Effect of riverflow regime and degree of its natural regulation on parameters of river basin dynamical systems

A river basin is considered as a complex non-linear dynamical system (chaotic, in general), generating long-term riverflow time series at the basin outlet. Some dynamical parameters are used for characterization of system behaviour. Effect of riverflow regime and degree of natural flow regulation on dynamical parameters values has been investigated in the study. It has been shown that the values of the time delay т and correlation dimension D of 7 Siberian highland and lowland rivers time series are strongly dependent on the cp coefficient, reflecting the proportion of basic flow in total volume of annual riverflow.

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