Synchronisation between Dengue Incidence in Bangkok and in the Rest of Thailand

<div><p>The incidence series are square root transformed, and all series are normalised.</p> <p>(A) Wavelet coherence computed based on the Morlet wavelet function between dengue incidence in Bangkok and in the rest of Thailand; colours as in <a href="http://www.plosmedicine.org/article/info:doi/10.1371/journal.pmed.0020106#pmed-0020106-g001" target="_blank">Figure 1</a>B. The white dashed lines show the α = 5% significance level computed based on 1,000 bootstrapped series.</p> <p>(B) Oscillating components computed with the wavelet transform in the 2–3-y period band (colours as in <a href="http://www.plosmedicine.org/article/info:doi/10.1371/journal.pmed.0020106#pmed-0020106-g001" target="_blank">Figure 1</a>A).</p> <p>(C) Oscillating components computed with the wavelet transform in the 0.8–1.2-y period band (colours as in <a href="http://www.plosmedicine.org/article/info:doi/10.1371/journal.pmed.0020106#pmed-0020106-g001" target="_blank">Figure 1</a>A).</p> <p>In (B) and (C) the black line shows the time evolution of the instantaneous time delay in months (Δ<i>T</i>) between the oscillating components of the two incidence time series.</p></div