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ICOS ATC CO2 Release from Ridge Hill (45.0 m)

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2021-02-25–2026-03-31
11676/rPJF1gAHgp3EVaAJt4JpDFaB (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
ICOS Atmosphere Release 2026-1 of Level 2 Greenhouse Gas Mole Fractions of CO2, CH4, N2O, CO, meteorology, Radon-222 and 14CO2, and flask samples analysed for CO2, CH4, N2O, CO, H2, SF6 and , delta 13C Co2, delta18OCO2, delta O2N2 and 14C
O'Doherty, S., Stanley, K., Pitt, J. (2026). ICOS ATC CO2 Release from Ridge Hill (45.0 m), 2021-02-25–2026-03-31, ICOS RI, https://hdl.handle.net/11676/rPJF1gAHgp3EVaAJt4JpDFaB
BibTex 
@misc{https://hdl.handle.net/11676/rPJF1gAHgp3EVaAJt4JpDFaB,
  author={O'Doherty, Simon and Stanley, Kieran and Pitt, Joseph},
  title={ICOS ATC CO2 Release from Ridge Hill (45.0 m), 2021-02-25–2026-03-31},
  year={2026},
  url={https://hdl.handle.net/11676/rPJF1gAHgp3EVaAJt4JpDFaB},
  publisher={Atmosphere Thematic Centre},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/rPJF1gAHgp3EVaAJt4JpDFaB}
}
RIS 
TY - DATA
T1 - ICOS ATC CO2 Release from Ridge Hill (45.0 m), 2021-02-25–2026-03-31
ID - 11676/rPJF1gAHgp3EVaAJt4JpDFaB
PY - 2026
UR - https://hdl.handle.net/11676/rPJF1gAHgp3EVaAJt4JpDFaB
PB - Atmosphere Thematic Centre
AU - O'Doherty, Simon
AU - Stanley, Kieran
AU - Pitt, Joseph
ER -
view #1, view #2
ICOS_ATC_L2_L2-2026.1_RGL_45.0_CTS_CO2.zip
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44664
ICOS ATC CO2 Release
2
ICOS CCBY4 Data Licence

Acquisition

Ridge Hill
2021-02-25 00:00:00
2026-03-31 23:00:00
CO2-CH4-CO-H2O Picarro Analyzer
Picarro CO2-CH4-H2O Analyzer, nafion dried sample, Ridge Hill
45.0

Production

Atmosphere Thematic Centre
Atmosphere Thematic Centre
2026-07-01 14:04:18
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

1
0

Submission

Atmosphere Thematic Centre
2026-07-01 14:04:20
2026-07-01 14:04:18

Technical information

ICOS ATC time series
R, U, O
zip
acf245d60007829dc455a009b782690c5681773d56f39aac58fd4cc4cef3d981
rPJF1gAHgp3EVaAJt4JpDFaBdz1W85qsWP1MxM7z2YE
Lat: 51.9975, Lon: -2.5399, Alt: 207.0 m
Ridge Hill
JSON • RDF/XML • RDF/Turtle • XML (ISO 19115-3:2016)
CO2 ICOS dry air mole fraction