Abstract
Atmospheric dispersion simulations can provide crucial information to assess radioactive plumes in the environment for nuclear emergency preparedness. However, it is a difficult and time-consuming task to make simulations assuming many possible scenarios and to derive data from a vast number of results. Therefore, an interface was developed to assist users in conveying telltale characteristics of plumes from a large database of simulation results by WSPEEDI-II. Evaluation of the effectiveness of the interface was conducted, which made use of WSPEEDI-II simulations that are in time segments of 1-hour for the first 20-days of radioactive release from the Fukushima Daiichi Nuclear Power Plant (1F). As a result, 480 case scenarios are generated. To simplify and highlight the important data, the user interface displays essential quantitative data to the user. In addition, the user may conduct sensitivity analysis with the help of the interface by changing the input of time and type of radionuclide to generate many different case scenarios.
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