/[MITgcm]/MITgcm_contrib/bbl/lookat_output.m
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Contents of /MITgcm_contrib/bbl/lookat_output.m

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Revision 1.4 - (show annotations) (download)
Tue Aug 27 21:02:21 2013 UTC (10 years, 8 months ago) by dimitri
Branch: MAIN
CVS Tags: HEAD
Changes since 1.3: +23 -31 lines
The pkg/bbl test has been changed so that only the initial conditions contain
a density anomaly, as opposed to continuously forcing the density anomaly
from the surface.  This update is used to demonstrate the non-dispersive
formulation of the updated pkg/bbl.

1 % cd MITgcm
2 lon=0:.48:11.6; lat=-70:.16:-67.7; dpt=72:144:3600;
3 Depth=readbin('run/Depth.data',[25 15]);
4
5 % find bottom
6 kbot=ones(25,15);
7 s1=35+readbin(['run.bbl/SALTanom.' myint2str(216,10) '.data'],[25 15 25]);
8 for k=2:25
9 kbot(find(s1(:,:,k)>0))=k;
10 end
11
12 % compare baseline, downslope, and bbl
13 colormap(cmap), cx=[29.99 30.1];
14 s1=zeros(25,15,25); s2=s1; s3=s1;
15 for ts=216:216:7200
16 s1(:,:,1:25)=35+readbin(['run/SALTanom.' myint2str(ts,10) '.data'],[25 15 25]);
17 s2(:,:,1:25)=35+readbin(['run.down_slope/SALTanom.' myint2str(ts,10) '.data'],[25 15 25]);
18 s3(:,:,1:25)=35+readbin(['run.bbl/SALTanom.' myint2str(ts,10) '.data'],[25 15 25]);
19 clf, subplot(311)
20 mypcolor(lat,-dpt/1e3,squeeze(s1(10,:,:))'); caxis(cx), thincolorbar
21 title(['baseline salinity section on day ' int2str(ts*1200/60/60/24)])
22 ylabel('depth (km)')
23 subplot(312)
24 mypcolor(lat,-dpt/1e3,squeeze(s2(10,:,:))'); caxis(cx), thincolorbar
25 title(['downslope salinity section on day ' int2str(ts*1200/60/60/24)])
26 ylabel('depth (km)')
27 subplot(313)
28 mypcolor(lat,-dpt/1e3,squeeze(s3(10,:,:))'); caxis(cx), thincolorbar
29 title(['bbl salinity section on day ' int2str(ts*1200/60/60/24)])
30 ylabel('depth (km)'), xlabel('latitude (deg)')
31 pause(.1)
32 end
33
34 % look at some diagnostics from bbl integration
35 colormap(cmap), cx=[29.998 30.03];
36 for ts=216:216:7200
37 clf
38 subplot(321)
39 s1=35+readbin(['run.bbl/SALTanom.' myint2str(ts,10) '.data'],[25 15 25]);
40 mypcolor(lat,-dpt/1e3,squeeze(s1(10,:,:))'); caxis(cx), thincolorbar
41 title(['salinity section on day ' int2str(ts*1200/60/60/24)])
42 subplot(322)
43 s2=kbot; for i=1:25, for j=1:15, s2(i,j)=s1(i,j,kbot(i,j)); end, end
44 mypcolor(s2'); caxis(cx), thincolorbar
45 title('salinity of bottom grid box')
46 subplot(323)
47 eta=readbin(['run.bbl/BBLeta.' myint2str(ts,10) '.data'],[25 15]);
48 mypcolor(eta'); caxis([0 144]), thincolorbar
49 title('bbl thickness')
50 subplot(324)
51 s3=readbin(['run.bbl/BBLsalt.' myint2str(ts,10) '.data'],[25 15]);
52 mypcolor(s3'); caxis(cx), thincolorbar
53 title('salinity of bbl')
54 subplot(325)
55 tendS=readbin(['run.bbl/BBLtendS.' myint2str(ts,10) '.data'],[25 15]);
56 mypcolor(tendS'); caxis([-1 1]*3e-9), thincolorbar
57 title('bottom salinity tendency due to bbl')
58 subplot(326)
59 mypcolor(s3'-s2'); thincolorbar
60 title('bbl salinity minus bottom salinity'), pause
61 end

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