/[MITgcm]/MITgcm_contrib/high_res_cube/eddy_flux/calcUVBave.m
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Revision 1.5 - (hide annotations) (download)
Fri Aug 13 01:45:49 2004 UTC (20 years, 11 months ago) by edhill
Branch: MAIN
CVS Tags: HEAD
Changes since 1.4: +2 -1 lines
 o fix a few small bugs

1 edhill 1.1 function m = calcUVBave(Spat, Tpat, Upat, Vpat, ilist, nlay, ne)
2    
3     % Function m = calcTBave(Spat, Tpat, Upat, Vpat, ilist, nlay, ne)
4     %
5     %
6     % INPUTS
7     % Tpat string containing T-data file pattern
8     % Upat string containing U-data file pattern
9     % Vpat string containing V-data file pattern
10     % ilist list of iteration values
11     % nlay number of z layers
12     % ne number of values alone each edge of each face
13     %
14     % OUTPUTS
15     % m output array of dimension ns*nps
16    
17     if nargin ~= 7
18     disp('Error: wrong number of arguments')
19     exit
20     end
21    
22     deltatT = 1200; % model time step size (s)
23     tavefreq = 259200; % averaging period (s)
24     startDate = datenum(1992,1,1); % model integration starting date
25    
26     oldyear = -1;
27     newyear = oldyear;
28    
29     nps = 6 * ne*ne;
30     tx = 85;
31     ty = 85;
32     nt = ne*ne*6/(tx*ty);
33     cx = ne;
34     cy = ne;
35     nz = 1;
36    
37     delR = [
38     10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.01, ...
39     10.03, 10.11, 10.32, 10.80, 11.76, 13.42, 16.04 , 19.82, 24.85, ...
40     31.10, 38.42, 46.50, 55.00, 63.50, 71.58, 78.90, 85.15, 90.18, ...
41     93.96, 96.58, 98.25, 99.25,100.01,101.33,104.56,111.33,122.83, ...
42     139.09,158.94,180.83,203.55,226.50,249.50,272.50,295.50,318.50, ...
43     341.50,364.50,387.50,410.50,433.50,456.50 ];
44     R = cumsum(delR) - 0.5*delR;
45    
46 edhill 1.4 vnam = [ 'U_'; 'V_'; 'T_'; 'S_'; 'B_'; 'B1'; ...
47     'UT'; 'VT'; 'US'; 'VS'; 'UB'; 'VB' ];
48    
49 edhill 1.1 il = 1;
50     for il = 1:nlay
51    
52 edhill 1.5 a = sprintf('Slice: %g',il);
53 edhill 1.1 % disp(a);
54    
55     % Zero the accumulators
56 edhill 1.5 nm = 0;
57 edhill 1.4 for io = 1:size(vnam,1)
58     comm = sprintf('%s_acc = zeros(ne,ne,6);', vnam(io,:));
59     eval(comm)
60     end
61 edhill 1.1
62     it = 1;
63     for it = 1:length(ilist)
64    
65     iter = ilist(it);
66     str = datestr(startDate + (iter*deltatT-tavefreq/2)/60/60/24);
67     dv = datevec(startDate + (iter*deltatT-tavefreq/2)/60/60/24);
68     newyear = dv(1);
69    
70     sfname = sprintf(Spat, ilist(it));
71     tfname = sprintf(Tpat, ilist(it));
72     ufname = sprintf(Upat, ilist(it));
73     vfname = sprintf(Vpat, ilist(it));
74     disp([ a ' ' str ' ' tfname ]);
75     sfid = fopen(sfname, 'r', 'ieee-be');
76     tfid = fopen(tfname, 'r', 'ieee-be');
77     ufid = fopen(ufname, 'r', 'ieee-be');
78     vfid = fopen(vfname, 'r', 'ieee-be');
79     offset = (il - 1)*nps*4;
80    
81     % Convert the horrible JPL mdsio layout to six sane faces
82     fseek(sfid, offset, 'bof');
83     scube = unmangleJPL1( reshape(fread(sfid, nps, 'real*4'),tx*nt,ty), ...
84     ne, tx );
85    
86     fseek(tfid, offset, 'bof');
87     tcube = unmangleJPL1( reshape(fread(tfid, nps, 'real*4'),tx*nt,ty), ...
88     ne, tx );
89    
90     fseek(ufid, offset, 'bof');
91     ucube = unmangleJPL1( reshape(fread(ufid, nps, 'real*4'),tx*nt,ty), ...
92     ne, tx );
93    
94     fseek(vfid, offset, 'bof');
95     vcube = unmangleJPL1( reshape(fread(vfid, nps, 'real*4'),tx*nt,ty), ...
