| 1 |
% Script to extract a subdomain from a CS510 simulation |
| 2 |
% and write in netCDF format on a regular lat/lon grid (1/4) |
| 3 |
% SPECIAL U V FIELDS !! |
| 4 |
% |
| 5 |
clear |
| 6 |
global sla |
| 7 |
pv_checkpath |
| 8 |
|
| 9 |
|
| 10 |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Global setup: |
| 11 |
% Restrict global domain to: |
| 12 |
subdomain = 3; % North Atlantic |
| 13 |
|
| 14 |
% Path to find input binary Cube sphere files: |
| 15 |
pathi = './bin_cube49'; |
| 16 |
|
| 17 |
% Path where the netcdf outputs will be stored: |
| 18 |
patho = './ecco2_cube49_netcdf'; |
| 19 |
patho = strcat(patho,sla,'monthly'); |
| 20 |
%patho = strcat(patho,sla,'six_hourly'); |
| 21 |
|
| 22 |
% Time step (for date conversion): |
| 23 |
dt = 1200; |
| 24 |
|
| 25 |
% Variables to analyse (index into otab): |
| 26 |
otab = cs510grid_outputs_table; % from the 1/8 latlon definition |
| 27 |
wvar = []; |
| 28 |
dimen = 3; |
| 29 |
switch dimen |
| 30 |
case 3 % 3D fields: |
| 31 |
wvar = [wvar 39]; % UVEL |
| 32 |
wvar = [wvar 47]; % VVEL |
| 33 |
case 2 % 2D fields: |
| 34 |
end %switch number of dimensions |
| 35 |
|
| 36 |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Pre-process |
| 37 |
% Get the grid: |
| 38 |
path_grid = './grid'; |
| 39 |
XC = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'XC')),1,'float32'); |
| 40 |
YC = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'YC')),1,'float32'); |
| 41 |
XG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'XG')),1,'float32'); |
| 42 |
YG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'YG')),1,'float32'); |
| 43 |
dxG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'DXG')),1,'float32'); |
| 44 |
dyG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'DYG')),1,'float32'); |
| 45 |
RAC = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'RAC')),1,'float32'); |
| 46 |
GRID_125; |
| 47 |
ZC = - [0 cumsum(thk125(1:length(thk125)-1))]; |
| 48 |
clear dpt125 lat125 lon125 thk125 |
| 49 |
|
| 50 |
% How to move to a lat/lon grid: |
| 51 |
% CS510 is about 22km average resolution, ie: 1/4 degree |
| 52 |
XI = -180 : 1/4 : 180; |
| 53 |
YI = -90 : 1/4 : 90; |
| 54 |
ZI = ZC; |
| 55 |
if ~exist('CS510_to_LATLON025.mat','file') |
| 56 |
del = cube2latlon_preprocess(XC,YC,XI,YI); |
| 57 |
save('CS510_to_LATLON025.mat','XI','YI','XC','YC','del','-v6'); |
| 58 |
else |
| 59 |
load('CS510_to_LATLON025.mat') |
| 60 |
end |
| 61 |
|
| 62 |
% Set subrange - Longitude given as degrees east |
| 63 |
% (exact values come from the 1/8 lat-lon grid) |
| 64 |
switch subdomain |
| 65 |
case 3 |
| 66 |
sub_name = 'north_atlantic'; |
| 67 |
lonmin = 276.0625; |
| 68 |
lonmax = 359.9375; |
| 69 |
latmin = 12.0975; |
| 70 |
latmax = 53.2011; |
| 71 |
depmin = 1; % !!! indices |
| 72 |
depmax = 29; % !!! indices |
| 73 |
if dimen == 3, depmax = 29; |
| 74 |
else, depmax = 1;end |
| 75 |
LIMITS = [lonmin lonmax latmin latmax depmin depmax] |
| 76 |
if 0 |
| 77 |
m_proj('mercator','long',[270 365],'lat',[0 60]); |
| 78 |
clf;hold on;m_coast;m_grid; |
| 79 |
m_line(LIMITS([1 2 2 1 1]),LIMITS([3 3 4 4 3]),'color','k','linewidth',2); |
| 80 |
title(sub_name); |
| 81 |
end %if 1/0 |
| 82 |
end |
| 83 |
|
| 84 |
% Get subdomain horizontal axis: |
| 85 |
xi = XI(max(find(XI<=LIMITS(1))):max(find(XI<=LIMITS(2)))); |
| 86 |
yi = YI(max(find(YI<=LIMITS(3))):max(find(YI<=LIMITS(4)))); |
| 87 |
zi = ZI(LIMITS(5):LIMITS(6)); |
| 88 |
|
| 89 |
filU = otab{39,1}; ifield = 39; |
| 90 |
filV = otab{47,1}; |
| 91 |
|
| 92 |
