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gmaze |
1.1 |
% Script to extract a subdomain from a CS510 simulation |
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% and write in netCDF format on a regular lat/lon grid (1/4) |
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% SPECIAL U V FIELDS !! |
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% |
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clear |
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global sla |
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pv_checkpath |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Global setup: |
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% Restrict global domain to: |
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subdomain = 3; % North Atlantic |
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% Path to find input binary Cube sphere files: |
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pathi = './bin_cube49'; |
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% Path where the netcdf outputs will be stored: |
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patho = './ecco2_cube49_netcdf'; |
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patho = strcat(patho,sla,'monthly'); |
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%patho = strcat(patho,sla,'six_hourly'); |
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% Time step (for date conversion): |
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dt = 1200; |
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% Variables to analyse (index into otab): |
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otab = cs510grid_outputs_table; % from the 1/8 latlon definition |
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wvar = []; |
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dimen = 3; |
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switch dimen |
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case 3 % 3D fields: |
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wvar = [wvar 39]; % UVEL |
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wvar = [wvar 47]; % VVEL |
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case 2 % 2D fields: |
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end %switch number of dimensions |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Pre-process |
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% Get the grid: |
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path_grid = './grid'; |
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XC = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'XC')),1,'float32'); |
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YC = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'YC')),1,'float32'); |
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XG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'XG')),1,'float32'); |
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YG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'YG')),1,'float32'); |
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dxG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'DXG')),1,'float32'); |
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dyG = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'DYG')),1,'float32'); |
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RAC = readrec_cs510(sprintf('%s.data',strcat(path_grid,sla,'RAC')),1,'float32'); |
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GRID_125; |
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ZC = - [0 cumsum(thk125(1:length(thk125)-1))]; |
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clear dpt125 lat125 lon125 thk125 |
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% How to move to a lat/lon grid: |
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% CS510 is about 22km average resolution, ie: 1/4 degree |
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XI = -180 : 1/4 : 180; |
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YI = -90 : 1/4 : 90; |
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ZI = ZC; |
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if ~exist('CS510_to_LATLON025.mat','file') |
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del = cube2latlon_preprocess(XC,YC,XI,YI); |
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save('CS510_to_LATLON025.mat','XI','YI','XC','YC','del','-v6'); |
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else |
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load('CS510_to_LATLON025.mat') |
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end |
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% Set subrange - Longitude given as degrees east |
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% (exact values come from the 1/8 lat-lon grid) |
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switch subdomain |
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case 3 |
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sub_name = 'north_atlantic'; |
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lonmin = 276.0625; |
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lonmax = 359.9375; |
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latmin = 12.0975; |
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latmax = 53.2011; |
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depmin = 1; % !!! indices |
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depmax = 29; % !!! indices |
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if dimen == 3, depmax = 29; |
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else, depmax = 1;end |
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LIMITS = [lonmin lonmax latmin latmax depmin depmax] |
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if 0 |
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m_proj('mercator','long',[270 365],'lat',[0 60]); |
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clf;hold on;m_coast;m_grid; |
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m_line(LIMITS([1 2 2 1 1]),LIMITS([3 3 4 4 3]),'color','k','linewidth',2); |
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title(sub_name); |
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end %if 1/0 |
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end |
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% Get subdomain horizontal axis: |
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xi = XI(max(find(XI<=LIMITS(1))):max(find(XI<=LIMITS(2)))); |
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yi = YI(max(find(YI<=LIMITS(3))):max(find(YI<=LIMITS(4)))); |
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zi = ZI(LIMITS(5):LIMITS(6)); |
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filU = otab{39,1}; ifield = 39; |
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filV = otab{47,1}; |
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% %%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Get info over the time loop |
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% Get the file list: |
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fildU = filU; % Insert condition here for special files: |
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lU = dir(strcat(pathi,sla,fildU)); |
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fildV = filV; % Insert condition here for special files: |
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lV = dir(strcat(pathi,sla,fildV)); |
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% Get the U files list: |
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it = 0; |
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clear ll |
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for il = 1 : size(lU,1) |
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if ~lU(il).isdir & ... |
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findstr(lU(il).name,strcat(filU,'.')) % is'it the file type we want ? |
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it = it + 1; |
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ll(it).name = lU(il).name; |
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end %if |
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end %for il |
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% Create the timetable of U: |
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for il = 1 : size(ll,2) |
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filin = ll(il).name; |
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% Now extract the stepnum from : %s.%10.10d.data |
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ic = findstr(filin,filU)+length(filU)+1; i = 1; clear stepnum |
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while filin(ic) ~= '.' |
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stepnum(i) = filin(ic); i = i + 1; ic = ic + 1; |
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end |
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ID = str2num(stepnum); |
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TIME(il,:) = datestr(datenum(1992,1,1)+ID*dt/60/60/24,'yyyymmddHHMM'); |
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end |
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nt = size(TIME,1); |
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% Then we check if we have V when we have U: |
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for it = 1 : nt |
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snapshot = TIME(it,:); |
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filUs = ll(it).name; |
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filVs = strcat(filV,filUs(findstr(filUs,filU)+length(filU):end)); |
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if ~exist(strcat(pathi,sla,fildV,sla,filVs),'file') |
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TIME(it,:) = NaN; |
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end |
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end |
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itt = 0; |
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for it = 1 : nt |
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if find(isnan(TIME(it,:))==0) |
