| Station | Variable | Z value |
| Pingshan | Q | 0.93 |
| V | 1.13 | |
| Lijiawan | Q | −3.14 |
| V | −3.60 | |
| Beibei | Q | −1.09 |
| V | −2.28 | |
| Yichang | Q | −1.01 |
| V | −0.35 |