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 |