/[MITgcm]/MITgcm/verification/offline_exf_seaice/input/gendata.m
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Annotation of /MITgcm/verification/offline_exf_seaice/input/gendata.m

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Revision 1.3 - (hide annotations) (download)
Wed Jan 9 22:10:20 2013 UTC (11 years, 4 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint64o, checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64n, checkpoint64e, checkpoint64d, checkpoint64c, checkpoint64g, checkpoint64f, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l
Changes since 1.2: +54 -28 lines
- change to only one time-record in files (previously, some had 2);
- rename (edge100.bin,edge+20.bin ->  ice0_area.bin ice0_heff.bin) and
  narrow band of low ice-concentration near N & S edge to just 2 rows (instead of 3)
- re-adjust relaxation SST.

1 jmc 1.1
2     kwr=1;
3 jmc 1.3 nx=80; ny=42; nr=3; nt=1;
4 jmc 1.1
5     xc=[1:nx]; xc=xc-mean(xc);
6     yc=[1:ny]-.5;
7    
8     %------------------------------------------------------
9    
10     windx=10.;
11     H0=-100.;
12    
13     namf='channel.bin';
14     depth=H0*ones(nx,ny); depth(:,1)=0.;
15 gforget 1.2 if kwr > 0,
16     fprintf('write to file: %s\n',namf);
17     fid=fopen(namf,'w','b'); fwrite(fid,depth,'real*8'); fclose(fid);
18     end
19 jmc 1.1
20     namf='bathy_3c.bin';
21     msk=abs(xc)'*ones(1,ny)+ones(nx,1)*yc;
22     depth=H0*ones(nx,ny); depth(:,1)=0.;
23     depth(find(msk < 24))=0.;
24     y2d=ones(nx,1)*yc;
25     depth(find(y2d > ny/2))=H0;
26     if kwr > 0,
27     fprintf('write to file: %s\n',namf);
28     fid=fopen(namf,'w','b'); fwrite(fid,depth,'real*8'); fclose(fid);
29     end
30    
31     namf='windx.bin';
32     wnd=windx*ones(nx,ny,nt);
33     if kwr > 0,
34     fprintf('write to file: %s\n',namf);
35     fid=fopen(namf,'w','b'); fwrite(fid,wnd,'real*8'); fclose(fid);
36     end
37    
38     %- file name convention: "const_{xx}.bin" <-> uniform value = xx (in percent)
39     namf='const_00.bin';
40     fld=0*ones(nx,ny,nt);
41     if kwr > 0,
42     fprintf('write to file: %s\n',namf);
43     fid=fopen(namf,'w','b'); fwrite(fid,fld,'real*8'); fclose(fid);
44     end
45    
46     namf='const100.bin'; w0=1.;
47     var=w0*ones(nx,ny);
48     if kwr > 0,
49     fprintf('write to file: %s\n',namf);
50     fid=fopen(namf,'w','b'); fwrite(fid,var,'real*8'); fclose(fid);
51     end
52    
53     namf='const+20.bin'; w0=0.2;
54     var=w0*ones(nx,ny);
55     if kwr > 0,
56     fprintf('write to file: %s\n',namf);
57     fid=fopen(namf,'w','b'); fwrite(fid,var,'real*8'); fclose(fid);
58     end
59    
60     %namf='const+40.bin';
61     %u0=0.4;
62     %var=u0*ones(nx,ny);
63     %if kwr > 0,
64     % fprintf('write to file: %s\n',namf);
65     % fid=fopen(namf,'w','b'); fwrite(fid,var,'real*8'); fclose(fid);
66     %end
67    
68     %namf='const-10.bin';
