Table 3 Performance metrics of the selected bias correction methods for downscaling of rainfall.

From: Projection of meteorological droughts in Nigeria during growing seasons under climate change scenarios

GCM

Method

NRMSE

PBIAS

NSE

RSD

MD

CESM1-CAM5

GCM

80.5

−19.3

0.35

1.11

0.67

SCL

40.6

−2.5

0.83

0.97

0.83

GEQM

53.6

−100

−0.01

0

0.66

PT

53.6

−2.9

0.71

0.92

0.75

GAQM

46.7

−2.9

0.78

0.94

0.81

CSIRO-Mk3.6.0

GCM

80.7

−41.9

0.34

0.65

0.65

SCL

45

1.3

0.80

0.93

0.81

GEQM

100.5

−100

0

−0.02

0.65

PT

48.6

1.9

0.76

0.97

0.78

GAQM

40.6

2.3

0.83

0.99

0.84

HadGEM2-ES

GCM

40.9

−12.9

0.83

0.98

0.83

SCL

33.9

−7.0

0.88

0.92

0.86

GEQM

100

−100

−0.01

0

0.66

PT

50.1

−8.8

0.75

0.85

0.78

GAQM

41.4

−7.9

0.83

0.87

0.83

MRI-CGCM3

GCM

56.6

23.2

0.68

1.21

0.81

SCL

29.7

−0.3

0.91

1.01

0.88

GEQM

100

−100

−0.01

0

0.66

PT

45.8

−1.6

0.79

0.96

0.79

GAQM

38.1

2.4

0.85

0.94

0.85

  1. The best statistics are boldfaced.