% %%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 93 |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Get info over the time loop |
| 94 |
% Get the file list: |
| 95 |
fildU = filU; % Insert condition here for special files: |
| 96 |
lU = dir(strcat(pathi,sla,fildU)); |
| 97 |
fildV = filV; % Insert condition here for special files: |
| 98 |
lV = dir(strcat(pathi,sla,fildV)); |
| 99 |
|
| 100 |
% Get the U files list: |
| 101 |
it = 0; |
| 102 |
clear ll |
| 103 |
for il = 1 : size(lU,1) |
| 104 |
if ~lU(il).isdir & ... |
| 105 |
findstr(lU(il).name,strcat(filU,'.')) % is'it the file type we want ? |
| 106 |
it = it + 1; |
| 107 |
ll(it).name = lU(il).name; |
| 108 |
end %if |
| 109 |
end %for il |
| 110 |
% Create the timetable of U: |
| 111 |
for il = 1 : size(ll,2) |
| 112 |
filin = ll(il).name; |
| 113 |
% Now extract the stepnum from : %s.%10.10d.data |
| 114 |
ic = findstr(filin,filU)+length(filU)+1; i = 1; clear stepnum |
| 115 |
while filin(ic) ~= '.' |
| 116 |
stepnum(i) = filin(ic); i = i + 1; ic = ic + 1; |
| 117 |
end |
| 118 |
ID = str2num(stepnum); |
| 119 |
TIME(il,:) = datestr(datenum(1992,1,1)+ID*dt/60/60/24,'yyyymmddHHMM'); |
| 120 |
end |
| 121 |
nt = size(TIME,1); |
| 122 |
|
| 123 |
% Then we check if we have V when we have U: |
| 124 |
for it = 1 : nt |
| 125 |
snapshot = TIME(it,:); |
| 126 |
filUs = ll(it).name; |
| 127 |
filVs = strcat(filV,filUs(findstr(filUs,filU)+length(filU):end)); |
| 128 |
if ~exist(strcat(pathi,sla,fildV,sla,filVs),'file') |
| 129 |
TIME(it,:) = NaN; |
| 130 |
end |
| 131 |
end |
| 132 |
itt = 0; |
| 133 |
for it = 1 : nt |
| 134 |
if find(isnan(TIME(it,:))==0) |
| 135 |
itt = itt + 1; |
| 136 |
TI(itt,:) = TIME(it,:); |
| 137 |
end |
| 138 |
end |
| 139 |
TIME = TI; clear TI |
| 140 |
nt = size(TIME,1); |
| 141 |
|
| 142 |
|
| 143 |
% %%%%%%%%%%%%%%% |
| 144 |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Loop over time |
| 145 |
for it = 1 : nt |
| 146 |
snapshot = TIME(it,:); |
| 147 |
ID = 60*60*24/dt*( datenum(snapshot,'yyyymmddHHMM') - datenum(1992,1,1) ); |
| 148 |
filin = ll(it).name; |
| 149 |
disp('') |
| 150 |
disp(strcat('Processing: ',num2str(ID),'//',snapshot)) |
| 151 |
dirout = strcat(patho,sla,TIME(it,:),sla); |
| 152 |
filUout = sprintf('%s.%s.nc',filU,sub_name); |
| 153 |
filVout = sprintf('%s.%s.nc',filV,sub_name); |
| 154 |
|
| 155 |
if ~exist(strcat(dirout,sla,filUout),'file') % File already exists ? |
| 156 |
|
| 157 |
%%%% READ FILES U AND V |
| 158 |
switch otab{ifield,6} |
| 159 |
case 4, flt = 'float32'; |
| 160 |
case 8, flt = 'float64'; |
| 161 |
end |
| 162 |
t0 = clock; |
| 163 |
for iC = 1 : 2 |
| 164 |
if iC == 1, fild = fildU; end |
| 165 |
if iC == 2, fild = fildV; filin = strcat(filV,filin(findstr(filin,filU)+length(filU):end)); end |
| 166 |
if findstr(filin,'.gz') % Gunzip file, special care ! |
| 167 |
disp('|----> Find a file with gz extension, work on uncompressed file ...') |
| 168 |
|
| 169 |
% 1: copy the filename with it path into gunzip_1_file.txt |
| 170 |
fid1 = fopen('gunzip_1_file.txt','w'); |
| 171 |
fprintf(fid1,'%s',strcat(pathi,sla,fild,sla,filin));fclose(fid1); |
| 172 |
|
| 173 |
% 2: uncompress the file into a temporary folder: |
| 174 |
disp('|------> uncompressing the file ...') |
| 175 |
! ./gunzip_1_file.bat |
| 176 |
disp(strcat('|--------: ',num2str(etime(t0,clock)))) |
| 177 |
|
| 178 |
% 3: Read the uncompress file: |
| 179 |
disp('|--> reading it ...') |
| 180 |
C = readrec_cs510(strcat('gunzip_1_file',sla,'tempo.data'),LIMITS(6),flt); |
| 181 |
