Regularities of Hydrochemical Dynamics in a Two-Dimensional Turbulent Flow of Natural Water

• Published in: Doklady earth sciences Vol. 512; no. 1; pp. 892 - 897
• Main Authors: Danilov-Danilyan, V. I., Rosenthal, O. M.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-09-2023; Springer; Springer Nature B.V
• Subjects: Earth and Environmental Science; Earth Sciences; Fluid dynamics; Hydrochemicals; Leaching; Natural waters; Problems of Inland Waters; Subsystems; Turbidity; Turbulent flow; Two dimensional flow; Variation; Water quality; Water use; Weathering; quasi-cyclic variations; hydrochemical dynamics; turbidity; pH value; stratification; quality variations; energy cascades; natural waters
• ISSN: 1028-334X; 1531-8354
• DOI: 10.1134/S1028334X23601025

Variations in the composition and properties of natural waters, which creates numerous difficulties in water use, cannot always be explained by the influence of external forcing such as weathering or leaching of rocks, changes in the phases of the water regime, and other causes. This is especially true for sub-daily and sub-hourly variations in the water quality, which can be caused by complex, previously unknown dynamic hydrochemical processes. Such a conclusion follows from study of the turbidity and pH of natural water measured with increased frequency, the results of which are presented in this work. These results provide evidence about the existence of quasi-cyclic variations in the controlled parameters with different periods, from minute to daily. Study of the observational data allows us to assume that in this case the hydrochemical dynamics is caused by direct and reverse energy cascades in a two-dimensional turbulent flow of natural water, in which the impurity subsystem may be stratified.