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ICOS ATC CO2 Release from Westerland (14.0 m)

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2021-07-23–2026-03-31
11676/P7D92fWgIZ7PcPM4EU9AydGz (link)

Quality-controlled data on molar fraction of atmospheric CO2

All the time series have been updated due to a Flask and Calibration Laboratory minor internal scale update. The revision of CO2 data has been made to account for the response difference of isotopologue selective analyzers to the differences of d13C and d18O in CO2 of references gases compared to ambient air CO2 (see: Jordan A. (2024): Accounting for CO2 isotopic composition inhomogeneity in standard gases used for isotopologue specific CRDS measurements , https://community.wmo.int/events/22nd-wmoiaea-meeting-carbon-dioxide-other-greenhouse-gases-and-related-tracers-measurement)
ICOS
Couret, C., Schmidt, M. (2026). ICOS ATC CO2 Release from Westerland (14.0 m), 2021-07-23–2026-03-31, ICOS RI, https://hdl.handle.net/11676/P7D92fWgIZ7PcPM4EU9AydGz
BibTex 
@misc{https://hdl.handle.net/11676/P7D92fWgIZ7PcPM4EU9AydGz,
  author={Couret, Cédric and Schmidt, Martina},
  title={ICOS ATC CO2 Release from Westerland (14.0 m), 2021-07-23–2026-03-31},
  year={2026},
  url={https://hdl.handle.net/11676/P7D92fWgIZ7PcPM4EU9AydGz},
  publisher={Atmosphere Thematic Centre},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/P7D92fWgIZ7PcPM4EU9AydGz}
}
RIS 
TY - DATA
T1 - ICOS ATC CO2 Release from Westerland (14.0 m), 2021-07-23–2026-03-31
ID - 11676/P7D92fWgIZ7PcPM4EU9AydGz
PY - 2026
UR - https://hdl.handle.net/11676/P7D92fWgIZ7PcPM4EU9AydGz
PB - Atmosphere Thematic Centre
AU - Couret, Cédric
AU - Schmidt, Martina
ER -
view #1, view #2
ICOS_ATC_L2_L2-2026.1_WES_14.0_CTS_CO2.zip
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41112
ICOS ATC CO2 Release
2
ICOS CCBY4 Data Licence

Acquisition

Westerland
2021-07-23 00:00:00
2026-03-31 23:00:00
CO2-CH4-H2O Picarro Analyzer
14.0

Production

Atmosphere Thematic Centre
Atmosphere Thematic Centre
2026-07-01 14:11:47
ICOS-CAL-FCL

Previewable variables

Name Value type Unit Quantity kind Preview
TIMESTAMP time instant, UTC
co2 CO2 (dry air mole fraction) µmol mol-1 portion Preview
Stdev standard deviation of gas mole fraction µmol mol-1 portion Preview
Flag quality flag
NbPoints number of points cardinal number Preview

Statistics

0
0

Submission

Atmosphere Thematic Centre
2026-07-01 14:11:50
2026-07-01 14:11:47

Technical information

ICOS ATC time series
R, U, O
zip
3fb0fdd9f5a0219ecf70f338114f40c9d1b32c919ab88c3fa0b6e25772507f6e
P7D92fWgIZ7PcPM4EU9AydGzLJGauIw/oLbiV3JQf24
Lat: 54.9231, Lon: 8.308, Alt: 12.0 m
Westerland
JSON • RDF/XML • RDF/Turtle • XML (ISO 19115-3:2016)
CO2 ICOS dry air mole fraction