Table 1.
Correlations between the δ18OTR record and local and large-scale (Amazon-wide) variations in climate for the period 1970–2014
| Climate Variable | Pearson’s r | (detrended) | Season (months) |
|---|---|---|---|
| Local temperature | 0.40** | (0.24) | Dry (June–October) |
| Local rainfall | − 0.04 | (0.08) | Dry (June–October) |
| Amazon-wide rainfall | − 0.57*** | (− 0.44**) | Dry (June–October) |
| Amazon River discharge at Obidos | − 0.47* | (− 0.44**) | Low (August–November) |
| Amazon-wide OLR | 0.58*** | (0.55***) | Dry (June–October) |
| Amazon-wide temperature | 0.59*** | (0.27) | Dry (June–October) |
| TNA sea surface temperature | 0.49*** | (0.34*) | (February–June) |
| Nino3.4 sea surface temperature | 0.38* | (0.45**) | (February–June) |
| Partial correlations | |||
| Amazon-wide rainfall, controlled for local T | − 0.41** | Dry (June–October) | |
| Local Temperature, controlled for Amazon rainfall | 0.15 | Dry (June–October) | |
Pearson correlations, or partial correlations for raw and detrended climate and δ18Otr are shown. Asterisks indicate the significance levels < 0.05*, < 0.01**, < 0.001***