Quantifying Nonstationary Radioactivity Concentration Fluctuations Near Chernobyl: A Complete Statistical Description
Statistical Mechanics
2009-10-31 v1
Abstract
We analyze nonstationary Cs atmospheric activity concentration fluctuations measured near Chernobyl after the 1986 disaster and find three new results: (i) the histogram of fluctuations is well described by a log-normal distribution, (ii) there is a pronounced spectral component with period T=1 y, and (iii) the fluctuations are long-range correlated. These findings allow us to quantify two fundamental statistical properties of the data - the probability distribution and the correlation properties of the time series. We interpret our findings as evidence that the atmospheric radionuclide resuspension processes are tightly coupled to the surrounding ecosystems and to large time scale weather patterns.
Cite
@article{arxiv.cond-mat/0005332,
title = {Quantifying Nonstationary Radioactivity Concentration Fluctuations Near Chernobyl: A Complete Statistical Description},
author = {G. M. Viswanathan and S. V. Buldyrev and E. K. Garger and V. A. Kashpur and L. S. Lucena and A. Shlyakhter and H. E. Stanley and J. Tschiersch},
journal= {arXiv preprint arXiv:cond-mat/0005332},
year = {2009}
}
Comments
13 pages