ICOS

Obspack CH4 time-series result from Ersa (40.0 m)

Download
2013-04-25–2025-03-31
11676/DHyicykrmJekzD_RIYfK9iOA (link)
Carbon Portal, Delmotte, M., Lopez, D., Lopez, M., Philippon, C., Ramonet, M. (2025). Obspack CH4 time-series result from Ersa (40.0 m), 2013-04-25–2025-03-31, European ObsPack, https://hdl.handle.net/11676/DHyicykrmJekzD_RIYfK9iOA
BibTex
@misc{https://hdl.handle.net/11676/DHyicykrmJekzD_RIYfK9iOA,
  author={Carbon Portal and Delmotte, Marc and Lopez, Dylan and Lopez, Morgan and Philippon, Carole and Ramonet, Michel},
  title={Obspack CH4 time-series result from Ersa (40.0 m), 2013-04-25–2025-03-31},
  year={2025},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/DHyicykrmJekzD_RIYfK9iOA},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/DHyicykrmJekzD_RIYfK9iOA}
}
RIS
TY - DATA
T1 - Obspack CH4 time-series result from Ersa (40.0 m), 2013-04-25–2025-03-31
ID - 11676/DHyicykrmJekzD_RIYfK9iOA
PY - 2025
UR - https://hdl.handle.net/11676/DHyicykrmJekzD_RIYfK9iOA
PB - Carbon Portal
AU - Carbon Portal
AU - Delmotte, Marc
AU - Lopez, Dylan
AU - Lopez, Morgan
AU - Philippon, Carole
AU - Ramonet, Michel
KW - WMO X2004A
KW - atmospheric dry air ch4 mole fraction
ER - 
ch4_ers_surface-insitu_11_allvalid.nc
2 MB (1636638 bytes)
78072
2

Acquisition

2013-04-25 15:30:00
2025-03-31 23:30:00
40.0

Production

2025-08-18 12:05:03
This data file contains high accuracy European ObsPack observational timeseries in netCDF format of ambient mole fraction of CH4 in dry air collected at Ersa (40.0 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 13:35:10
2025-08-21 13:35:08

Technical information

R, U, O
0c7ca273292b9897a4cc3fd12187caf62380225cde82085ff45434f332c3adcb
DHyicykrmJekzD/RIYfK9iOAIlzegghf9FQ08zLDrcs
Lat: 42.9692, Lon: 9.3801, Alt: 533.0 m
CH4 ICOS Obspack WMO X2004A atmospheric dry air ch4 mole fraction time series