96     ne, tx );
97    
98     fclose(sfid);
99     fclose(tfid);
100     fclose(ufid);
101     fclose(vfid);
102    
103     % Compute the density
104     bcube = zeros(size(scube));
105     bcubem1 = zeros(size(scube));
106     for icf = 1:6
107     % pressure_for_eos.F :
108     % locPres(i,j) = -rhoConst*rC(k)*gravity*maskC(i,j,k,bi,bj)
109     % rhoConst = 9.997999999999999E+02 /* Ref density ( kg/m^3 ) */
110     % gravity = 9.810000000000000E+00 /* Grav accel ( m/s^2 ) */
111 edhill 1.4 p = 0.09998 * 9.81 * R(il);
112     bcube(:,:,icf) = ...
113     eh3densjmd95( squeeze(scube(:,:,icf)), ...
114     squeeze(tcube(:,:,icf)), p ) * -9.81 / 1000;
115 edhill 1.1 if il > 1
116 edhill 1.4 p = 0.09998 * 9.81 * R(il-1);
117     bcubem1(:,:,icf) = ...
118     eh3densjmd95( scube(:,:,icf), ...
119     tcube(:,:,icf), p ) * -9.81 / 1000;
120 edhill 1.1 end
121     end
122 edhill 1.2 tmask = double(tcube ~= 0.0);
123 edhill 1.4 scube = scube .* tmask;
124 edhill 1.2 bcube = bcube .* tmask;
125     bcubem1 = bcubem1 .* tmask;
126    
127 edhill 1.4 % Fill the (ne+1)*(ne+1) grid with T,S,B values
128 edhill 1.1 ni = ne; nip1 = ni + 1;
129     nj = ne; njp1 = nj + 1;
130 edhill 1.4 tcubep1 = zeros( [ nip1 njp1 6 ] );
131     scubep1 = zeros( [ nip1 njp1 6 ] );
132 edhill 1.1 bcubep1 = zeros( [ nip1 njp1 6 ] );
133     for icf = 1:6
134 edhill 1.4 tcubep1(2:nip1,2:njp1,icf) = tcube(:,:,icf);
135     scubep1(2:nip1,2:njp1,icf) = scube(:,:,icf);
136 edhill 1.1 bcubep1(2:nip1,2:njp1,icf) = bcube(:,:,icf);
137     end
138    
139 edhill 1.4 % Do the upwind-edge T exchanges
140     tcubep1(1,2:njp1,1) = tcube(ni:-1:1,nj,5); % -
141     tcubep1(2:nip1,1,1) = tcube(1:ni,nj,6); % -
142     tcubep1(1,2:njp1,2) = tcube(ni,1:nj,1); % -
143     tcubep1(2:nip1,1,2) = tcube(ni,nj:-1:1,6); % -
144     tcubep1(1,2:njp1,3) = tcube(ni:-1:1,nj,1); % -
145     tcubep1(2:nip1,1,3) = tcube(1:ni,nj,2); % -
146     tcubep1(1,2:njp1,4) = tcube(ni,1:nj,3); % -
147     tcubep1(2:nip1,1,4) = tcube(ni,nj:-1:1,2); % -
148     tcubep1(1,2:njp1,5) = tcube(ni:-1:1,nj,3); % -
149     tcubep1(2:nip1,1,5) = tcube(1:ni,nj,4); % -
150     tcubep1(1,2:njp1,6) = tcube(ni,1:nj,5); % -
151     tcubep1(2:nip1,1,6) = tcube(ni,nj:-1:1,4); % -
152    
153     % Do the upwind-edge S exchanges
154     scubep1(1,2:njp1,1) = scube(ni:-1:1,nj,5); % -
155     scubep1(2:nip1,1,1) = scube(1:ni,nj,6); % -
156     scubep1(1,2:njp1,2) = scube(ni,1:nj,1); % -
157     scubep1(2:nip1,1,2) = scube(ni,nj:-1:1,6); % -
158     scubep1(1,2:njp1,3) = scube(ni:-1:1,nj,1); % -
159     scubep1(2:nip1,1,3) = scube(1:ni,nj,2); % -
160     scubep1(1,2:njp1,4) = scube(ni,1:nj,3); % -
161     scubep1(2:nip1,1,4) = scube(ni,nj:-1:1,2); % -
162     scubep1(1,2:njp1,5) = scube(ni:-1:1,nj,3); % -
163     scubep1(2:nip1,1,5) = scube(1:ni,nj,4); % -
164     scubep1(1,2:njp1,6) = scube(ni,1:nj,5); % -
165     scubep1(2:nip1,1,6) = scube(ni,nj:-1:1,4); % -
166    
167 edhill 1.1 % Do the upwind-edge B exchanges
168     bcubep1(1,2:njp1,1) = bcube(ni:-1:1,nj,5); % -