69     %v0=-0.1;
70     %var=v0*ones(nx,ny);
71     %if kwr > 0,
72     % fprintf('write to file: %s\n',namf);
73     % fid=fopen(namf,'w','b'); fwrite(fid,var,'real*8'); fclose(fid);
74     %end
75     %------------------------------------------------------
76    
77 jmc 1.3 namf='ice0_area.bin'; iceC0=1.;
78     iceConc=iceC0*ones(nx,ny); iceConc(:,1)=0;
79     iceConc(:,2)=0.00*iceC0;
80     iceConc(:,3)=0.10*iceC0;
81     iceConc(:,end) =0.00*iceC0;
82     iceConc(:,end-1)=0.01*iceC0;
83     if kwr > 0,
84 gforget 1.2 fprintf('write to file: %s\n',namf);
85 jmc 1.3 fid=fopen(namf,'w','b'); fwrite(fid,iceConc,'real*8'); fclose(fid);
86 gforget 1.2 end
87    
88 jmc 1.3 namf='ice0_heff.bin'; iceH0=0.2;
89     iceVol=iceConc*iceH0;
90     if kwr > 0,
91 gforget 1.2 fprintf('write to file: %s\n',namf);
92 jmc 1.3 fid=fopen(namf,'w','b'); fwrite(fid,iceVol,'real*8'); fclose(fid);
93 gforget 1.2 end
94    
95     %------------------------------------------------------
96    
97 jmc 1.1 dsw0=100;
98     namf=['dsw_',int2str(dsw0),'.bin'];
99     fld=dsw0*ones(nx,ny,nt);
100     if kwr > 0,
101     fprintf('write to file: %s\n',namf);
102     fid=fopen(namf,'w','b'); fwrite(fid,fld,'real*8'); fclose(fid);
103     end
104    
105 jmc 1.3 dlw0=250;
106 jmc 1.1 namf=['dlw_',int2str(dlw0),'.bin'];
107     fld=dlw0*ones(nx,ny,nt);
108     if kwr > 0,
109     fprintf('write to file: %s\n',namf);
110     fid=fopen(namf,'w','b'); fwrite(fid,fld,'real*8'); fclose(fid);
111     end
112    
113     cel2K=273.15; dtx=4; %- dtx = amplitude of air temp variations in X-dir
114     ta_x=cel2K + dtx*sin(pi*(1+2*xc'/nx));
115     ta=repmat(ta_x,[1 ny nt]);
116     namf=['tair_',int2str(dtx),'x.bin'];
117     if kwr > 0,
118     fprintf('write to file: %s\n',namf);
119     fid=fopen(namf,'w','b'); fwrite(fid,ta,'real*8'); fclose(fid);
120     end;
121    
122     cvapor_fac = 640380.000 ;
123     cvapor_exp = 5107.400 ;
124     atmrho = 1.200 ;
125     rh=70; %- specific humid <--> 70.% relative humid
126     tmpbulk = cvapor_fac*exp(-cvapor_exp./ta_x);
127     qa_x = (rh/100.)*tmpbulk/atmrho ;
128     qa=repmat(qa_x,[1 ny nt]);
129     namf=['qa',int2str(rh),'_',int2str(dtx),'x.bin'];
130     if kwr > 0,
131     fprintf('write to file: %s\n',namf);
132     fid=fopen(namf,'w','b'); fwrite(fid,qa,'real*8'); fclose(fid);
133     end;
134    
135     %- salinity
136     sCst=30;
137     so=sCst*ones(nx,ny,nt);
138     namf='socn.bin';
139     %if kwr > 0,
140     % fprintf('write to file: %s\n',namf);
141     % fid=fopen(namf,'w','b'); fwrite(fid,so,'real*8'); fclose(fid);
142     %end;
143    
144     muTf = 5.4e-2;
145 jmc 1.3 tfreeze=-muTf*sCst;
146 jmc 1.1 fprintf('T-freeze = %10.6f\n',tfreeze);
147 jmc 1.3 %- parabolic profile in Y, max @ j=4, min @ j=ny, amplitude=1.K
148     to_y=(yc-3.5)/(ny-4);
149 jmc 1.1 to_y=tfreeze+0.5-to_y.*to_y;
