5:15 PM - 6:30 PM
[MAG24-P04] Correlation-study about the ambient dose rate and the weather conditions
Keywords:Fukushima Accident, Radioactive nuclides, Karman Filter
In this study, we study the correlation between the weather conditions and the ambient dose rate with the correction of the decrease due to the radioactive decay. We found that there is a negative correlation between the ambient dose rate and the soil water content by the correlation coefficient. Using this result, we reconstruct the ambient dose rate from the weather conditions by the multiple regression analysis and found that the reconstructed data agree with the observation very well. Using Kalman filter, which can be sequentially updates the state estimate, we obtained such a good agreement.