Table 17 Error obtained after testing at 0.01 % of time using average coefficient sets
From: Rain rate modeling of 1-min from various integration times in South Korea
Models | 5–1 min | 10–1 min | 20–1 min | 30–1 min | 60–1 min | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Error \(\upvarepsilon\) (%) | RMSE (%) | Error \(\upvarepsilon\) (%) | RMSE (%) | Error \(\upvarepsilon\) (%) | RMSE (%) | Error \(\upvarepsilon\) (%) | RMSE (%) | Error \(\upvarepsilon\) (%) | RMSE (%) | |
ITU-R P.837-6 | −10.56 | 8.43 | −12.68 | 10.12 | 54.44 | 43.44 | 117.52 | 93.78 | 121.25 | 96.76 |
Segal | −2.00 | 1.60 | 4.24 | 3.38 | 34.21 | 27.30 | 41.42 | 33.05 | 35.51 | 28.33 |
Burgueno et al. | 61.61 | 49.17 | 234.47 | 187.10 | 413.62 | 330.07 | 486.52 | 388.24 | 576.39 | 459.96 |
Chebil and Rahman | −4.41 | 3.52 | −300.65 | 239.92 | −42.01 | 33.52 | −134.33 | 107.20 | 3.14 | 2.51 |
Logarithmic | −5.59 | 4.46 | −7.72 | 6.16 | −9.33 | 7.44 | −5.00 | 3.99 | −2.10 | 1.68 |
Global coefficients | −3.22 | 2.57 | 3.56 | 2.84 | 17.62 | 14.06 | 38.71 | 30.89 | 99.88 | 79.70 |
Second order polynomial fit | −4.58 | 3.65 | −3.36 | 2.68 | −3.58 | 2.86 | 1.26 | 1.00 | 6.73 | 5.37 |
Third order polynomial fit | −4.74 | 3.78 | −3.28 | 2.61 | −2.47 | 1.97 | 2.09 | 1.66 | 8.83 | 7.04 |
Model 1 | −5.01 | 4.00 | −5.21 | 4.16 | −6.27 | 5.00 | −7.32 | 5.84 | −90.30 | 72.06 |
Model 2 | −6.30 | 5.03 | −7.83 | 6.24 | −9.10 | 7.26 | −12.92 | 10.31 | −11.99 | 9.57 |
Model 3 | −8.59 | 6.86 | −60.01 | 47.89 | −91.15 | 72.74 | −198.60 | 158.48 | −411.29 | 328.21 |