Official Journal of the Asia Oceania Geosciences Society (AOGS)
Table 8 Periodicities detected in the time series of annual runoff and annual precipitation in 11 sub-basins in the Yangtze River basin (YRB, excluding Taihu Lake basin), and the gradation of their significance levels based on the correlation coefficient r
From: Correlation-aided method for identification and gradation of periodicities in hydrologic time series
No.a | Runoff | Precipitation | ||||||
|---|---|---|---|---|---|---|---|---|
T1 | Levelb (r) | T2 | Level (r) | T1 | Level (r) | T2 | Level (r) | |
1 | 9.2 | M (0.466) | 11.9 | N (0.017) | 11.7 | M (0.410) | 4.7 | N (0.012) |
2 | 29.6 | M (0.353) | 4.3 | N (0.156) | 4.3 | M (0.353) | 2.8 | N (0.076) |
3 | 7.5 | M (0.399) | 4.8 | N (0.005) | 4.8 | M (0.393) | 7.5 | N (0.011) |
4 | 9.3 | M (0.405) | 7.3 | N (0.053) | 9.4 | M (0.360) | 24.8 | N (0.047) |
5 | 24.6 | M (0.351) | 16.1 | N (0.015) | 4 | W (0.288) | 3.1 | N (0.060) |
6 | 3.1 | M (0.397) | 16.1 | N (0.121) | 16.2 | M (0.373) | 3.1 | N (0.062) |
7 | 24.1 | M (0.420) | 6.8 | W (0.266) | 23.2 | M (0.343) | 2.5 | N (0.056) |
8 | 6.8 | M (0.344) | 21.5 | N (0.221) | 3.1 | W (0.314) | 9 | N (0.221) |
9 | 21.8 | M (0.399) | 3.6 | N (0.239) | 21.4 | M (0.365) | 3.6 | N (0.129) |
10 | 6.7 | M (0.392) | 2.7 | N (0.247) | 6.7 | M (0.369) | 2.7 | N (0.215) |
11 | 6.7 | M (0.355) | 3.3 | W (0.297) | 6.7 | W (0.324) | 3.3 | W (0.308) |