/[MITgcm]/MITgcm/verification/lab_sea/matlab/lookat_exp10.m
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Contents of /MITgcm/verification/lab_sea/matlab/lookat_exp10.m

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Revision 1.2 - (show annotations) (download)
Tue Feb 18 05:33:56 2003 UTC (21 years, 3 months ago) by dimitri
Branch: MAIN
CVS Tags: checkpoint48i_post, checkpoint50b_post, checkpoint48g_post, checkpoint50c_pre, checkpoint50, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, checkpoint50d_pre, checkpoint50d_post, checkpoint50c_post, checkpoint50e_post, checkpoint50b_pre, checkpoint48h_post, checkpoint50e_pre, checkpoint49, checkpoint48f_post
Changes since 1.1: +66 -0 lines 
Merging from release1_p12:
o Modifications for using pkg/exf with pkg/seaice
  - improved description of the various forcing configurations
  - added basic radiation bulk formulae to pkg/exf
  - units/sign fix for evap computation in exf_getffields.F
  - updated verification/global_with_exf/results/output.txt
o Added pkg/sbo for computing IERS Special Bureau for the Oceans
  (SBO) core products, including oceanic mass, center-of-mass,
  angular, and bottom pressure (see pkg/sbo/README.sbo).
o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
  to avoid negative values in shallow regions.
  - updated verification/natl_box/results/output.txt
  - updated verification/lab_sea/results/output.txt
o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
o Added useSingleCpuIO option (see PARAMS.h).
o Updated useSingleCpuIO option in mdsio_writefield.F to
  work with multi-field files, e.g., for single-file pickup.
o pkg/seaice:
  - bug fix in growth.F: QNET for no shortwave case
  - added HeffFile for specifying initial sea-ice thickness
  - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
  kpp_transport_t.F, forward_step.F, and the_main_loop.F
o pkg/seaice:
  - adjoint-friendly modifications
  - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1 % need to be in verification/lab_sea/matlab directory
2 % and to specify location of exp1 output
3 cd ../../../verification/lab_sea/matlab
4 exp8_path='../input/exp8/';
5 exp10_path='../input/exp10/';
6
7 % load monthly-mean SMMR-SSM/I data
8 load SSMI
9
10 % B-grid latitude for uice and vice
11 Blat=lat+1; Blon=lon+1;
12
13 % load model output
14 area1=readbin([exp8_path 'AREAtave.0000000010.data'],[20 16 1],1);
15 heff1=readbin([exp8_path 'HEFFtave.0000000010.data'],[20 16 1],1);
16 uice1=readbin([exp8_path 'UICEtave.0000000010.data'],[20 16 1],1);
17 vice1=readbin([exp8_path 'VICEtave.0000000010.data'],[20 16 1],1);
18 area2=readbin([exp10_path 'AREAtave.0000000010.data'],[20 16 1],1);
19 heff2=readbin([exp10_path 'HEFFtave.0000000010.data'],[20 16 1],1);
20 uice2=readbin([exp10_path 'UICEtave.0000000010.data'],[20 16 1],1);
21 vice2=readbin([exp10_path 'VICEtave.0000000010.data'],[20 16 1],1);
22
23 % compute ice speed and direction
24 udir1=0*uice1; vdir1=0*vice1;
25 udir2=0*uice2; vdir2=0*vice2;
26 icespeed1=100*sqrt(uice1.^2+vice1.^2);
27 in=find(icespeed1);
28 udir1(in)=uice1(in)./icespeed1(in);
29 vdir1(in)=vice1(in)./icespeed1(in);
30 icespeed2=100*sqrt(uice2.^2+vice2.^2);
31 in=find(icespeed2);
32 udir2(in)=uice2(in)./icespeed2(in);
33 vdir2(in)=vice2(in)./icespeed2(in);
34
35 % plot comparison figures
36 clf, subplot(321)
37 mypcolor(lon,lat,area2'); caxis([0 1]), colorbar
38 title('Sea-ice concentration with pkg/exf evaporation')
39 set(gca,'xticklabel',[])
40
41 subplot(322)
42 mypcolor(lon,lat,area2'-area1'); colorbar
43 title('Difference with Experiment 8')
44 set(gca,'xticklabel',[])
45
46 subplot(323)
47 mypcolor(lon,lat,heff2'); caxis([0 .3]), colorbar
48 title('Effective sea-ice thickness (m)')
49 set(gca,'xticklabel',[])
50
51 subplot(324)
52 mypcolor(lon,lat,heff2'-heff1'); colorbar
53 title('Difference with Experiment 8')
54 set(gca,'xticklabel',[])
55
56 subplot(325)
57 mypcolor(Blon,Blat,icespeed2'); caxis([0 10]), colorbar
58 hold on, myquiver(Blon,Blat,udir2',vdir2','k');
59 title('Sea-ice velocity (cm/s)')
60
61 subplot(326)
62 mypcolor(Blon,Blat,icespeed2'-icespeed1'); colorbar
63 if mmax(abs(udir2-udir1)) | mmax(abs(vdir2-vdir1))
64 hold on, myquiver(Blon,Blat,udir2'-udir1',vdir2'-vdir1','k');
65 end
66 title('Difference with Experiment 8')
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