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itt = itt + 1; |
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TI(itt,:) = TIME(it,:); |
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end |
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end |
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TIME = TI; clear TI |
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nt = size(TIME,1); |
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% %%%%%%%%%%%%%%% |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Loop over time |
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for it = 1 : nt |
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snapshot = TIME(it,:); |
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ID = 60*60*24/dt*( datenum(snapshot,'yyyymmddHHMM') - datenum(1992,1,1) ); |
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filin = ll(it).name; |
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disp('') |
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disp(strcat('Processing: ',num2str(ID),'//',snapshot)) |
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dirout = strcat(patho,sla,TIME(it,:),sla); |
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filUout = sprintf('%s.%s.nc',filU,sub_name); |
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filVout = sprintf('%s.%s.nc',filV,sub_name); |
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if ~exist(strcat(dirout,sla,filUout),'file') % File already exists ? |
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%%%% READ FILES U AND V |
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switch otab{ifield,6} |
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case 4, flt = 'float32'; |
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case 8, flt = 'float64'; |
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end |
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t0 = clock; |
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for iC = 1 : 2 |
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if iC == 1, fild = fildU; end |
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if iC == 2, fild = fildV; filin = strcat(filV,filin(findstr(filin,filU)+length(filU):end)); end |
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if findstr(filin,'.gz') % Gunzip file, special care ! |
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disp('|----> Find a file with gz extension, work on uncompressed file ...') |
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% 1: copy the filename with it path into gunzip_1_file.txt |
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fid1 = fopen('gunzip_1_file.txt','w'); |
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fprintf(fid1,'%s',strcat(pathi,sla,fild,sla,filin));fclose(fid1); |
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% 2: uncompress the file into a temporary folder: |
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disp('|------> uncompressing the file ...') |
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! ./gunzip_1_file.bat |
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disp(strcat('|--------: ',num2str(etime(t0,clock)))) |
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% 3: Read the uncompress file: |
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disp('|--> reading it ...') |
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C = readrec_cs510(strcat('gunzip_1_file',sla,'tempo.data'),LIMITS(6),flt); |
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disp(strcat('|----: ',num2str(etime(t0,clock)))) |
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% 4: Suppress it |
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! \rm ./gunzip_1_file/tempo.data |
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else % Simply read the file: |
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disp('|--> reading it ...') |
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C = readrec_cs510(strcat(pathi,sla,fild,sla,filin),LIMITS(6),flt); |
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disp(strcat('|----: ',num2str(etime(t0,clock)))) |
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end |
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if iC == 1, CU = C; end |
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if iC == 2, CV = C; end |
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end %for iC |
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clear C |
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%%%% RESTRICT TO SUBDOMAIN |
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disp('|--> get subdomain ...') |
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% Restrict vertical to subdomain: |
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if LIMITS(5) ~= 1 |
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disp('|----> vertical ...'); |
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CU = CU(:,:,LIMITS(5):end); |
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CV = CV(:,:,LIMITS(5):end); |
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end |
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% Clean the field: |
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CU(find(CU==0)) = NaN; |
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CV(find(CV==0)) = NaN; |
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% Move the field into lat/lon grid: |
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disp('|----> Move to lat/lon grid ...'); |
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[CU CV] = uvcube2latlon_fast3(del,CU,CV,XG,YG,RAC,dxG,dyG); |
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% And then restrict horizontal to subdomain: |
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disp('|----> horizontal ...'); |
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CU = CU(max(find(XI<=LIMITS(1))):max(find(XI<=LIMITS(2))),... |
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max(find(YI<=LIMITS(3))):max(find(YI<=LIMITS(4))),:); |
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CV = CV(max(find(XI<=LIMITS(1))):max(find(XI<=LIMITS(2))),... |
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max(find(YI<=LIMITS(3))):max(find(YI<=LIMITS(4))),:); |
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%%%% RECORD |
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disp('|--> record netcdf file ...') |
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if 1 % Realy want to record ? |
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if ~exist(dirout,'dir') |
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mkdir(dirout); |
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end |
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for iC = 1 : 2 |
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if iC==1, ifield=39; C = CU; fil = filU; filout = filUout; end |
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if iC==2, ifield=47; C = CV; fil = filV; filout = filVout; end |
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fid1 = fopen('inprogress.txt','w'); |
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fprintf(fid1,'%s',strcat(dirout,sla,filout));fclose(fid1); |
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nc = netcdf('inprogress.nc','clobber'); |
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nc('X') = length(xi); |
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nc('Y') = length(yi); |
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nc('Z') = length(zi); |
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nc{'X'}='X'; |
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nc{'Y'}='Y'; |
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nc{'Z'}='Z'; |
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nc{'X'}.uniquename='X'; |
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nc{'X'}.long_name='longitude'; |
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nc{'X'}.gridtype=ncint(0); |
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nc{'X'}.units='degrees_east'; |
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nc{'X'}(:) = xi; |
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nc{'Y'}.uniquename='Y'; |
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nc{'Y'}.long_name='latitude'; |
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nc{'Y'}.gridtype=ncint(0); |
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nc{'Y'}.units='degrees_north'; |
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nc{'Y'}(:) = yi; |
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nc{'Z'}.uniquename='Z'; |
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nc{'Z'}.long_name='depth'; |
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nc{'Z'}.gridtype=ncint(0); |
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nc{'Z'}.units='m'; |
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nc{'Z'}(:) = zi; |
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ncid = fil; |
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nc{ncid}={'Z' 'Y' 'X'}; |
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nc{ncid}.missing_value = ncdouble(NaN); |
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nc{ncid}.FillValue_ = ncdouble(0.0); |
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nc{ncid}(:,:,:) = permute(C,[3 2 1]); |
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nc{ncid}.units = otab{ifield,5}; |
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close(nc); |
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! ./inprogress.bat |
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end %if 1/0 want to record ? |
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disp(strcat('|--: ',num2str(etime(t0,clock)))) |
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else |
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disp(strcat('|--> Skip file (already done):',dirout,sla,filout)) |
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end %if %file exist |
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end %for iC |
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end %for it |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% END Loop over time |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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