RESULTS OF ORDINARY LENGTHENING OBSERVATIONS THE PRECIPITATION׳S ACIDITY IN TVER

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Authors

F.V. Kachanovsky

Abstract

Analysis had made of dynamics of the precipitation acidity (atmospheric precipitation had fallen in Tver in 1990–2021 years). Time series models of the indicator pH and her evolution were examined. Qubic model have considered as adequate. Trend, cyclic component and seasonal indices of the indicator pH preserved his character in spite of time series lengthening.

Keywords

acidity, acid rain, precipitation, model, time series, trend, cyclic component, seasonal component, residuals, indicator pH