Search - Number 7 - PREDICTION OF VOLUME ACTIVITY OF 137Cs IN THE GROUND LAYER OF ATMOSPHERE IN 30 KM EXCLUSIVE ZONE OF CHNPP

PREDICTION OF VOLUME ACTIVITY OF 137Cs IN THE GROUND LAYER OF ATMOSPHERE IN 30 KM EXCLUSIVE ZONE OF CHNPP
Cover not present PREDICTION OF VOLUME ACTIVITY OF 137Cs IN THE GROUND LAYER OF ATMOSPHERE  IN 30 KM EXCLUSIVE ZONE OF CHNPP
Category: Number 7
Publication: 7
Summary

The analysis of nonstationarity of change in time the mean volume activities 137Cs from data of measuring in Pripyat with 1987 was conducted. It is shown that fluctuations of volume activities long-term correlated, have the expressed cyclic constituent with 1 year period and log-normally distributed. Dependences were got for description of the determined constituent of change of mean volume activities for 1987 -1991 in combination with the modeling of casual constituent of process on the basis of log-normal probability distribution allowed to give the long-term forecast of activity up to 2009. There were conducted verification of prediction results from independent data after 1992., 1994