ICOS

ICOS ATC 14C Release analysed by ICOS CRL, Jungfraujoch (10.0 m)

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2016-01-04–2018-07-15

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The ICOS Central Radiocarbon Laboratory (CRL) central task is the high-precision measurement of the ¹⁴C content in atmospheric CO₂. The ¹⁴CO₂ activity is determined for grab samples (flask) as well as for two-week integrated ambient air samples. Two ¹⁴CO₂ analytical techniques are applied in the CRL: Accelerator Mass Spectrometry (AMS) in collaboration with the CEZA laboratory in Mannheim, Germany (Lux, 2019), and Low-Level gas proportional Counting (LLC) (Kromer & Münnich, 1992). The comparability of both measurement techniques is continuously monitored and was documented in Hammer et al. (2017)
Lux, J. T. (2018). A new target preparation facility for high precision AMS measurements and strategies for efficient ¹⁴CO₂ sampling (Doctoral dissertation). DOI: https://doi.org/10.11588/heidok.00024767
Kromer, B., & Münnich, K. O. (1992). CO₂ gas proportional counting in radiocarbon dating—review and perspective. Radiocarbon after four decades, 184-197. DOI: https://doi.org/10.1007/978-1-4757-4249-7_13
Hammer, S., Friedrich, R., Kromer, B., Cherkinsky, A., Lehman, S. J., Meijer, H. A., ... & Uchida, M. (2017). Compatibility of Atmospheric ¹⁴CO₂ Measurements: Comparing the Heidelberg Low-Level Counting Facility to International Accelerator Mass Spectrometry (AMS) Laboratories. Radiocarbon, 59(3), 875-883. DOI: https://doi.org/10.1017/RDC.2016.62
See also CEZA laboratory: https://www.ceza.de/en
Emmenegger, L., Leuenberger, M., Steinbacher, M. (2019). ICOS ATC 14C Release analysed by ICOS CRL, Jungfraujoch (10.0 m), 2016-01-04–2018-07-15, ICOS RI, https://hdl.handle.net/11676/0yDrKllpdGVPtMsFIMSUEm1N
BibTex
@misc{https://hdl.handle.net/11676/0yDrKllpdGVPtMsFIMSUEm1N,
  author={Emmenegger, Lukas and Leuenberger, Markus and Steinbacher, Martin},
  title={ICOS ATC 14C Release analysed by ICOS  CRL, Jungfraujoch (10.0 m), 2016-01-04–2018-07-15},
  year={2019},
  url={https://hdl.handle.net/11676/0yDrKllpdGVPtMsFIMSUEm1N},
  publisher={Atmosphere Thematic Centre},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/0yDrKllpdGVPtMsFIMSUEm1N}
}
RIS
TY - DATA
T1 - ICOS ATC 14C Release analysed by ICOS  CRL, Jungfraujoch (10.0 m), 2016-01-04–2018-07-15
ID - 11676/0yDrKllpdGVPtMsFIMSUEm1N
PY - 2019
UR - https://hdl.handle.net/11676/0yDrKllpdGVPtMsFIMSUEm1N
PB - Atmosphere Thematic Centre
AU - Emmenegger, Lukas
AU - Leuenberger, Markus
AU - Steinbacher, Martin
ER - 
ICOS_ATC_L2_L2-2019.1_JFJ_10.0_779_14C.zip
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Acquisition

2016-01-04 00:00:00
2018-07-16 00:00:00
10.0

Production

2019-08-02 10:13:15

Previewable variables

Name Value type Unit Quantity kind Preview
TIMESTAMP time instant, UTC
IntegrationTime integration time day cardinal number Preview
14C Δ14C per mil ratio Preview
Stdev standard deviation of gas mole fraction µmol mol-1 portion Preview
NbPoints number of points cardinal number Preview
Flag quality flag

Statistics

220
62

Submission

2019-08-02 10:13:16
2019-08-02 10:13:16

Technical information

R, O, U
zip
d320eb2a596974654fb4cb0520c494126d4da9870f0a2dd284665d8a23b17eb8
0yDrKllpdGVPtMsFIMSUEm1NqYcPCi3ShGZdiiOxfrg
Lat: 46.5475, Lon: 7.9851, Alt: 3571.8 m
14CO2 ICOS