Documentation of dtemp_dt

Global Index (short | long) | Local contents | Local Index (short | long)

Help text

  Now get tprime

Cross-Reference Information

Listing of script dtemp_dt

clear

tim = 101:550;
ctlim = [110 300 -60 60];
lev = 1;

cd /home/disk/hayes2/dvimont/csiro/annual_data

filin = 'temp_half_L1_yr101-550.nc';
nc = netcdf(filin, 'nowrite');
  depth = nc{'depth'}(:);
  latt = nc{'latitude'}(:);
  lont = nc{'longitude'}(:);
  [xk, yk] = keep_var(ctlim, lont, latt);
  temp = nc{'temp'}(:, 1, yk, xk);
  mv = nc{'temp'}.missing_value(:);
nc = close(nc);
temp(temp == mv) = NaN;
latt = latt(yk); lont = lont(xk);
temp = squeeze(temp);

[ntim, nlat, nlon] = size(temp);
temp = reshape(temp, ntim, nlat*nlon);
dtdt = diff(temp) ./ (365 * 24 * 3600);
ntim = ntim-1;

%  Load CPCs

cd /home/disk/hayes2/dvimont/csiro/matlab_data/20Deg_Isotherm
%load 20deg_CEOF_LP10_yr101-550.mat; tit = 'Lowpass Filtered Data ( > 10 Years )';
load 20deg_CEOF_HP8_yr101-550.mat; tit = 'Highpass Filtered Data ( < 8 Years )';
%load 20deg_CEOF_RAW_yr101-550.mat; tit = 'Unfiltered Data';

%  Get regressions

lag = 0; lg = lag*pi/180; lg2 = 1;
num = 1; lind = 1;
nfrm = 6;

%  Store all regressions under one variable

j = sqrt(-1);
timeseries = sqrt(2)*pcs(:,num)./std(pcs(:,num));
clear temtim treg
for i = 1:nfrm
  wgt = conj(exp(j * ((i-1) * pi/(lg2*nfrm) + lg) ));
  temtim(:,i) = squeeze(real(wgt .* timeseries));
  treg(i, :) = temtim(:,i)' * dtdt ./ ntim;
end
treg = reshape(treg, 6, nlat, nlon);

%  Plot the data

get_global; FRAME = ctlim; XAX = lont; YAX = latt;

figure(1); figure_orient;
cint = 2; clev = [-50:cint:-cint cint:cint:50];

for i = 1:nfrm
  tem = 1e9 * squeeze(treg(i,:,:));
  subplot(3,2,i);
    gcont(tem, clev);
    dc
  if i > 4;
    xlabel(['Contour Interval:  ' num2str(cint) ' x 10^-^9 K s^-^1']);
  end
end
subplot(3,2,3);
  ylabel([tit ':  Centered Time Derivative of T;  '...
          'Depth = ' num2str(depth(lev)/100) 'm']);