clear 
clear path 

global Nx Ny Nz
global lat long dz dm mdep
global delt_su su_its t_su delt
global descriptor this_path
global f deltaf Q beta r_expt r_heat H
global time rots it
global g Cp rho_bar alpha
global u v t w
global iterations


param_file_name =   ...
   input(' Please enter the name of the m-file with the parameters for this run : ','s') ;
feval(param_file_name) ;
path   = this_path 
cmdstr=['cd ' path ];
eval(cmdstr);
path=pwd

% create circular sampling rings


sizeit=size(iterations);
theta20=zeros(sizeit(1),1);
figure;hold on

for i=2:sizeit(1)-1
tfilename=(['T.' iterations((i),1:10) ]);
t=rdmds(tfilename,'b');

tt(i,:)=t(Nx/2,Ny/2,:)-20;

time(i)=eval(iterations(i,1:10));


end

plot(time(2:sizeit(1)-1),tt(2:sizeit-1,1:10));drawnow


title(descriptor)
xlabel('timestep')
ylabel('T anomaly at the center of the tank for 10 near-surface levels')
grid

computertime=time;

%save centralt centralt
%save iterations iterations
%save tcol tcol
%save tincol tincol
%save mdep mdep 
%save working tcol tincol mdep computertime