skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Urban working groups in the IAEA’s model testing programmes: overview from the MODARIA I and MODARIA II programmes

Journal Article · · Journal of Radiological Protection
ORCiD logo [1];  [2]; ORCiD logo [3];  [4]; ORCiD logo [5];  [2];  [6]; ORCiD logo [7];  [8];  [7];  [9];  [10];  [4];  [7];  [9];  [11];  [2];  [12]; ORCiD logo [13];  [14] more »;  [15]; ORCiD logo [16]; ORCiD logo [17];  [18];  [13]; ORCiD logo [19];  [10] « less
  1. Oak Ridge Center for Risk Analysis, Oak Ridge, TN (United States)
  2. MEIS d.o.o, Smarje-Sap (Slovenia)
  3. Public Health England (United Kingdom)
  4. Canadian Nuclear Laboratories, Chalk River, ON (Canada)
  5. National Emergency Operations Centre (NEOC), Bern (Switzerland)
  6. Nuclear Facilities of Serbia, Vinca, Belgrade (Serbia)
  7. National Radiation Protection Institute (SURO), Prague (Czech Republic)
  8. Gottfried-Wilhelm-Leibniz University Hannover (Germany)
  9. Korea Atomic Energy Research Institute (KAERI), Daejeon (Korea, Republic of)
  10. Argonne National Lab. (ANL), Argonne, IL (United States)
  11. SOGIN S.p.A., Rome (Italy)
  12. Commissariat al’Energie Atomique et aux Energies Alternatives (CEA), Bruyères-le-Chatel (France)
  13. Federal Office for Radiation Protection, Munich (Germany)
  14. Israel Atomic Energy Commission (IAEC), Yavne (Israel)
  15. Technical University of Vienna (Austria)
  16. National Science and Technology Development Agency, Pathum Thani (Thailand)
  17. Japan Atomic Energy Agency (JAEA), Ibaraki-Ken (Japan)
  18. DSO National Laboratories (Singapore)
  19. 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

References (8)

Improvement of modelling capabilities for assessing urban contamination: The EMRAS Urban Remediation Working Group journal November 2008
Mid-range atmospheric dispersion modelling. Intercomparison of simple models in EMRAS-2 project journal October 2016
Air pollution dispersion models validation dataset from complex terrain in Šoštanj journal January 2015
Assessing emergency situations and their aftermath in urban areas: The EMRAS II Urban Areas Working Group journal January 2011
Modelling the long-term consequences of a hypothetical dispersal of radioactivity in an urban area including remediation alternatives journal June 2009
Modelling of a large-scale urban contamination situation and remediation alternatives journal May 2009
Field tests using radioactive matter journal January 2010
Modelling remediation options for urban contamination situations journal July 2009