Urban working groups in the IAEA’s model testing programmes: overview from the MODARIA I and MODARIA II programmes
- Oak Ridge Center for Risk Analysis, Oak Ridge, TN (United States)
- MEIS d.o.o, Smarje-Sap (Slovenia)
- Public Health England (United Kingdom)
- Canadian Nuclear Laboratories, Chalk River, ON (Canada)
- National Emergency Operations Centre (NEOC), Bern (Switzerland)
- Nuclear Facilities of Serbia, Vinca, Belgrade (Serbia)
- National Radiation Protection Institute (SURO), Prague (Czech Republic)
- Gottfried-Wilhelm-Leibniz University Hannover (Germany)
- Korea Atomic Energy Research Institute (KAERI), Daejeon (Korea, Republic of)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- SOGIN S.p.A., Rome (Italy)
- Commissariat al’Energie Atomique et aux Energies Alternatives (CEA), Bruyères-le-Chatel (France)
- Federal Office for Radiation Protection, Munich (Germany)
- Israel Atomic Energy Commission (IAEC), Yavne (Israel)
- Technical University of Vienna (Austria)
- National Science and Technology Development Agency, Pathum Thani (Thailand)
- Japan Atomic Energy Agency (JAEA), Ibaraki-Ken (Japan)
- DSO National Laboratories (Singapore)
- International Atomic Energy Agency (IAEA), Vienna (Austria)
The IAEA’s model testing programmes have included a series of Working Groups concerned with modelling radioactive contamination in urban environments. These have included the Urban Working Group of Validation of Environmental Model Predictions (1988–1994), the Urban Remediation Working Group of Environmental Modelling for Radiation Safety (EMRAS) (2003–2007), the Urban Areas Working Group of EMRAS II (2009–2011), the Urban Environments Working Group of (Modelling and Data for Radiological Impact Assessments) MODARIA I (2013–2015), and most recently, the Urban Exposures Working Group of MODARIA II (2016–2019). The overarching objective of these Working Groups has been to test and improve the capabilities of computer models used to assess radioactive contamination in urban environments, including dispersion and deposition processes, short-term and long-term redistribution of contaminants following deposition events, and the effectiveness of various countermeasures and other protective actions, including remedial actions, in reducing contamination levels, human exposures, and doses to humans. This paper describes the exercises conducted during the MODARIA I and MODARIA II programmes. These exercises have included short-range and mid-range atmospheric dispersion exercises based on data from field tests or tracer studies, hypothetical urban dispersion exercises, and an exercise based on data collected after the Fukushima Daiichi accident. We report improvement of model capabilities will lead to improvements in assessing various contamination scenarios (real or hypothetical), and in turn, to improved decision-making and communication with the public following a nuclear or radiological emergency.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Environment, Health, Safety and Security (AU)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1847922
- Journal Information:
- Journal of Radiological Protection, Vol. 42, Issue 2; ISSN 0952-4746
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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