/[MITgcm]/MITgcm_contrib/timour_matlab/mscripts/radialevolution.m
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Contents of /MITgcm_contrib/timour_matlab/mscripts/radialevolution.m

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Revision 1.1 - (show annotations) (download)
Wed Sep 3 21:22:22 2003 UTC (21 years, 10 months ago) by edhill
Branch: MAIN
CVS Tags: HEAD
Error occurred while calculating annotation data.
initial checkin of Timour's MatLAB scripts

1 clear
2 clear path
3
4 global Nx Ny Nz
5 global lat long dz dm mdep
6 global delt_su su_its t_su delt
7 global descriptor this_path
8 global f deltaf Q beta r_expt r_heat H
9 global time rots it
10 global g Cp rho_bar alpha
11 global u v t w
12 global iterations
13
14
15 param_file_name = ...
16 input(' Please enter the name of the m-file with the parameters for this run : ','s') ;
17 feval(param_file_name) ;
18
19 iterations
20
21 itstart = input(' Please enter start iteration : ','s')
22 itend = input(' Please enter end iteration : ','s')
23 radmean = input(' Please enter radius of mean in gridpoints (ie 42) : ')
24
25 sizeit=size(iterations);
26 for i=1:sizeit(1)
27 iter(i)=eval(iterations(i,1:10));
28 end
29 nitstart=find(iter==eval(itstart))
30 nitend=find(iter==eval(itend))
31
32
33
34 path = this_path
35 cmdstr=['cd ' path ];
36 eval(cmdstr);
37 path=pwd
38
39 sumtheta=zeros(Nx,Ny,Nz);
40 counter=0;
41
42 % create circular sampling rings
43
44
45 Nn=Nx/2;
46
47 rad=[1:1:(Nn-1)];
48 ring=ones(Nx,Ny,Nz);
49 weight=zeros(1,Nn-1);
50 radialmean=zeros(1,Nn-1);
51 XCenter = (Nx+1)/2 ;
52 YCenter = (Ny+1)/2 ;
53
54
55 for k=1:Nn-1
56 for i=1:Nx
57 for j=1:Ny
58 radius(i,j) = sqrt((i-XCenter)^2+(j-YCenter)^2);
59 end
60 end
61 radius(find( round(radius) > (k+1) ))=radius(find (round(radius) > (k+1) ))*0;
62 radius(find( round(radius) < (k) ))=radius(find (round(radius) < (k) ))*0;
63 radius(find(radius>0))=1.0;
64 ring(:,:,k)=radius;
65 weight(:,k)=length(find(ring(:,:,k) > 0));
66 end
67
68 for i=nitstart:nitend
69 tfilename=(['T.' iterations((i),1:10) ]) ;
70 t=rdmeta(tfilename,'b');
71 for j=1:30
72 tring=t(:,:,j).*ring(:,:,radmean);
73 meant(j)=sum(sum(tring))/weight(radmean);
74 end
75 sumtheta=sumtheta+meant;
76 counter=counter+1;
77 end
78
79
80 plot(meant,mdep,'o-')

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