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Progress in Earth and Planetary Science
Fig. 9 | Progress in Earth and Planetary Science

Fig. 9

From: A 2700-year record of ENSO and PDO variability from the Californian margin based on coccolithophore assemblages and calcification

Fig. 9

Cross spectral analysis (Blackman-Tukey) between the 2700 year records of coccolith mass of (Gephyrocapsa ericsonii, G. muelerae, E. huxleyi) and %G. oceanica in the Santa Barbara Basin. No-Zero coherence at 95% is higher than a confidence level of 0.705 (blue horizontal line). The bandwidth is 0.00093. Lengths of significant periods are indicated in the graph

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