from Ridge Hill (45.0 m)
2012-02-23–2026-08-24
11676/5jfEyJ6hHBZg05GmLx7qBQH0 (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 Ridge Hill (45.0 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 a release of the CH4 European Obspack data product (version 12.1), 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/K54N-TNWH. 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/MD10-E1BJ).
O'Doherty, S., Stanley, K., Pitt, J. (2026). Obspack CH4 time-series result from Ridge Hill (45.0 m), 2012-02-23–2026-08-24, European ObsPack, https://hdl.handle.net/11676/5jfEyJ6hHBZg05GmLx7qBQH0
BibTex
@misc{https://hdl.handle.net/11676/5jfEyJ6hHBZg05GmLx7qBQH0,
author={O'Doherty, Simon and Stanley, Kieran and Pitt, Joseph},
title={Obspack CH4 time-series result from Ridge Hill (45.0 m), 2012-02-23–2026-08-24},
year={2026},
keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
url={https://hdl.handle.net/11676/5jfEyJ6hHBZg05GmLx7qBQH0},
publisher={Carbon Portal},
copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
pid={11676/5jfEyJ6hHBZg05GmLx7qBQH0}
}
RIS
TY - DATA T1 - Obspack CH4 time-series result from Ridge Hill (45.0 m), 2012-02-23–2026-08-24 ID - 11676/5jfEyJ6hHBZg05GmLx7qBQH0 PY - 2026 UR - https://hdl.handle.net/11676/5jfEyJ6hHBZg05GmLx7qBQH0 PB - Carbon Portal AU - O'Doherty, Simon AU - Stanley, Kieran AU - Pitt, Joseph KW - WMO X2004A KW - atmospheric dry air ch4 mole fraction ER -
ch4_rgl_tower-insitu_160_45magl.nc
2 MB (2283026 bytes)
127112
2
Acquisition
2012-02-23 16:30:00
2026-08-24 23:30:00
45.0
Production
2026-08-26 07:05:39
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
0
0
Technical information
R, U, O
e637c4c89ea11c1660d391a62f1eea0501f4d619200e9c31db514a4fff29ef83
5jfEyJ6hHBZg05GmLx7qBQH01hkgDpwx21FKT/8p74M
Lat: 51.9975, Lon: -2.5399, Alt: 207.0 m
CH4
ICOS
Obspack
WMO X2004A
atmospheric dry air ch4 mole fraction
time series