Example of Fig 4.10
Sensitivity to Space Sampling
function example410 % % Effect of changing the space domain % flat = [0 90]; flon = [0 360]; lnorm = 'anom'; [zt,ind,fcos]=readz500(flat,flon,'season','jfm','scaling','yes'); [z,sdz]=anomaly(zt,lnorm); [eof1,lam1,v,proj]=eoffast(z,ind,15,1); flat = [0 90]; flon = [90 270]; lnorm = 'anom'; [zt,ind,fcos]=readz500(flat,flon,'season','jfm','scaling','yes'); [z,sdz]=anomaly(zt,lnorm); [eof2,lam2,v,proj]=eoffast(z,ind,15,1); flat = [0 90]; flon = [180 240]; lnorm = 'anom'; [zt,ind,fcos]=readz500(flat,flon,'season','jfm','scaling','yes'); [z,sdz]=anomaly(zt,lnorm); [eof3,lam3,v,proj]=eoffast(z,ind,15,1); % Make plot titstr=cell(size(1:3)); titstr{1} = [' Global Domain - EOF Mode 1 ' num2str(lam1(1)*100,'%-2.0f') '%']; titstr{2} = [' Smaller Domain 90E-90W - EOF Mode 1 ' num2str(lam2(1)*100,'%-2.0f') '%']; titstr{3} = [' Smaller Domain 180E-120W - EOF Mode 1 ' num2str(lam3(1)*100,'%-2.0f') '%']; bigtit{1}= ' ' ; bigtit{2}= ''; pict3(bigtit,eof1(:,1),eof2(:,1),eof3(:,1), ... [0 90],[0 360],[-0.3:0.02:0.3],titstr,'shading','off'); h=findobj('type','axes'); % Put some shading axes(h(1)) patchesm([0 0 90 90],[0 180 180 0],[0.4 0.4 0.4]); patchesm([0 0 90 90],[240 360 360 240],[0.4 0.4 0.4]); axes(h(2)) patchesm([0 0 90 90],[0 90 90 0],[0.4 0.4 0.4]); patchesm([0 0 90 90],[270 360 360 270],[0.4 0.4 0.4]); print('-dpdf','-painters','-adobecset',['example410.pdf']); lam1,lam2,lam3
Normalization anom Expanded Field Normalization anom Expanded Field Normalization anom Expanded Field Shading is off Reshaping for T30 Gaussian grid Contouring from a minimum -0.3000 Contouring to a maximum 0.3000 Contouring interval is 0.0200 Contour values are: -0.3000 -0.2800 -0.2600 -0.2400 -0.2200 -0.2000 -0.1800 -0.1600 -0.1400 -0.1200 -0.1000 -0.0800 -0.0600 -0.0400 -0.0200 0.0000 0.0200 0.0400 0.0600 0.0800 0.1000 0.1200 0.1400 0.1600 0.1800 0.2000 0.2200 0.2400 0.2600 0.2800 0.3000 Maximum field value 0.1081 Minimum field value -0.0435 Shading is off Reshaping for T30 Gaussian grid Contouring from a minimum -0.3000 Contouring to a maximum 0.3000 Contouring interval is 0.0200 Contour values are: -0.3000 -0.2800 -0.2600 -0.2400 -0.2200 -0.2000 -0.1800 -0.1600 -0.1400 -0.1200 -0.1000 -0.0800 -0.0600 -0.0400 -0.0200 0.0000 0.0200 0.0400 0.0600 0.0800 0.1000 0.1200 0.1400 0.1600 0.1800 0.2000 0.2200 0.2400 0.2600 0.2800 0.3000 Maximum field value 0.1321 Minimum field value -0.0498 Shading is off Reshaping for T30 Gaussian grid Contouring from a minimum -0.3000 Contouring to a maximum 0.3000 Contouring interval is 0.0200 Contour values are: -0.3000 -0.2800 -0.2600 -0.2400 -0.2200 -0.2000 -0.1800 -0.1600 -0.1400 -0.1200 -0.1000 -0.0800 -0.0600 -0.0400 -0.0200 0.0000 0.0200 0.0400 0.0600 0.0800 0.1000 0.1200 0.1400 0.1600 0.1800 0.2000 0.2200 0.2400 0.2600 0.2800 0.3000 Maximum field value 0.1508 Minimum field value -0.0564 lam1 = 0.3287 0.1476 0.0970 0.0698 0.0622 0.0474 0.0403 0.0343 0.0313 0.0213 0.0203 0.0172 0.0112 0.0104 0.0091 0.0087 0.0070 0.0060 0.0050 0.0039 0.0033 0.0031 0.0024 0.0022 0.0020 0.0018 0.0015 0.0012 0.0011 0.0008 0.0007 0.0006 0.0006 0.0000 lam2 = 0.4713 0.1356 0.0924 0.0681 0.0514 0.0454 0.0208 0.0178 0.0160 0.0133 0.0130 0.0106 0.0081 0.0070 0.0055 0.0046 0.0034 0.0029 0.0022 0.0020 0.0016 0.0012 0.0011 0.0008 0.0008 0.0007 0.0005 0.0005 0.0004 0.0004 0.0003 0.0002 0.0002 0.0000 lam3 = 0.6168 0.1620 0.0753 0.0487 0.0328 0.0276 0.0126 0.0060 0.0054 0.0031 0.0020 0.0016 0.0012 0.0010 0.0010 0.0006 0.0005 0.0003 0.0002 0.0002 0.0002 0.0002 0.0001 0.0001 0.0001 0.0001 0.0001 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
