Documentation of sst_eof2


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This script calls

Listing of script sst_eof2


clear 
cd /home/disk/hayes2/dvimont/csm/300yr/srf
load yrs1-51.mat
sst1 = sst(1:600,:,:);
oro1 = oro(1:600,:,:);
load yrs51-100.mat
sst2 = sst;
oro2 = oro;
load yrs101-150.mat
sst3 = sst;
oro3 = oro;
load yrs151-200.mat
sst4 = sst;
oro4 = oro;
load yrs201-250.mat
sst5 = sst;
oro5 = oro;
load yrs251-300.mat
sst6 = sst;
oro6 = oro;
sst = [sst1; sst2; sst3; sst4; sst5; sst6];
clear sst1 sst2 sst3 sst4 sst5 sst6;
oro = [oro1; oro2; oro3; oro4; oro5; oro6];
clear oro1 oro2 oro3 oro4 oro5 oro6;
[ntim, nlat, nlon] = size(sst);
clear sst1 oro1;
for i = 1:((ntim-1)/12);
  ind = 12*(i-1)+[12:14];
  sst1(i,:,:) = mean(sst(ind,:,:));
  oro1(i,:,:) = mean(oro(ind,:,:));
end
moro = squeeze(mean(oro));
sst2 = sst1;
kp = find(moro == 0);
sst2(:,(moro ~= 0)) = NaN;
clear sst3 oro3
[ntim, nlat, nlon] = size(sst2);
for i = 1:(nlon/2);
  lonind = 2*(i-1)+[1:2];
  for j = 1:(nlat/2);
    latind = 2*(j-1)+[1:2];
    sst3(:,j,i) = mean(mean(shiftdim(sst2(:,latind,lonind), 1)));
    oro3(:,j,i) = mean(mean(shiftdim(oro1(:,latind,lonind), 1)));
  end
end
[ntim, nlat, nlon] = size(sst3);
sst3(sst3 <= 274) = NaN;
clim = mean(sst3);
[sst3, tem] = remove_mean(sst3);
kp = find(~isnan(clim));
[lat, lon] = getll('0000_srf.nc');
lat = mean([lat(1:2:length(lat))'; lat(2:2:length(lat))'])';
lat = mean([lat(1:2:length(lat))'; lat(2:2:length(lat))'])';
lon = mean([lon(1:2:length(lon))'; lon(2:2:length(lon))'])';
lon = mean([lon(1:2:length(lon))'; lon(2:2:length(lon))'])';
default_global;
sst3 = cosweight(sst3, lat);
sst3 = sst3(:,kp);
if 0;
  [b, a] = butter(6, 2/6);
  sst3 = filtfilt(b, a, sst3);
end 
sst3 = detrend(sst3);
[lam, lds, pcs, per] = eof_dan(sst3);
figure(1); figure_orient;
num = 1;
tem = NaN * ones(1, nlat*nlon);
tem(kp) = lds(:, num);
tem = reshape(tem, nlat, nlon);
sd(1);
  gcont(tem, [-1:.1:1]);
  dc
sd(2);
  plot(1:ntim, pcs(:,num));
[lat, lon] = getll('0000_srf.nc');
lat = mean([lat(1:2:length(lat))'; lat(2:2:length(lat))'])';
lon = mean([lon(1:2:length(lon))'; lon(2:2:length(lon))'])';
default_global;
[ntim, nlat, nlon] = size(sst1);
sst1 = reshape(sst1, ntim, nlat*nlon);
[sst1, clim] = remove_mean(sst1);
lag = 0;
ind1 = (1:(ntim-lag)); ind2 = ((1+lag):ntim);
lds2 = ((pcs(ind2,:))'*(sst1(ind1,:)) ./ (ntim-lag))';
num = 1;
tem = lds2(:, num);
tem = reshape(tem, nlat, nlon);
sd(1);
  gcont(tem, [-60:5:-5 5:5:60]);
  dc
sd(2);
  plot(1:ntim, pcs(:,num));