Table 3.
Rainfall characteristics of the eight meteorological stations from May to October of 2013 in the Yanhe Watershed.
| Month | Yanan | Ansai | Yanchang | Jingbian | Zhidan | Zichang | Yanchuan | Ganquan | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tr a | Rr b | Tr | Rr | Tr | Rr | Tr | Rr | Tr | Rr | Tr | Rr | Tr | Rr | Tr | Rr | |
| May | 29 | 26 | 3 | 8 | 40 | 19 | 20 | 52 | ||||||||
| June | 141 | 51 (1) c | 150 | 65 | 140 | 156 | 127 | 89 | 109 | 50 (1) | ||||||
| July | 793 | 568 (8) | 524 | 232 (3) | 327 | 213 (3) | 488 | 231 (4) | 545 | 212 (3) | 436 | 126 (2) | 666 | 383 (5) | 488 | 231 (3) |
| August | 262 | 59 (1) | 205 | 120 (2) | 98 | 213 | 54 (2) | 218 | 80 (1) | 143 | 80 | 213 | ||||
| September | 94 | 117 | 100 | 152 | 147 | 138 | 156 | 148 | ||||||||
| October | 38 | 23 | 19 | 37 | 22 | 27 | 24 | 30 | ||||||||
| Total | 1357 | 678 (10) | 1045 | 352 (5) | 612 | 213 (3) | 1038 | 285 (6) | 1128 | 292 (4) | 890 | 126 (2) | 1035 | 383 (5) | 1040 | 281 (4) |
a Total rainfall (mm) at each meteorological station in each month. b Rainfall (mm) from individual rainfall events greater than 50 mm at each meteorological station in each month. c Data in parentheses indicate the number of rainstorm events.