If we get negative value of Nash Sutcliffe Coefficient (NSC) in a forecasting hydrodynamic model, what does it show?

I have run a hydrological & hydrodynamic model of a river system for 72 hours time lag using MIKE 11 software. When I evaluate the performance of the model for 24, 48 & 72 hours, the R...

17 August 2020 3,300 8 View