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Table 13 Mean error obtained after testing over the 0.01 % of time

From: Rain rate modeling of 1-min from various integration times in South Korea

Methods

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

5.45

9.41

13.29

13.08

43.11

34.69

70.34

56.94

115.29

93.20

Segal

0.47

4.39

7.27

6.49

36.59

28.83

43.00

33.92

31.52

38.90

Burgueno et al.

65.69

51.27

244.27

192.28

423.08

337.37

492.93

394.16

584.09

467.14

Chebil and Rahman

−2.00

4.66

−306.48

242.16

−40.98

32.63

−134.72

106.91

4.01

10.69

Logarithmic

−3.21

4.95

−5.03

5.73

−7.72

6.90

−3.95

6.42

−1.27

10.61

Global coefficients

−0.78

4.35

6.62

6.24

19.75

15.90

40.20

32.46

102.34

82.44

Second order polynomial fit

−2.32

4.60

−0.60

4.17

−0.92

6.93

4.58

9.04

9.90

14.51

Third order polynomial fit

−2.40

4.49

−0.65

4.55

−0.70

8.10

4.43

11.06

0.96

13.06

Model 1

−2.68

4.71

−2.52

4.38

−4.51

7.28

−5.52

8.09

−116.26

95.74

Model 2

−3.89

1.31

−5.03

5.37

−7.09

8.06

−11.60

9.56

−10.30

14.62

Model 3

−6.45

6.12

−59.29

47.49

−91.32

72.89

−200.87

161.22

−421.44

339.14