ICOS

Obspack CH4 time-series result from Bilsdale (108.0 m)

Download
2014-01-30–2021-08-10
11676/QQ2KBL-jmV4mK7irIKEiwlKb (link)
Carbon Portal, Stanley, K., O'Doherty, S., Pitt, J. (2025). Obspack CH4 time-series result from Bilsdale (108.0 m), 2014-01-30–2021-08-10, European ObsPack, https://hdl.handle.net/11676/QQ2KBL-jmV4mK7irIKEiwlKb
BibTex
@misc{https://hdl.handle.net/11676/QQ2KBL-jmV4mK7irIKEiwlKb,
  author={Carbon Portal and Stanley, Kieran and O'Doherty, Simon and Pitt, Joseph},
  title={Obspack CH4 time-series result from Bilsdale (108.0 m), 2014-01-30–2021-08-10},
  year={2025},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/QQ2KBL-jmV4mK7irIKEiwlKb},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/QQ2KBL-jmV4mK7irIKEiwlKb}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Bilsdale (108.0 m), 2014-01-30–2021-08-10
ID - 11676/QQ2KBL-jmV4mK7irIKEiwlKb
PY - 2025
UR - https://hdl.handle.net/11676/QQ2KBL-jmV4mK7irIKEiwlKb
PB - Carbon Portal
AU - Carbon Portal
AU - Stanley, Kieran
AU - O'Doherty, Simon
AU - Pitt, Joseph
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 
ch4_bsd_tower-insitu_160_allvalid-108magl.nc
1 MB (1089618 bytes)
60637
2

Acquisition

2014-01-30 11:30:00
2021-08-10 12:30:00
108.0

Production

2025-08-18 12:04:11
This data file contains high accuracy European ObsPack observational timeseries in netCDF format of ambient mole fraction of CH4 in dry air collected at Bilsdale (108.0 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).

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

Submission

2025-08-21 13:34:37
2025-08-21 13:34:36

Technical information

R, U, O
410d8a04bfa3995e262bb8ab20a122c2529b7aec159dd9f902178c6180244fa6
QQ2KBL+jmV4mK7irIKEiwlKbeuwVndn5AheMYYAkT6Y
Lat: 54.3586, Lon: -1.1504, Alt: 382.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series