Example of Fig 4.12
Spectrum of EOF
function [lam1, lam2]=example12 % % Spectrum for geopotential % flat = [-90 90]; flon = [0 360]; clf; [zt,ind,fcos]=readz500(flat,flon,'season','jfm','scaling','yes'); [z,sdz]=anomaly(zt,'anom'); [eof1,lam1,v,proj]=eoffast(z,ind,15,1); subplot(211) plot(lam1,'k*','markersize',5); axis([ 0 35 0 0.5]); title(' Spectrum of EOF -- Mean Subtracted','fontname','times') [z,sdz]=anomaly(zt,'none'); [eof1,lam2,v,proj]=eoffast(z,ind,15,1); subplot(212) plot(lam2,'k*','markersize',5) axis([ 0 35 0 1.2]); title(' Spectrum of EOF ','fontname','times') orient tall; print('-dpdf','-painters','-adobecset',['example12.pdf']);
Normalization anom
Expanded Field
No Normalization none
Expanded Field
ans =
0.2598
0.1703
0.1054
0.0657
0.0482
0.0427
0.0382
0.0334
0.0288
0.0251
0.0218
0.0193
0.0169
0.0156
0.0137
0.0122
0.0111
0.0092
0.0086
0.0069
0.0065
0.0063
0.0054
0.0049
0.0042
0.0036
0.0033
0.0030
0.0024
0.0022
0.0021
0.0019
0.0013
0.0000