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) ;

% compute the E-W asymmetry of the thermocline and its depth

iterations

itstart = input(' Please enter start iteration : ','s') 
itend = input(' Please enter end iteration : ','s') 


sizeit=size(iterations);
for i=1:sizeit(1)
iter(i)=eval(iterations(i,1:10));
end
nitstart=find(iter==eval(itstart))
nitend=find(iter==eval(itend))

path   = this_path 
cmdstr=['cd ' path ];
eval(cmdstr);
path=pwd

sumtheta=zeros(Nx,Ny,Nz);
counter=0;

for i=nitstart:nitend
tfilename=(['T.' iterations((i),1:10) ]) ;
t=rdmds(tfilename,'b');
sumtheta=sumtheta+t;
counter=counter+1;
end

meantheta=sumtheta/counter;




h=zeros(Nx,Ny);
hh=zeros(Nx,1);

t0=input('Enter temperature : ')
% t0=20.5;
meantheta(:,:,Nz)=0.;

for i=1:Nx,
for j=1:Ny,
kk=find(meantheta(i,j,:)<t0);
if kk(1)>1
h(i,j)=(kk(1)-1)*dz+dz*(meantheta(i,j,kk(1)-1)-t0)/(meantheta(i,j,kk(1)-1)-meantheta(i,j,kk(1)));
else
h(i,j)=0;
end
end
end

% hmax=max(max(h))

% [I,J]=find(h==hmax)
% NNN=J


%
NNN=Ny/2
%
hh=h(:,NNN);
hmax=max(hh);
I=find(hh==hmax);

ii=find(h(:,NNN)>0);
ii1=size(ii);
istart=ii(1)
iend=ii(ii1(1))
x0=(I-istart)/(iend-istart)


plot(hh);