Return period (yr)

Subarnarekha

Baitarani

Bramhani

Mahanadi

Vansadhara

Godavari

Krishna

Pennar

Ponniyar

Cauvery

Vaigai

Thamarparani

Bcum

Bcum

Bcum

Bcum

Bcum

Bcum

Bcum

Bcum

Bcum

Bcum

Bcum

Bcum

1.05

2.56

1.78

0.67

23.79

0.87

39.09

6.71

0.02

0.04

2.98

0

0.23

1.11

3.14

2.24

3.05

26.59

1.14

45.45

9.2

0.04

0.06

3.98

0

0.27

1.25

4.02

2.91

10.76

30.72

1.55

54.6

13.07

0.09

0.1

5.39

0.01

0.32

2

6.37

4.52

24.94

41.9

2.63

77.8

23.53

0.45

0.27

8.37

0.04

0.48

5

9.93

6.57

22.33

59.82

4.13

111.25

38.04

1.97

0.73

11.09

0.1

0.74

10

12.46

7.79

20

73.45

5.07

134.32

46.99

4.01

1.25

12.2

0.16

0.93

25

15.79

9.16

19.23

92.8

6.17

164.4

57.24

8.22

2.24

13.07

0.24

1.2

50

18.35

10.08

18.76

108.84

6.93

187.42

64.1

12.78

3.28

13.49

0.31

1.43

100

20.98

10.91

18.89

126.35

7.64

210.94

70.32

18.73

4.63

13.76

0.37

1.67

200

23.69

11.68

18.88

145.52

8.3

235.2

75.99

26.29

6.37

13.95

0.44

1.93

500

27.39

12.6

18.87

173.79

9.11

268.41

82.71

39.02

9.41

14.12

0.53

2.32

1000

30.3

13.25

18.87

197.61

9.69

294.59

87.34

51.06

12.4

14.2

0.6

2.64

2000

33.3

13.84

18.87

223.79

10.23

321.79

91.58

65.26

16.2

14.26

0.66

2.99

5000

36.79

14.45

18.87

256.95

10.79

353.7

95.77

83.87

21.5

14.29

0.73

3.42

10,000

40.64

15.08

18.87

295.09

11.37

388.77

100.1

107.9

28.5

14.33

0.8

3.92

Skewness

−0.12

−0.59

−4.62

0.49

−0.57

0.04

−0.7

−0.34

0.11

−1.46

−0.7

0.25