Example of Fig 4.9

Covariance EOF

function example
%
%  EOF
%

flat = [0 90];
flon = [120 360];
lnorm = 'anom';
[zt,ind,fcos]=readz500(flat,flon,'season','jfm','scaling','yes');

[z,sdz]=anomaly(zt,lnorm);

[u,lam,v,proj]=eoffast(z,ind,34,1);

% PLot EOF  -----
titstr=cell(size(1:3));

modeindex=[ 1 2 3];
for i=1:3
ii=modeindex(i);
titstr{i} = [' EOF Mode ' num2str(ii) '    ' num2str(lam(ii)*100,'%-2.0f') '%'];
end
bigtit{1}= ['   ' ];
bigtit{2}= 'Covariance EOF';

pict3(bigtit,u(:,modeindex(1)),u(:,modeindex(2)), u(:,modeindex(3)), ...
    flat,flon,[-0.5:0.01:0.5],titstr,'shading','off');
print('-dpdf','-painters','example06.pdf');
Normalization anom
Expanded Field
Shading is  off 
Reshaping for T30 Gaussian grid
Contouring from a minimum -0.5000 
Contouring to a maximum 0.5000 
Contouring interval is  0.0100 
Contour values are: 
-0.5000 -0.4900 -0.4800 -0.4700 -0.4600 -0.4500 -0.4400 -0.4300 -0.4200 -0.4100 -0.4000 -0.3900 -0.3800 -0.3700 -0.3600 -0.3500 -0.3400 -0.3300 -0.3200 -0.3100 -0.3000 -0.2900 -0.2800 -0.2700 -0.2600 -0.2500 -0.2400 -0.2300 -0.2200 -0.2100 -0.2000 -0.1900 -0.1800 -0.1700 -0.1600 -0.1500 -0.1400 -0.1300 -0.1200 -0.1100 -0.1000 -0.0900 -0.0800 -0.0700 -0.0600 -0.0500 -0.0400 -0.0300 -0.0200 -0.0100 0.0000 0.0100 0.0200 0.0300 0.0400 0.0500 0.0600 0.0700 0.0800 0.0900 0.1000 0.1100 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1800 0.1900 0.2000 0.2100 0.2200 0.2300 0.2400 0.2500 0.2600 0.2700 0.2800 0.2900 0.3000 0.3100 0.3200 0.3300 0.3400 0.3500 0.3600 0.3700 0.3800 0.3900 0.4000 0.4100 0.4200 0.4300 0.4400 0.4500 0.4600 0.4700 0.4800 0.4900 0.5000 
Maximum field value 0.1135 
Minimum field value -0.0448 
Shading is  off 
Reshaping for T30 Gaussian grid
Contouring from a minimum -0.5000 
Contouring to a maximum 0.5000 
Contouring interval is  0.0100 
Contour values are: 
-0.5000 -0.4900 -0.4800 -0.4700 -0.4600 -0.4500 -0.4400 -0.4300 -0.4200 -0.4100 -0.4000 -0.3900 -0.3800 -0.3700 -0.3600 -0.3500 -0.3400 -0.3300 -0.3200 -0.3100 -0.3000 -0.2900 -0.2800 -0.2700 -0.2600 -0.2500 -0.2400 -0.2300 -0.2200 -0.2100 -0.2000 -0.1900 -0.1800 -0.1700 -0.1600 -0.1500 -0.1400 -0.1300 -0.1200 -0.1100 -0.1000 -0.0900 -0.0800 -0.0700 -0.0600 -0.0500 -0.0400 -0.0300 -0.0200 -0.0100 0.0000 0.0100 0.0200 0.0300 0.0400 0.0500 0.0600 0.0700 0.0800 0.0900 0.1000 0.1100 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1800 0.1900 0.2000 0.2100 0.2200 0.2300 0.2400 0.2500 0.2600 0.2700 0.2800 0.2900 0.3000 0.3100 0.3200 0.3300 0.3400 0.3500 0.3600 0.3700 0.3800 0.3900 0.4000 0.4100 0.4200 0.4300 0.4400 0.4500 0.4600 0.4700 0.4800 0.4900 0.5000 
Maximum field value 0.0788 
Minimum field value -0.0852 
Shading is  off 
Reshaping for T30 Gaussian grid
Contouring from a minimum -0.5000 
Contouring to a maximum 0.5000 
Contouring interval is  0.0100 
Contour values are: 
-0.5000 -0.4900 -0.4800 -0.4700 -0.4600 -0.4500 -0.4400 -0.4300 -0.4200 -0.4100 -0.4000 -0.3900 -0.3800 -0.3700 -0.3600 -0.3500 -0.3400 -0.3300 -0.3200 -0.3100 -0.3000 -0.2900 -0.2800 -0.2700 -0.2600 -0.2500 -0.2400 -0.2300 -0.2200 -0.2100 -0.2000 -0.1900 -0.1800 -0.1700 -0.1600 -0.1500 -0.1400 -0.1300 -0.1200 -0.1100 -0.1000 -0.0900 -0.0800 -0.0700 -0.0600 -0.0500 -0.0400 -0.0300 -0.0200 -0.0100 0.0000 0.0100 0.0200 0.0300 0.0400 0.0500 0.0600 0.0700 0.0800 0.0900 0.1000 0.1100 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1800 0.1900 0.2000 0.2100 0.2200 0.2300 0.2400 0.2500 0.2600 0.2700 0.2800 0.2900 0.3000 0.3100 0.3200 0.3300 0.3400 0.3500 0.3600 0.3700 0.3800 0.3900 0.4000 0.4100 0.4200 0.4300 0.4400 0.4500 0.4600 0.4700 0.4800 0.4900 0.5000 
Maximum field value 0.0918 
Minimum field value -0.0990