The stochastic process of changing the concentration of ammonia nitrogen in the Desna river
DOI:
https://doi.org/10.15407/dopovidi2016.10.060Keywords:
Kolmogorov—Fokker—Planck equation, Ornstein—Uhlenbeck process, probability categories of water quality, stochastic processAbstract
The stochastic process of change in the concentration of ammonia nitrogen in the Desna river for the period 1991—2003 is restored within adequate analytical models. We calculate the probability of the categories of water quality in the annual sections of the process. By solving the Kolmogorov—Fokker—Planck equation for the Ornstein—Uhlenbeck process, the reliable estimation of probability categories of the water quality, which is limited by 285 days, is determined in advance.
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