Atmospheric Circulation Regimes in a Nonlinear Quasi-Geostrophic Model

Figure 9

(First column) global and (second column) local wavelet power spectra for the monthly averaged PC 1 of the geopotential height of the (top) 167 hPa, (middle) 500 hPa, and (bottom) 833 hPa model level. The contour lines give information on the relative power at a certain scale and a certain time. At both ends, dash-dotted lines separate regions where edge effects become important. The thick black contour envelopes areas of greater than 95% confidence for a corresponding red noise process. (Third column) global and (fourth column) local wavelet spectra for the monthly averaged PC 2 of the geopotential height of the (top) 167 hPa, (middle) 500 hPa, and (bottom) 833 hPa model level.