Table 5.
Results of the non-parametric Mann–Kendall test when applied to the average annual minimum (Tmin), maximum (Tmax), mean (Tm) values of atmospheric temperature, and sea surface temperature (SST) datasets available for Rapa between 1960 and 2016. This test was used to detect monotonic trends in the data series. The H0 hypothesis states that temperature data come from a population with independent measures and are identically distributed, whereas the HA hypothesis states temperature data follow a monotonic trend.
| Temperature Data Series | Kendall’s Tau | 2-Sided p Value | Alpha | Conclusion |
|---|---|---|---|---|
| Tmax | 0.202 (2.14) | 3.2 × 10−2 | 0.05 | HA |
| Tmin | 0.473 (5.07) | 3.58 × 10−7 | 0.05 | HA |
| Tmean | 0.347 (3.71) | 2.1 × 10−4 | 0.05 | HA |
| SST (ERSSTv5) | 0.067 (0.71) | 0.48 | 0.05 | H0 |