| YSa (A1)b | KM (A2) | CD (B) | CQ (C, D) | ZY (E) | CS (H) | WH (G, F) | NC (I) | NJ (J) | SH (K) |
---|---|---|---|---|---|---|---|---|---|---|
Area for each sub-basin (× 104 km2) | ||||||||||
 | 21.42 | 28.05 | 16.34 | 26.52 | 7.59 | 25.24 | 25.47 | 15.64 | 10.53 | 3.21 |
Precipitation (mm) for selective meteorological stations in each sub-basin | ||||||||||
 Jan | 4.0 | 13.5 | 9.1 | 19.3 | 23.4 | 75.6 | 40.4 | 67.0 | 36.8 | 66.2 |
 Feb | 4.5 | 12.3 | 8.3 | 21.1 | 21.9 | 91.5 | 62.6 | 99.9 | 52.7 | 63.2 |
 Mar | 8.6 | 16.5 | 25.0 | 42.6 | 38.4 | 142.4 | 97.2 | 172.1 | 75.0 | 89.7 |
 Apr | 14.5 | 22.8 | 35.5 | 92.9 | 85.5 | 182.9 | 137.5 | 216.7 | 82.9 | 68.5 |
 May | 54.6 | 89.8 | 104.9 | 152.2 | 147.0 | 200.1 | 169.0 | 256.0 | 92.4 | 82.6 |
 Jun | 99.5 | 175.4 | 111.7 | 180.0 | 195.9 | 224.8 | 216.4 | 292.0 | 164.2 | 175.7 |
 Jul | 102.0 | 204.6 | 224.6 | 160.0 | 149.9 | 151.7 | 191.6 | 128.6 | 197.2 | 134.6 |
 Aug | 87.2 | 196.0 | 170.3 | 133.5 | 126.4 | 108.5 | 120.1 | 112.5 | 129.8 | 202.2 |
 Sep | 74.7 | 117.2 | 119.3 | 123.4 | 93.3 | 82.1 | 83.3 | 70.9 | 81.4 | 79.5 |
 Oct | 28.8 | 83.4 | 47.0 | 92.1 | 102.1 | 66.5 | 71.1 | 54.4 | 51.1 | 61.3 |
 Nov | 2.9 | 35.9 | 15.3 | 48.1 | 48.1 | 76.2 | 53.2 | 65.4 | 49.9 | 51.0 |
 Dec | 1.7 | 13.1 | 6.2 | 24.3 | 24.0 | 49.1 | 28.8 | 46.5 | 28.9 | 43.4 |