Figure 4
Wavelet transform of the AP percentages of the Gulf of Gaeta pollen record. The data were previously detrended and smoothed (a) using PAST 3.1 software program64. The wavelet transform was performed using the on-line interactive wavelet plot of the University of Colorado (http://paos.colorado.edu/research/wavelets/). The dashed lines shown by the Wavelet Power Spectrum (b) and Global Wavelet (c) graphs mark the 99% significance level of the variance. The black solid line in the Wavelet Power Spectrum (b) indicates the cone of influence.
