Third international challenge to model the medium- to long-range transport of radioxenon to four Comprehensive Nuclear-Test-Ban Treaty monitoring stations

作者：C. Maurer, Stefano Galmarini, Efisio Solazzo, Jolanta Kuśmierczyk-Michulec, Jonathan Baré, Martin Kalinowski, Michael Schoeppner, Pierre Bourgouin, Alice Crawford, Ariel Stein, Tianfeng Chai, Fong Ngan, Alain Malo, Petra Seibert, A. Axelsson, Anders Ringbom, R. Britton, Antony N. Davies, Matthew A. Goodwin, Paul W. Eslinger, Ted W. Bowyer, L Glascoe, D. D. Lucas, S. Cicchi, P Vogt, Yuichi Kijima, Akiko Furuno, Pham Kim Long, Blake Orr, Alan Wain, K. Park, Kyung-Suk Suh, Arnaud Quérel, Olivier Saunier, Denis Quélo · 发表于：Journal of Environmental Radioactivity · 年份：2022 · DOI：10.1016/j.jenvrad.2022.106968 · 被引用次数：12 · 研究领域：Atmospheric and Environmental Gas Dynamics、Atmospheric chemistry and aerosols、Radioactive contamination and transfer

In 2015 and 2016, atmospheric transport modeling challenges were conducted in the context of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) verification, however, with a more limited scope with respect to emission inventories, simulation period and number of relevant samples (i.e., those above the Minimum Detectable Concentration (MDC)) involved. Therefore, a more comprehensive atmospheric transport modeling challenge was organized in 2019. Stack release data of Xe-133 were provided by the Institut National des Radioéléments/IRE (Belgium) and the Canadian Nuclear Laboratories/CNL (Canada) and accounted for in the simulations over a three (mandatory) or six (optional) months period. Best estimate emissions of additional facilities (radiopharmaceutical production and nuclear research facilities, commercial reactors or relevant research reactors) of the Northern Hemisphere were included as well. Model results were compared with observed atmospheric activity concentrations at four International Monitoring System (IMS) stations located in Europe and North America with overall considerable influence of IRE and/or CNL emissions for evaluation of the participants' runs. Participants were prompted to work with controlled and harmonized model set-ups to make runs more comparable, but also to increase diversity. It was found that using the stack emissions of IRE and CNL with daily resolution does not lead to better results than disaggregating annual emissions of these two facilities t...