Figure 2From: Investigation of the intraseasonal oscillations over a Brazilian equatorial station: a case studyAdjusted wavelet spectra of the zonal wind in terms of the spectral power (m2/s2/day). At (a) 90 km, (b) 87 km, (c) 84 km, and (d) 81 km at Cariri. The bold lines denote 95% significance level.Back to article page