Research Article
Analysis of Nonstationary Change of Annual Maximum Level Records in the Yangtze River Estuary
Table 4
Trend and autocorrelation test results for subseries before and after the change-point in 5 stations.
| Station | Subseries before change-point | Subseries after change-point | SRC test | MK test | Autocorrelation test | SRC test | MK test | Autocorrelation test | Test statistic | Test result | Test statistic | Test result | Autocorrelation coefficients | Test result | Test statistic | Test result | Test statistic | Test result | Autocorrelation coefficients | Test result |
| Jiangyin | –1.267 | 0 | –1.124 | 0 | –0.093 | √ | –0.018 | 0 | 0.094 | 0 | 0.165 | √ | Tianshenggang | –0.709 | 0 | –0.678 | 0 | –0.192 | √ | 0.899 | 0 | 0.882 | 0 | 0.176 | √ | Xuliujing | –0.570 | 0 | –0.571 | 0 | –0.199 | √ | 0.159 | 0 | 0.169 | 0 | 0.128 | √ | Wusong | 0.438 | 0 | 0.482 | 0 | –0.244 | √ | 0.079 | 0 | 0.169 | 0 | 0.036 | √ | Waigaoqiao | 0.218 | 0 | 0.375 | 0 | –0.229 | √ | 0.243 | 0 | 0.300 | 0 | 0.017 | √ |
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“0” indicates “no trend”, “1” indicates “upward trend”, “−1” indicates “downward trend”, and “√” indicates “independence”.
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