/[MITgcm]/MITgcm_contrib/timour_matlab/mscripts/radialthetamean.m
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Contents of /MITgcm_contrib/timour_matlab/mscripts/radialthetamean.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
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 it = input(' Please enter iteration : ','s')
22 radmean = input(' Please enter radius of mean in gridpoints (ie 42) : ')
23 path = this_path
24 cmdstr=['cd ' path ];
25 eval(cmdstr);
26 path=pwd
27
28 tfilename=(['T.' it ]);
29 t=rdmeta(tfilename,'b');
30
31 % create circular sampling rings
32
33
34 Nn=Nx/2;
35
36 rad=[1:1:(Nn-1)];
37 ring=ones(Nx,Ny,Nz);
38 weight=zeros(1,Nn-1);
39 radialmean=zeros(1,Nn-1);
40 XCenter = (Nx+1)/2 ;
41 YCenter = (Ny+1)/2 ;
42
43
44 for k=1:Nn-1
45 for i=1:Nx
46 for j=1:Ny
47 radius(i,j) = sqrt((i-XCenter)^2+(j-YCenter)^2);
48 end
49 end
50 radius(find( round(radius) > (k+1) ))=radius(find (round(radius) > (k+1) ))*0;
51 radius(find( round(radius) < (k) ))=radius(find (round(radius) < (k) ))*0;
52 radius(find(radius>0))=1.0;
53 ring(:,:,k)=radius;
54 weight(:,k)=length(find(ring(:,:,k) > 0));
55 end
56
57
58
59 for i=1:30
60 tring=t(:,:,i).*ring(:,:,radmean);
61 meant(i)=sum(sum(tring))/weight(radmean);
62 end
63
64
65 plot(meant,mdep,'o-')

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