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

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 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).

@misc{https://hdl.handle.net/11676/RLFUFMpzmQDGwA5snYAFUzG_,
  author={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), 2013-04-25–2026-03-31},
  year={2026},
  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},
  url={https://hdl.handle.net/11676/RLFUFMpzmQDGwA5snYAFUzG_},
  publisher={Carbon Portal},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/RLFUFMpzmQDGwA5snYAFUzG_}
}

TY - DATA
T1 - Obspack CH4 time-series result from Ersa (40.0 m), 2013-04-25–2026-03-31
ID - 11676/RLFUFMpzmQDGwA5snYAFUzG_
PY - 2026
UR - https://hdl.handle.net/11676/RLFUFMpzmQDGwA5snYAFUzG_
PB - 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_40magl.nc

2 MB (2104683 bytes)

103772

2

2013-04-25 00:30:00

2026-03-31 23:30:00

40.0

2026-08-26 06:57:11

2026-08-26 09:49:32

2026-08-26 09:49:30

R, U, O

44b15414ca739900c6c00e6c9d80055331bf487d43a13ebb16f4268b5ee8012a

RLFUFMpzmQDGwA5snYAFUzG/SH1DoT67FvQmi17oASo