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