ICOS Carbon Portal

ICOS ATC/CAL 14C Release, Pallas (12.0 m)

2017-12-14–2020-02-12
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11676/M7EIWJJj2aQ_MfagqhxBXS9V (link)
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
Hatakka, J., ICOS RI, 2020. ICOS ATC/CAL 14C Release, Pallas (12.0 m), 2017-12-14–2020-02-12, https://hdl.handle.net/11676/M7EIWJJj2aQ_MfagqhxBXS9V
BibTex
@misc{https://hdl.handle.net/11676/M7EIWJJj2aQ_MfagqhxBXS9V,
  author={Hatakka, Juha},
  title={ICOS ATC/CAL 14C Release, Pallas (12.0 m), 2017-12-14–2020-02-12},
  year={2020},
  url={https://hdl.handle.net/11676/M7EIWJJj2aQ_MfagqhxBXS9V},
  publisher={Atmosphere Thematic Centre},
  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},
  pid={11676/M7EIWJJj2aQ_MfagqhxBXS9V}
}
RIS
TY - DATA
T1 - ICOS ATC/CAL 14C Release, Pallas (12.0 m), 2017-12-14–2020-02-12
ID - 11676/M7EIWJJj2aQ_MfagqhxBXS9V
PY - 2020
UR - https://hdl.handle.net/11676/M7EIWJJj2aQ_MfagqhxBXS9V
PB - Atmosphere Thematic Centre
AU - Hatakka, Juha
ER - 
ICOS_ATC_L2_L2-2020.1_PAL_12.0_779_14C.zip
2 KB
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Acquisition

2017-12-14 00:00:00
2020-02-12 09:06:00
12.0

Production

2020-09-08 09:36:44

Previewable variables

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

Statistics

100
6

Submission

2020-09-08 09:36:45

Technical information

zip
33b108589263d9a43f31f6a0aa1c415d2f55dcae5dd3b1f623e16bce18163d74
M7EIWJJj2aQ/MfagqhxBXS9V3K5d07H2I+FrzhgWPXQ
Lat: 67.9733, Lon: 24.1157, Alt: 565.0 m
14CO2 ICOS