Contribution of JMA to the WMO Technical Task Team on Meteorological Analyses for Fukushima Daiichi Nuclear Power Plant Accident and Relevant Atmospheric Transport Modelling at MRI


Saito, K., T. Shimbori, R. Draxler, T., Hara, T., Toyoda, K. Nagata, T., Fujita, Y. Honda, M. Sakamoto, T. Kato, M. Kajino, T. Sekiyama, T.Y. Tanaka, T. Maki, H. Terada, M. Chino, T. Iwasaki, M. Hort, S. Leadbetter, G. Wotawa, D. Arnold, C, Maurer, A. Malo, R. Servranckx and P. Chen, 2015


MRI. Tech. Report, 225 pp, 2015 DOI:10.11483/mritechrepo.76


Abstract - The 2011 off the Pacific coast of Tohoku Earthquake (Great East Japan Earthquake) and tsunami occurred on 11 March 2011 and caused severe damage in Japan. The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) was asked to produce a scientific report for the General Assembly on the levels and effects of radiation exposure caused by the accident at the Fukushima Daiichi Nuclear Power Plant, and UNSCEAR requested the World Meteorological Organization (WMO) to develop a set of meteorological analyses for assessing the atmospheric transport, dispersion, and deposition of radioactive materials. In response to UNSCEARís request, the WMOís Commission for Basic Systems convened a technical task team of experts from five countries (Austria, Canada, Japan, United Kingdom, and the United States) in November 2011. The primary aim of this team was to examine how the use of meteorological analyses could improve atmospheric transport, dispersion, and deposition model (ATDM) calculations. This technical report describes JMAís contribution to the WMO Task Team and summarizes the Task Team activities and relevant ATDM modeling carried out at the Meteorological Research Institute (MRI) of JMA (


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