Table 1 Linear regression equation and correlation coefficient between annual mean and monthly coral Sr/Ca and NOAA OISSTv2 centered at Enggano Island (5°S, 102°E) for the time period 1982–2008 and the mean equation from17 for comparison.
Coral core | Regression equation | r (r2) | p | σ | n |
---|---|---|---|---|---|
[Sr/Ca = slope(± standard error) x SST + intercept(± standard error)] | |||||
Annual | |||||
PB | Sr/Ca = − 0.061(± 0.01) × SST + 10.607(± 0.30) | 0.76 (0.58) | ≪ 0.01 | 0.014 | 26 |
KN2 | Sr/Ca = − 0.075(± 0.01) × SST + 11.077(± 0.37) | 0.76(0.58) | ≪ 0.01 | 0.024 | 26 |
Enggano | Sr/Ca = − 0.068(± 0.01) × SST + 10.821(± 0.28) | 0.81(0.66) | ≪ 0.01 | 0.015 | 26 |
Monthly | |||||
PB | Sr/Ca = − 0.045(± 0.002) × SST + 10.119(± 0.07) | − 0.71(0.50) | ≪ 0.01 | 0.038 | 322 |
KN2 | Sr/Ca = − 0.054(± 0.003) x SST + 10.257(± 0.09) | − 0.71(0.50) | ≪ 0.01 | 0.046 | 322 |
Enggano | Sr/Ca = − 0.047(± 0.003) × SST + 10.208(± 0.08) | − 0.67(0.45) | ≪ 0.01 | 0.035 | 322 |
Mean Equation (Corrège, 2006) | Sr/Ca = − 0.0607 × SST + 10.553 |