169     bcubep1(2:nip1,1,1) = bcube(1:ni,nj,6); % -
170     bcubep1(1,2:njp1,2) = bcube(ni,1:nj,1); % -
171     bcubep1(2:nip1,1,2) = bcube(ni,nj:-1:1,6); % -
172     bcubep1(1,2:njp1,3) = bcube(ni:-1:1,nj,1); % -
173     bcubep1(2:nip1,1,3) = bcube(1:ni,nj,2); % -
174     bcubep1(1,2:njp1,4) = bcube(ni,1:nj,3); % -
175     bcubep1(2:nip1,1,4) = bcube(ni,nj:-1:1,2); % -
176     bcubep1(1,2:njp1,5) = bcube(ni:-1:1,nj,3); % -
177     bcubep1(2:nip1,1,5) = bcube(1:ni,nj,4); % -
178     bcubep1(1,2:njp1,6) = bcube(ni,1:nj,5); % -
179     bcubep1(2:nip1,1,6) = bcube(ni,nj:-1:1,4); % -
180    
181 edhill 1.4 % Get T values on the U,V grid points
182     masku = 1.0 - abs(diff(double(tcubep1(2:nip1,:,:) == 0.0),1,2));
183     maskv = 1.0 - abs(diff(double(tcubep1(:,2:nip1,:) == 0.0),1,1));
184     diffu = 0.5*diff(tcubep1(2:nip1,:,:),1,2);
185     diffv = 0.5*diff(tcubep1(:,2:nip1,:),1,1);
186     tonu = tcube(:,:,:) + masku.*diffu;
187     tonv = tcube(:,:,:) + maskv.*diffv;
188    
189     % Get S values on the U,V grid points
190     diffu = 0.5*diff(scubep1(2:nip1,:,:),1,2);
191     diffv = 0.5*diff(scubep1(:,2:nip1,:),1,1);
192     sonu = scube(:,:,:) + masku.*diffu;
193     sonv = scube(:,:,:) + maskv.*diffv;
194    
195 edhill 1.1 % Get B values on the U grid points
196     diffu = 0.5*diff(bcubep1(2:nip1,:,:),1,2);
197 edhill 1.4 diffv = 0.5*diff(bcubep1(:,2:nip1,:),1,1);
198 edhill 1.1 bonu = bcube(:,:,:) + masku.*diffu;
199     bonv = bcube(:,:,:) + maskv.*diffv;
200    
201     if ((newyear ~= oldyear) && (nm > 0)) || (it == length(ilist))
202    
203     % Write if its a new year or the last of all entries
204 edhill 1.4 disp([' ==> Writing files for ==> ' sprintf('%d',oldyear)]);
205     for io = 1:size(vnam,1)
206     comm = sprintf( ...
207     '%s_ido = fopen(''%s_tave_%d'', ''a'', ''ieee-be'');', ...
208     vnam(io,:), vnam(io,:), oldyear );
209     eval(comm)
210     comm = sprintf( '%s_acc = %s_acc ./ nm;',vnam(io,:), ...
211     vnam(io,:));
212     eval(comm)
213     comm = sprintf('fwrite(%s_ido, %s_acc, ''real*4'');', ...
214     vnam(io,:), vnam(io,:) );
215     eval(comm)
216     comm = sprintf( 'fclose(%s_ido);', vnam(io,:) );
217     eval(comm)
218    
219     % Re-zero the accumulators
220     comm = sprintf('%s_acc = zeros(ne,ne,6);', vnam(io,:));
221     eval(comm)
222     end
223    
224 edhill 1.1 nm = 0;
225    
226     end
227    
228     % Accumulate partial sums
229 edhill 1.4 U__acc = U__acc + ucube;
230     V__acc = V__acc + vcube;
231     T__acc = T__acc + tcube;
232     S__acc = S__acc + scube;
233     B__acc = B__acc + bcube;
234     B1_acc = B1_acc + bcubem1;
235    
236     UT_acc = UT_acc + tonu.*ucube;
237     VT_acc = VT_acc + tonv.*vcube;
238     US_acc = US_acc + sonu.*ucube;
239     VS_acc = VS_acc + sonv.*vcube;
240     UB_acc = UB_acc + bonu.*ucube;
241     VB_acc = VB_acc + bonv.*vcube;
242    
243 edhill 1.1 nm = nm + 1;
244    
245     oldyear = newyear;
246    
247     end
248     end
249 edhill 1.4

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