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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

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doi:10.5194/amt-2016-111
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
24 Aug 2016
Review status
A revision of this discussion paper was accepted for the journal Atmospheric Measurement Techniques (AMT) and is expected to appear here in due course.
A European-wide 222Radon and 222Radon progeny comparison study
Dominik Schmithüsen1, Scott Chambers2, Bernd Fischer3, Stefan Gilge4, Juha Hatakka5, Victor Kazan6, Rolf Neubert7, Jussi Paatero5, Michel Ramonet6, Clemens Schlosser8, Sabine Schmid8, Alex Vermeulen9,10, and Ingeborg Levin1 1Institut für Umweltphysik (IUP), Heidelberg University, 69120 Heidelberg, Germany
2Institute for Environmental Research (ANSTO), Lucas Heights, Australia
3Umweltbundesamt (UBA), Meßstelle Schauinsland, Oberried, Germany
4Deutscher Wetterdienst, Hohenpeißenberg (HPB), Hohenpeißenberg Germany
5Finnish Meteorological Institution (FMI), Helsinki, Finland
6Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CE A-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France
7Centrum voor IsotopenOnderzoek (CIO), ESRIG, University of Groningen, Groningen, The Netherlands
8Bundesamt für Strahlenschutz (BfS), Freiburg, Germany
9Energy research Centre of the Netherlands (ECN), Petten, The Netherlands,
10now at: ICOS ERIC – Carbon Portal, Lund, Sweden
Abstract. A European-wide 222Radon/222Radon progeny comparison study has been conducted in order to determine correction factors that could be applied to existing atmospheric 222Radon data sets for quantitative use of this tracer in atmospheric transport model validation. Two compact and easy-to-transport Heidelberg Radon Monitors (HRM) were moved around to run for at least one month at each of the nine European measurement stations that were included in the comparison. Linear regressions between parallel data sets were calculated, yielding correction factors relative to the HRM ranging from 0.68 to 1.45. A calibration bias between ANSTO (Australian Nuclear Science and Technology Organisation) two-filter radon monitors and the HRM of ANSTO/HRM = 1.11 ± 0.05 was found. For continental stations, which use one-filter systems, preliminary 214Po/222Rn disequilibrium values were estimated to lie between 0.8 at mountain stations (e.g. Schauinsland) and 0.9 at non-mountain sites for sampling heights around 20 to 30 m above ground level. Respective corrections need to be applied to obtain a consistent European 222Radon data set for further applications.

Citation: Schmithüsen, D., Chambers, S., Fischer, B., Gilge, S., Hatakka, J., Kazan, V., Neubert, R., Paatero, J., Ramonet, M., Schlosser, C., Schmid, S., Vermeulen, A., and Levin, I.: A European-wide 222Radon and 222Radon progeny comparison study, Atmos. Meas. Tech. Discuss., doi:10.5194/amt-2016-111, in review, 2016.
Dominik Schmithüsen et al.
Dominik Schmithüsen et al.

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Short summary
A European-wide 222Radon/222Radon progeny comparison study has been conducted at nine measurement stations, in order to determine differences between existing 222Radon instrumentation and atmospheric data sets, respectively. Mean differences up to 45 % were found between monitors. These differences need to be taken into account if the data shall serve for quantitative regional atmospheric transport model validation.
A European-wide 222Radon/222Radon progeny comparison study has been conducted at nine...
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