Fig. 3: Multidecadal variability of Antarctic SIE in SPEAR_LO and SPEAR_MED control simulations.
From: Antarctic sea ice multidecadal variability triggered by Southern Annular Mode and deep convection
a Wavelet power spectrum (color) of detrended Antarctic SIE anomalies for the 3000-yr SPEAR_LO CTL simulation. The power density is normalized by its variance (\({\sigma }^{2}\)). Black contour encloses regions with 95% confidence level of the normalized power density using a chi-squared test. b, Same as in (a), but for the 3000-yr SPEAR_MED CTL simulation. c Fourier power spectra of the detrended Antarctic SIE anomalies for the 3000-yr SPEAR_LO (red) and SPEAR_MED (blue) CTL simulations. The power density is normalized by its variance (\({\sigma }^{2}\)). Dashed lines correspond to 95% confidence levels of the normalized power density using a chi-squared test. d Probability distributions (%) of the standardized Antarctic SIE anomalies (\(\sigma\)) for the 3000-yr SPEAR_LO (red) and SPEAR_MED (blue) CTL simulations.
