The value of \(p<0.05\) means the time series divided by this point
(t) into two series have different distributions, which suggest
there is a significant step change point. Here, hydrological behavior of
the catchment is regarded as changed or shifted if the step change point
is identified in either SC or C time series with \(p<0.05\).
Evaluation of model
performance
The Nash-Sutcliffe efficiency (NSE) (Nash & Sutcliffe, 1970) and water
balance bias (BIAS) were used to evaluate model performance and were
calculated as: