Comments

There is an errata page at the wavelet website maintained at the Program in Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Colorado, which is accessible at http://paos.colorado.edu/research/wavelets/errata.html

A Practical Guide to Wavelet Analysis

Christopher Torrence and Gilbert P. Compo (Program in Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Colorado)

Errata

• Figure 3: N/(2 sigma^2) should just be N/sigma^2.
• Equation (17), left-hand side: Factor of 1/2 should be removed.
• Table 1, DOG, Psi-hat (third column, bottom row): Should be a minus sign in front of the equation.
• Sec 3f, last paragraph: Plugging N=506, dt=1/4 yr, s0=2dt, and dj=0.125 into Eqn (10) actually gives J=64, not J=56 as stated in the text. However, in Figure 1b, the scales are only plotted out to J=56 since the power is so low at larger scales.

Additional information

Table 3: Cross-wavelet significance levels, from Eqn.(30)-(31). (DOF = degrees of freedom)

Significance level	Real wavelet (1 DOF)	Complex wavelet (2 DOF)
0.10	1.595	3.214
0.05	2.182	3.999
0.01	3.604	5.767