% need to be in verification/lab_sea/matlab directory
% and to specify location of exp1 output
cd ../../../verification/lab_sea/matlab
exp1_path='../input/exp1/';
exp8_path='../input/exp8/';

% 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
area1=readbin([exp1_path 'AREAtave.0000000010.data'],[20 16 1],1);
heff1=readbin([exp1_path 'HEFFtave.0000000010.data'],[20 16 1],1);
uice1=readbin([exp1_path 'UICEtave.0000000010.data'],[20 16 1],1);
vice1=readbin([exp1_path 'VICEtave.0000000010.data'],[20 16 1],1);
area2=readbin([exp8_path 'AREAtave.0000000010.data'],[20 16 1],1);
heff2=readbin([exp8_path 'HEFFtave.0000000010.data'],[20 16 1],1);
uice2=readbin([exp8_path 'UICEtave.0000000010.data'],[20 16 1],1);
vice2=readbin([exp8_path 'VICEtave.0000000010.data'],[20 16 1],1);

% compute ice speed and direction
udir1=0*uice1; vdir1=0*vice1;
udir2=0*uice2; vdir2=0*vice2;
icespeed1=100*sqrt(uice1.^2+vice1.^2);
in=find(icespeed1);
udir1(in)=uice1(in)./icespeed1(in);
vdir1(in)=vice1(in)./icespeed1(in);
icespeed2=100*sqrt(uice2.^2+vice2.^2);
in=find(icespeed2);
udir2(in)=uice2(in)./icespeed2(in);
vdir2(in)=vice2(in)./icespeed2(in);

% plot comparison figures
clf, subplot(321)
mypcolor(lon,lat,area2'); caxis([0 1]), colorbar
title('Sea-ice concentration with pkg/exf')
set(gca,'xticklabel',[])

subplot(322)
mypcolor(lon,lat,area2'-area1'); colorbar
title('Difference with Experiment 1')
set(gca,'xticklabel',[])

subplot(323)
mypcolor(lon,lat,heff2'); caxis([0 .3]), colorbar
title('Effective sea-ice thickness (m)')
set(gca,'xticklabel',[])

subplot(324)
mypcolor(lon,lat,heff2'-heff1'); colorbar
title('Difference with Experiment 1')
set(gca,'xticklabel',[])

subplot(325)
mypcolor(Blon,Blat,icespeed2'); caxis([0 10]), colorbar
hold on, myquiver(Blon,Blat,udir2',vdir2','k');
title('Sea-ice velocity (cm/s)')

subplot(326)
mypcolor(Blon,Blat,icespeed2'-icespeed1'); colorbar
if mmax(abs(udir2-udir1)) | mmax(abs(vdir2-vdir1))
  hold on, myquiver(Blon,Blat,udir2'-udir1',vdir2'-vdir1','k');
end
title('Difference with Experiment 1')