Test Site

Philip’s model

Horton’s model

Green-Ampt’s model

Kostiakov’s model

coefficient of correlation (C.C)

P10 - P11

0.993

0.9477

0.8986

0.9838

P1 - P2

0.9663

0.9079

0.9833

0.9255

P13 - P4

0.9863

0.8941

0.985

0.9242

P1 - P9

0.9921

0.9597

0.9139

SS0.9789

P6 - P9

0.9783

0.9289

0.9833

0.9789

P7 - P8

0.9955

0.9378

0.9536

0.9746

Average

0.9852

0.9294

0.9529

0.9522

Root means square error (RMSE)

P10 - P11

9.5465

39.8549

35.3858

127.1988

P1 - P2

1.9409

3.5617

1.3734

4.3387

P13 - P4

1.91

7.3604

1.9929

25.0485

P1 - P9

0.967

4.354

3.1239

10.687

P6 - P9

2.215

5.7666

1.942

9.6733

P7 - P8

7.4405

44.0367

23.6221

122.1226

Average

4.0033

1.7489

11.24

49.8448

Mean absolute error (MAE)

P10 - P11

7.1456

35.2567

32.7114

121.52

P1 - P2

1.6478

2.7967

1.1234

3.9711

P13 - P4

1.3022

6.6778

3.9716

23.7778

P1 - P9

0.7733

4.0167

2.8773

9.9289

P6 - P9

1.746

5.041

1.5755

93.573

P7 - P8

6.19

42.0922

21.6556

116.0711

Average

3.1341

15.9802

10.6525

61.4736

Mean bias error (MBE)

P10 - P11

0.1944

14.6522

−0.0034

121.52

P1 - P2

0.0189

1.6278

0.0033

2.3867

P13 - P4

0.0267

3.6978

0.0015

23.7778

P1 - P9

0.02

3.0344

−0.003

9.9289

P6 - P9

0.026

4.175

−0.003

8.438

P7 - P8

0.1856

30.2656

0

116.0711

Average

0.0786

9.5755

−0.0007

47.0204