Table 3 Statistical evaluation of the mean annual and kiremit season rainfall of Zarima subbasin (the statistical evaluation of kiremit season mean rainfall is written in brackets

Adiramets

BIAS

0.53 (0.22)

− 0.51 (− 0.94)

− 1.28 (− 1.49)

− 0.45 (− 0.71)

− 1.38 (− 2.00)

− 1.86 (− 2.04)

− 1.5 (− 1.93)

− 1.08 (− 1.46)

− 2.01 (− 2.12)

− 1.90 (− 2.11)

− 0.47 (− 0.81)

− 1.15 (− 1.48)

− 1.25 (− 1.65)

− 1.14 (− 1.46)

RMSE

247.54 (238.61)

263.54 (245.12)

291.39 (292.22)

332.77 (322.75)

261.17 (309.86)

386.65 (398.50)

368.39 (376.85)

310.37 (309.20)

426.25 (432.90)

322.58 (350.77)

180.88 (194.71)

197.14 (215.08)

208.82 (226.11)

180.16 (215.77)

r

0.76 (0.77)

0.68 (0.75)

0.72 (0.73)

0.61 (0.65)

0.82 (0.78)

0.73 (0.70)

0.76 (0.74)

0.64 (0.67)

0.71 (0.72)

0.78 (0.73)

0.87 (0.86)

0.88 (0.87)

0.87 (0.87)

0.89 (0.88)

CV

16.74 (17.84)

17.22 (18.09)

14.93 (15.83)

18.82 (20.42)

19.85 (21.62)

20.36 (22.67)

26.94 (28.21)

27.24 (28.39)

18.12 (19.39)

29.03 (31.87)

22.61 (24.74)

17.47 (18.79)

15.67 (16.99)

16.10 (17.50)

9.14 (9.14)

KGE

0.76 (0.77)

0.66 (0.72)

0.69 (0.69)

0.57 (0.59)

0.71 (0.64)

0.33 (0.34)

0.33 (0.35)

0.63 (0.66)

0.21 (0.16)

0.57 (0.52)

0.86 (0.85)

0.85 (0.85)

0.85 (0.85)

0.87 (0.85)

Debarik

BIAS

0.38 (− 0.15)

0.45 (− 0.47)

− 0.12 (0.08)

0.07 (0.03)

1.22 (0.60)

− 0.54 (-0.99)

− 0.10 (-0.21)

0.4 (− 0.21)

− 0.48 (− 0.61)

− 0.08 (− 0.23)

0.12 (− 0.11)

0.69 (− 0.33)

− 0.38 (− 0.51)

0.12 (− 0.22)

RMSE

167.39 (143.57)

139.47 (101.92)

145.73 (142.63)

146.93 (129.49)

136.59 (103.52)

189.87 (168.26)

160.95 (136.74)

186.88 (167.61)

206.89 (205.75)

129.11 (127.55)

127.76 (103.34)

103.59 (83.73)

142.11 (139.50)

84.11 (77.43)

r

0.90 (0.60)

0.91 (0.77)

0.87 (0.64)

0.90 (0.56)

0.95 (0.78)

0.86 (0.51)

0.88 (0.60)

0.89 (0.44)

0.85 (0.48)

0.93 (0.72)

0.92 ( 0.73)

0.94 (0.84)

0.91 (0.63)

0.96 (0.87)

CV

12.02 (12.23)

11.93 (13.63)

10.24 (10.99)

13.58 (14.33)

9.10 (9.56)

11.95 (10.89)

13.07 (14.10)

12.80 (12.49)

14.21 (13.44)

17.19 (18.73)

13.49 (14.68)

9.27 (9.57)

9.35 (9.11)

12.17 (13.48)

8.56 (13.44)

KGE

0.89 (13.58)

0.83 (0.75)

0.81 (0.60)

0.74 (0.51)

0.92 (0.71)

0.83 (0.48)

0.86 (0.60)

0.79 (0.44)

0.54 (0.26)

0.86 (0.66)

0.76 (0.66)

0.77 (0.70)

0.91 (0.61)

0.71 (0.72)

Ketema

BIAS

0.02 (0.02)

0.18 (1.57)

0.17 (− 2.02)

0.20 (1.01)

0.20 (1.56)

0.11 (− 2.24)

-0.02 (− 2.53)

0.17 (0.92)

0.04 (− 0.27)

0.09 (− 0.62)

0.07 (− 0.50)

0.18 (1.35)

0.11 (− 1.60)

0.12 (− 0.26)

niguse

RMSE

156.75 (135.76)

202.90 (180.83)

224.79 (201.65)

180.50 (159.84)

238.43 (149.41)

281.55 (256.70)

282.94 (259.73)

199.98 (145.27)

145.69 (132.76)

113.84 (119.35)

138.47 (118.40)

176.39 (114.90)

175.21 (152.87)

98.15 (94.13)

r

0.69 (0.71)

0.73 (0.62)

