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Table 1 Model performance criteria in the calibration and validation phase

From: Assessment of current and future trends in water resources in the Gambia River Basin in a context of climate change

Calibration period (1981–1990)

Efficiency criteria

Nash–Sutcliffe (Q)

0.623

Nash–Sutcliffe (VQ)

0.778

Nash–Sutcliffe (ln(Q))

0.694

Balance sheet

1.314

Validation period 1 (1991–2000)

Efficiency criteria

Nash–Sutcliffe (Q)

0.711

Nash–Sutcliffe (VQ)

0.827

Nash–Sutcliffe (ln(Q))

0.711

Balance sheet

0.997

Validation period 2 (2001–2010)

Efficiency criteria

Nash–Sutcliffe (Q)

0.578

Nash–Sutcliffe (VQ)

0.800

Nash–Sutcliffe (ln(Q))

0.737

Balance sheet

0.926