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 |