0.60(0.60)

0.68 (0.66)

0.73 (0.76)

0.41 (0.45)

0.48 (0.46)

0.72 (0.74)

0.72 (0.73)

0.84 (0.78)

0.75 (0.77)

0.84 (0.86)

0.71 (0.73)

0.88 (0.86)

CV

16.11 (16.34)

16.13 (16.18)

16.19 (16.18)

21.20 (20.56)

16.01 (15.99)

18.36 (15.87)

22.77 (24.73)

23.69 (24.78)

18.50 (17.18)

14.39 (16.18)

15.33 (15.01)

14.89 (14.43)

15.39 (13.49)

16.12 (16.34)

13.51 (13.44)

KGE

0.69 (0.71)

0.71 (0.61)

0.48 (0.52)

0.68 (0.65)

0.67 (0.75)

0.27 (0.24)

0.29 (0.25)

0.68 (0.73)

0.72 (0.72)

0.83 (0.76)

0.74 (0.74)

0.80 (0.77)

0.70 (0.72)

0.80 (0.77)

Maytsebri

BIAS

0.04 (0.04)

2.28 (2.29)

− 1.73 (2.47)

1.34 (2.91)

2.81 (2.99)

− 2.30(1.29)

-2.63 (− 0.79)

1.78 (2.25)

− 0.56 (0.21)

− 0.44 (0.83)

− 0.42 (0.72)

2.29 (2.51)

− 1.64 (1.32)

0.06 (1.46)

RMSE

246.86 (213.73)

290.77 (243.59)

328.52 (303.37)

271.66 (231.16)

260.65 (248.68)

320.84 (280.46)

153.11 (160.84)

229.88 (191.54)

202.34 (181.56)

184.67 (166.26)

176.86 (158.97)

218.55 (185.55)

251.72 (220.37)

181.65 (154.47)

r

0.73 (0.70)

0.64 (0.62)

0.71 (0.63)

0.70 (0.71)

0.75 (0.72)

0.70 (0.65)

0.70 (0.63)

0.68 (0.65)

0.71 (0.63)

0.72 (0.67)

0.76 (0.730

0.84 (0.81)

0.76 (0.69)

0.83 (0.80)

CV

14.82 (14.12)

32.66 (29.87)

23.86 (22.62)

30.27 (30.30)

19.63 (18.69)

19.89 (21.33)

34.12 (32.90)

21.88 (21.10)

16.07 (14.39)

26.49 (24.46)

21.08 (21.02)

23.02 (22.54)

16.27 (16.69)

28.32 (26.94)

20.72 (20.22)

KGE

− 0.23 (− 0.16)

0.27 (0.27)

− 0.1 (− 0.21)

0.52 (0.53)

0.53 (0.39)

− 0.34 (− 0.38)

0.44 (0.38)

0.63 (0.63)

0.16 (0.18)

0.49 (0.41)

0.39 (0.34)

0.74 (0.70)

0.05 (0.04)

0.55 (0.51)

Zarima

BIAS

− 0.08 (− 0.45)

− 0.96 (1.75)

− 16.27 (− 0.41)

− 6.97 (− 0.62)

0.16 (− 0.51)

− 16.01 (0.13)

"− 14.87 (0.95)

− 3.08 (-1.54)

− 17.93 (0.44)

1.30 (1.08)

0.25 (− 0.04)

− 0.92 (− 1.27)

0.25 (0.05)

0.00 (− 0.27)

RMSE

0.68 (258.79)

− 0.27 (248.25)

-0.15 (254.44)

− 0.23 (280.36)

0.00 (252.91)

− 0.03 (312.57)

− 0.09 (313.16)

− 0.18 (263.13)

− 0.06 (249.70)

0.80 (320.82)

0.86 (177.00)

0.93 (172.33)

0.84 (184.37)

0.95 (102.05)

r

0.68 (0.72)

0.69 (0.73)

0.69 (0.71)

0.79 (0.78)

0.74 (0.75)

0.76 (0.76)

0.72 (0.72)

0.77 (0.78)

0.67 (0.67)

0.80 (0.76)

0.86 (0.87)

0.93 (0.95)

0.84 (0.85)

0.95 (0.96)

CV

16.74 (17.84)

18.79 (17.75)

14.74 (16.24)

55.16 (16.82)

16.37 (23.55)

14.93 (18.73)

21.36 (25.04

48.91 (21.29)

14.75 (18.43)

89.76 (18.73)

22.17 (23.13)

17.80 (17.82)

13.87 (14.17)

17.03 (17.03)

15.26 (15.35)

KGE

0.66 (0.72)

0.66 (0.71)

− 1.43 (0.71)

0.62 (0.61)

0.72 (0.74)

0.18 (0.53)

− 1.06 (0.65)

0.71 (0.77)

− 3.45 (0.66)

0.61 (0.61)

0.84 (0.87)

0.81 (0.78)

0.84 (0.84)

0.90 (0.86)