disp(strcat('|----: ',num2str(etime(t0,clock)))) |
| 182 |
|
| 183 |
% 4: Suppress it |
| 184 |
! \rm ./gunzip_1_file/tempo.data |
| 185 |
|
| 186 |
else % Simply read the file: |
| 187 |
disp('|--> reading it ...') |
| 188 |
C = readrec_cs510(strcat(pathi,sla,fild,sla,filin),LIMITS(6),flt); |
| 189 |
disp(strcat('|----: ',num2str(etime(t0,clock)))) |
| 190 |
end |
| 191 |
if iC == 1, CU = C; end |
| 192 |
if iC == 2, CV = C; end |
| 193 |
end %for iC |
| 194 |
clear C |
| 195 |
|
| 196 |
%%%% RESTRICT TO SUBDOMAIN |
| 197 |
disp('|--> get subdomain ...') |
| 198 |
% Restrict vertical to subdomain: |
| 199 |
if LIMITS(5) ~= 1 |
| 200 |
disp('|----> vertical ...'); |
| 201 |
CU = CU(:,:,LIMITS(5):end); |
| 202 |
CV = CV(:,:,LIMITS(5):end); |
| 203 |
end |
| 204 |
% Clean the field: |
| 205 |
CU(find(CU==0)) = NaN; |
| 206 |
CV(find(CV==0)) = NaN; |
| 207 |
% Move the field into lat/lon grid: |
| 208 |
disp('|----> Move to lat/lon grid ...'); |
| 209 |
[CU CV] = uvcube2latlon_fast3(del,CU,CV,XG,YG,RAC,dxG,dyG); |
| 210 |
|
| 211 |
% And then restrict horizontal to subdomain: |
| 212 |
disp('|----> horizontal ...'); |
| 213 |
CU = CU(max(find(XI<=LIMITS(1))):max(find(XI<=LIMITS(2))),... |
| 214 |
max(find(YI<=LIMITS(3))):max(find(YI<=LIMITS(4))),:); |
| 215 |
CV = CV(max(find(XI<=LIMITS(1))):max(find(XI<=LIMITS(2))),... |
| 216 |
max(find(YI<=LIMITS(3))):max(find(YI<=LIMITS(4))),:); |
| 217 |
|
| 218 |
|
| 219 |
%%%% RECORD |
| 220 |
disp('|--> record netcdf file ...') |
| 221 |
|
| 222 |
if 1 % Realy want to record ? |
| 223 |
|
| 224 |
if ~exist(dirout,'dir') |
| 225 |
mkdir(dirout); |
| 226 |
end |
| 227 |
|
| 228 |
for iC = 1 : 2 |
| 229 |
if iC==1, ifield=39; C = CU; fil = filU; filout = filUout; end |
| 230 |
if iC==2, ifield=47; C = CV; fil = filV; filout = filVout; end |
| 231 |
fid1 = fopen('inprogress.txt','w'); |
| 232 |
fprintf(fid1,'%s',strcat(dirout,sla,filout));fclose(fid1); |
| 233 |
|
| 234 |
nc = netcdf('inprogress.nc','clobber'); |
| 235 |
|
| 236 |
nc('X') = length(xi); |
| 237 |
nc('Y') = length(yi); |
| 238 |
nc('Z') = length(zi); |
| 239 |
|
| 240 |
nc{'X'}='X'; |
| 241 |
nc{'Y'}='Y'; |
| 242 |
nc{'Z'}='Z'; |
| 243 |
|
| 244 |
nc{'X'}.uniquename='X'; |
| 245 |
nc{'X'}.long_name='longitude'; |
| 246 |
nc{'X'}.gridtype=ncint(0); |
| 247 |
nc{'X'}.units='degrees_east'; |
| 248 |
nc{'X'}(:) = xi; |
| 249 |
|
| 250 |
nc{'Y'}.uniquename='Y'; |
| 251 |
nc{'Y'}.long_name='latitude'; |
| 252 |
nc{'Y'}.gridtype=ncint(0); |
| 253 |
nc{'Y'}.units='degrees_north'; |
| 254 |
nc{'Y'}(:) = yi; |
| 255 |
|
| 256 |
nc{'Z'}.uniquename='Z'; |
| 257 |
nc{'Z'}.long_name='depth'; |
| 258 |
nc{'Z'}.gridtype=ncint(0); |
| 259 |
nc{'Z'}.units='m'; |
| 260 |
nc{'Z'}(:) = zi; |
| 261 |
|
| 262 |
ncid = fil; |
| 263 |
nc{ncid}={'Z' 'Y' 'X'}; |
| 264 |
nc{ncid}.missing_value = ncdouble(NaN); |
| 265 |
nc{ncid}.FillValue_ = ncdouble(0.0); |
| 266 |
nc{ncid}(:,:,:) = permute(C,[3 2 1]); |
| 267 |
nc{ncid}.units = otab{ifield,5}; |
| 268 |
|
| 269 |
close(nc); |
| 270 |
! ./inprogress.bat |
| 271 |
|
| 272 |
end %if 1/0 want to record ? |
| 273 |
disp(strcat('|--: ',num2str(etime(t0,clock)))) |
| 274 |
|
| 275 |
else |
| 276 |
disp(strcat('|--> Skip file (already done):',dirout,sla,filout)) |
| 277 |
end %if %file exist |
| 278 |
|
| 279 |
|
| 280 |
end %for iC |
| 281 |
|
| 282 |
end %for it |
| 283 |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% END Loop over time |
| 284 |
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 285 |
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