150 jmc 1.3 mnV=min(to_y); MxV=max(to_y); Avr=mean(to_y(2:end));
151     fprintf(' SST* av,mn,Mx: %9.6f , %9.6f , %9.6f , %9.6f\n',Avr,mnV,MxV,MxV-mnV);
152 jmc 1.1 to=repmat(to_y,[nx 1 nt]);
153     namf='tocn.bin';
154     if kwr > 0,
155     fprintf('write to file: %s\n',namf);
156     fid=fopen(namf,'w','b'); fwrite(fid,to,'real*8'); fclose(fid);
157     end;
158    
159     %-- make some plots to check: ----------------
160    
161     hScal=[-1.1 0.1]*abs(H0);
162     figure(1); clf;
163     subplot(211);
164     var=depth;
165     imagesc(xc,yc,var'); set(gca,'YDir','normal');
166     %caxis(hScal);
167     %change_colmap(-1);
168     colorbar;
169     title('Depth [m]');
170    
171     subplot(413);
172     var=depth;
173     j1=2;
174     j2=ny/2;
175     j3=j2+1;
176     plot(xc,var(:,j1),'k-')
177     hold on; j=j+1;
178     plot(xc,var(:,j2),'ro-')
179     plot(xc,var(:,j3),'b-')
180     hold off;
181     axis([-nx/2 nx/2 hScal]);
182     grid
183     legend(int2str(j1),int2str(j2),int2str(j3));
184     title('Depth @ j= cst');
185    
186     subplot(414);
187     i=nx/2;
188     plot(yc,var(i,:),'k-')
189     axis([0 ny H0*1.1 -H0*.1]);
190     grid
191     title(['Depth @ i=',int2str(i)]);
192    
193     %--
194     dewPt=(qa_x*atmrho)/cvapor_fac;
195     dewPt=-cvapor_exp./log(dewPt);
196    
197     figure(2);clf;
198     subplot(211)
199     plot(xc,ta_x-cel2K,'r-'); hold on;
200 jmc 1.3 plot(xc,dewPt-cel2K,'b-');
201     plot(xc,tfreeze*ones(nx,1),'k-');
202 jmc 1.1 hold off;
203     AA=axis; axis([-nx/2 nx/2 AA(3:4)]);
204     legend('ta','dew');
205     grid
206     title(['del-Temp-X= ',int2str(dtx),' ; RH= ',int2str(rh),' ; Air Temp (^oC)']);
207     subplot(212)
208     plot(yc,to_y,'b-'); hold on;
209 jmc 1.3 plot(yc,tfreeze*ones(ny,1),'k-');
210 jmc 1.1 hold off;
211     AA=axis; axis([0 ny AA(3:4)]);
212     grid
213     title('Ocean Temp ^oC');
214 jmc 1.3
215     %--
216    
217     figure(3);clf;
218     subplot(311)
219     var=iceConc; ccB=[-1 12]/10;
220     imagesc(xc,yc,var'); set(gca,'YDir','normal');
221     caxis(ccB);
222     %change_colmap(-1);
223     colorbar;
224     title('Ice Concentration in Channel');
225    
226     subplot(312)
227     var=iceVol; ccB=[-1 12]/50;
228     imagesc(xc,yc,var'); set(gca,'YDir','normal');
229     caxis(ccB);
230     %change_colmap(-1);
231     colorbar;
232     title('Effective ice thickness in Channel');
233    
234     subplot(313)
235     var=iceConc(1,:);
236     %plot(yc,var,'b-x'); hold on;
237     semilogy(yc,var,'b-x'); hold on;
238     var=iceVol(1,:);
239     %plot(yc,var,'r-x'); hold off;
240     semilogy(yc,var,'r-x'); hold on;
241     AA=axis; axis([0 ny [0 2]*iceC0]);
242     grid
243     legend('iceC','hEff','Location','South');
244     title('Initial ice in Channel : y-section');
245     %--

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