The number and frequency of abrupt changes identified using the Mann–Kendall test are shown in Figure 6 and Table 3.
Close modal
Table 3
Abrupt precipitation changes in the YRB during different decades
| Year | Lanzhou section | Toudaoguai section | Huayuankou section | Lijin section | Abrupt changes |
|---|---|---|---|---|---|
| 1960–1969 | 1 | – | 6 | 2 | 9 |
| 1970–1979 | – | 3 | 8 | 2 | 13 |
| 1980–1989 | 1 | 3 | 1 | – | 5 |
| 1990–2000 | 2 | 6 | 9 | 2 | 19 |
| Year | Lanzhou section | Toudaoguai section | Huayuankou section | Lijin section | Abrupt changes |
|---|---|---|---|---|---|
| 1960–1969 | 1 | – | 6 | 2 | 9 |
| 1970–1979 | – | 3 | 8 | 2 | 13 |
| 1980–1989 | 1 | 3 | 1 | – | 5 |
| 1990–2000 | 2 | 6 | 9 | 2 | 19 |
Figure 6
Abrupt changes detected by the Mann–Kendall method at the YRB meteorological stations.
Figure 6
Abrupt changes detected by the Mann–Kendall method at the YRB meteorological stations.