lab_sea/matlab/lookat_ice.m

% need to be in verification/lab_sea/matlab directory
% and to specify location of exp1 output
cd ../../../verification/lab_sea/matlab
exp_path='../input/';

% load monthly-mean SMMR-SSM/I data
load SSMI

% B-grid latitude for uice and vice
Blat=lat-1; Blon=lon-1;

% load model output
area =readbin('../results/AREAtave.0000000010.data' ,[20 16 1],1);
heff =readbin('../results/HEFFtave.0000000010.data' ,[20 16 1],1);
uice =readbin('../results/UICEtave.0000000010.data' ,[20 16 1],1);
vice =readbin('../results/VICEtave.0000000010.data' ,[20 16 1],1);
area1=readbin([exp_path 'AREAtave.0000000010.data'],[20 16 1],1);
heff1=readbin([exp_path 'HEFFtave.0000000010.data'],[20 16 1],1);
uice1=readbin([exp_path 'UICEtave.0000000010.data'],[20 16 1],1);
vice1=readbin([exp_path 'VICEtave.0000000010.data'],[20 16 1],1);

% compute ice speed and direction
udir=0*uice; vdir=0*vice;
udir1=0*uice; vdir1=0*vice;
icespeed=100*sqrt(uice.^2+vice.^2);
in=find(icespeed);
udir(in)=uice(in)./icespeed(in);
vdir(in)=vice(in)./icespeed(in);
icespeed1=100*sqrt(uice1.^2+vice1.^2);
in=find(icespeed1);
udir1(in)=uice1(in)./icespeed1(in);
vdir1(in)=vice1(in)./icespeed1(in);

% plot comparison figures

clf, subplot(321)
mypcolor(lon,lat,area1'); caxis([0 1]), colorbar
title('Sea-ice concentration')
set(gca,'xticklabel',[])

subplot(322)
mypcolor(lon,lat,area1'-area'); colorbar
title('Difference with checkpoint51f')
set(gca,'xticklabel',[])

subplot(323)
mypcolor(lon,lat,heff1'); caxis([0 .3]), colorbar
title('Effective sea-ice thickness (m)')
set(gca,'xticklabel',[])

subplot(324)
mypcolor(lon,lat,heff1'-heff'); colorbar
title('Difference with checkpoint51f')
set(gca,'xticklabel',[])

subplot(325)
mypcolor(Blon,Blat,icespeed1'); caxis([0 10]), colorbar
hold on, myquiver(Blon,Blat,udir1',vdir1','k');
title('Sea-ice velocity (cm/s)')

subplot(326)
mypcolor(Blon,Blat,icespeed1'-icespeed'); colorbar
if mmax(abs(udir1-udir)) | mmax(abs(vdir1-vdir))
  hold on, myquiver(Blon,Blat,udir1'-udir',vdir1'-vdir','k');
end
title('Difference with checkpoint51f')
1	dimitri	1.1	% need to be in verification/lab_sea/matlab directory
2			% and to specify location of exp1 output
3			cd ../../../verification/lab_sea/matlab
4			exp_path='../input/';
5
6			% load monthly-mean SMMR-SSM/I data
7			load SSMI
8
9			% B-grid latitude for uice and vice
10			Blat=lat-1; Blon=lon-1;
11
12			% load model output
13			area =readbin('../results/AREAtave.0000000010.data' ,[20 16 1],1);
14			heff =readbin('../results/HEFFtave.0000000010.data' ,[20 16 1],1);
15			uice =readbin('../results/UICEtave.0000000010.data' ,[20 16 1],1);
16			vice =readbin('../results/VICEtave.0000000010.data' ,[20 16 1],1);
17			area1=readbin([exp_path 'AREAtave.0000000010.data'],[20 16 1],1);
18			heff1=readbin([exp_path 'HEFFtave.0000000010.data'],[20 16 1],1);
19			uice1=readbin([exp_path 'UICEtave.0000000010.data'],[20 16 1],1);
20			vice1=readbin([exp_path 'VICEtave.0000000010.data'],[20 16 1],1);
21
22			% compute ice speed and direction
23			udir=0uice; vdir=0vice;
24			udir1=0uice; vdir1=0vice;
25			icespeed=100*sqrt(uice.^2+vice.^2);
26			in=find(icespeed);
27			udir(in)=uice(in)./icespeed(in);
28			vdir(in)=vice(in)./icespeed(in);
29			icespeed1=100*sqrt(uice1.^2+vice1.^2);
30			in=find(icespeed1);
31			udir1(in)=uice1(in)./icespeed1(in);
32			vdir1(in)=vice1(in)./icespeed1(in);
33
34			% plot comparison figures
35
36			clf, subplot(321)
37			mypcolor(lon,lat,area1'); caxis([0 1]), colorbar
38			title('Sea-ice concentration')
39			set(gca,'xticklabel',[])
40
41			subplot(322)
42			mypcolor(lon,lat,area1'-area'); colorbar
43			title('Difference with checkpoint51f')
44			set(gca,'xticklabel',[])
45
46			subplot(323)
47			mypcolor(lon,lat,heff1'); caxis([0 .3]), colorbar
48			title('Effective sea-ice thickness (m)')
49			set(gca,'xticklabel',[])
50
51			subplot(324)
52			mypcolor(lon,lat,heff1'-heff'); colorbar
53			title('Difference with checkpoint51f')
54			set(gca,'xticklabel',[])
55
56			subplot(325)
57			mypcolor(Blon,Blat,icespeed1'); caxis([0 10]), colorbar
58			hold on, myquiver(Blon,Blat,udir1',vdir1','k');
59			title('Sea-ice velocity (cm/s)')
60
61			subplot(326)
62			mypcolor(Blon,Blat,icespeed1'-icespeed'); colorbar
63			if mmax(abs(udir1-udir)) \| mmax(abs(vdir1-vdir))
64			hold on, myquiver(Blon,Blat,udir1'-udir',vdir1'-vdir','k');
65			end
66			title('Difference with checkpoint51f')