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% |
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% $Id: assemble_TR.m,v 1.5 2006/02/06 13:19:21 edhill Exp $ |
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% |
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% Ed Hill |
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% |
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% Generate the APE TR fields: |
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% |
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|
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%====================================================================== |
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% |
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% Define the connections between the APE "ML" variables and the |
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% MITgcm diagnostics output |
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% |
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nfacets = 6; |
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months.i_start = 7; |
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months.i_end = 42; |
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bname = 'data/TRall.t%03d.nc'; |
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gname = 'data/grid.t%03d.nc'; |
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r_con_name = 'scrip_regrid/rmp_CS32_to_LL128x64_conserv.nc'; |
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r_dwt_name = 'scrip_regrid/rmp_CS32_to_LL128x64_distwgt.nc'; |
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oname = { 'TR_fields.nc' }; |
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|
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flags.regrid_type_for_vec = 2; |
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flags.debug_lev = 0; |
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flags.punits_conv = 0.01; |
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|
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% Get the following from: |
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% ! (cd ../../ape_data_specs/ ; ./tr_parse.sh) |
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vars = {}; |
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vars{1} = {'TR01','tr_tppn','PREACC','precipitation_flux','kg m-2 s-1','-','0.000011574074','ee'}; |
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vars{2} = {'TR02','tr_lw_toa','OLR','toa_outgoing_longwave_flux','W m-2','-','1','cc'}; |
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vars{3} = {'TR03','tr_om500','WVEL','omega','Pa s-1','-','1','ec'}; |
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vars{4} = {'TR04','tr_u250','UVEL','eastward_wind','m s-1','u','1','ee'}; |
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vars{5} = {'TR05','tr_v250','VVEL','northward_wind','m s-1','v','1','ee'}; |
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vars{6} = {'TR06','tr_mslp','RSURF','air_pressure_at_sea_level','Pa','-','1','cc'}; |
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|
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|
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%====================================================================== |
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% |
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% Open the input files and get the (minimum) number of time steps |
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% available across all the files |
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% |
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disp('Finding available time steps') |
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|
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ncl = {}; |
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nTmin = 0; |
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ifacet = 1; |
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for ifacet = 1:nfacets |
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fname = sprintf(bname,ifacet); |
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nc = netcdf(fname, 'nowrite'); |
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ncl{ifacet} = nc; |
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T = nc{'T'}(:); |
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nT = length(T); |
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if (ifacet == 1) |
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nTmin = nT; |
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else |
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nTmin = min(nTmin, nT); |
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end |
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nc = []; |
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end |
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disp(sprintf(' total iterations found = %d',nTmin)); |
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|
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|
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%====================================================================== |
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% |
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og = []; |
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og.nlat = 64; |
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og.nlon = 128; |
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og.latcell = 180/og.nlat; |
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og.loncell = 360/og.nlon; |
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og.lat = linspace(-90+og.latcell/2, 90-og.latcell/2, og.nlat); |
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og.lon = linspace(0+og.loncell/2, 360-og.loncell/2, og.nlon); |
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og.latbnd(:,1) = og.lat - og.latcell/2.0; |
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og.latbnd(:,2) = og.lat + og.latcell/2.0; |
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og.lonbnd(:,1) = og.lon - og.loncell/2.0; |
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og.lonbnd(:,2) = og.lon + og.loncell/2.0; |
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|
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rgvar = { 'src_address', 'dst_address', 'remap_matrix' }; |
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rtype = { { 'con', r_con_name}, {'dwt', r_dwt_name } }; |
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for kk = 1:length(rtype) |
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nc = netcdf(rtype{kk}{2}, 'nowrite'); |
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for jj = 1:length(rgvar) |
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comm = sprintf('rgrid.%s.%s = nc{''%s''}(:);',... |
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rtype{kk}{1},rgvar{jj},rgvar{jj}); |
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eval(comm); |
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% disp(comm); |
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end |
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nc = close(nc); |
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end |
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|
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aa_regrid.x = rdmds('aa_regrid/XC'); |
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aa_regrid.y = rdmds('aa_regrid/YC'); |
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|
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disp('Reading -- Regridding -- Writing') |
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|
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nc_outf = netcdf(oname{1}, 'clobber'); |
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nc_outf.title = [ 'Aqua Planet: ' ... |
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'TR Fields' ]; |
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nc_outf.institution = 'MIT Dept. of EAPS, Cambridge, MA, USA'; |
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nc_outf.source = [ 'MITgcm: ' ]; |
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nc_outf.Conventions = 'CF-1.0'; |
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nc_outf.history = [ 'Original data produced: ' '' ]; |
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|
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nc_outf('time') = 0; % record dim |
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nc_outf('lon') = og.nlon; |
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nc_outf('lat') = og.nlat; |
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nc_outf('bnd') = 2; |
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|
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nc_outf{'time'} = ncdouble('time'); |
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nc_outf{'time'}.standard_name = 'time'; |
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nc_outf{'time'}.units = 'days since 0000-01-01 00:00'; |
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nc_outf{'time'}.bounds = 'time_bnds'; |
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% nc_outf{'time'}(:) = og.lon; |
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|
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nc_outf{'lon'} = ncdouble('lon'); |
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nc_outf{'lon'}.standard_name = 'longitude'; |
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nc_outf{'lon'}.units = 'degrees_east'; |
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nc_outf{'lon'}.bounds = 'lon_bnds'; |
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nc_outf{'lon'}(:) = og.lon; |
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|
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nc_outf{'lat'} = ncdouble('lat'); |
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nc_outf{'lat'}.standard_name = 'latitude'; |
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nc_outf{'lat'}.units = 'degrees_north'; |
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nc_outf{'lat'}.bounds = 'lat_bnds'; |
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nc_outf{'lat'}(:) = og.lat; |
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|
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nc_outf{'time_bnds'} = ncdouble('time','bnd'); |
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nc_outf{'time_bnds'}.ape_name = 'time interval endpoints'; |
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% nc_outf{'time_bnds'}(:) = og.lonbnd; |
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|
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nc_outf{'lon_bnds'} = ncdouble('lon','bnd'); |
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nc_outf{'lon_bnds'}.ape_name = 'longitude cell bounds'; |
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nc_outf{'lon_bnds'}.units = 'degrees_east'; |
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nc_outf{'lon_bnds'}(:) = og.lonbnd; |
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|
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nc_outf{'lat_bnds'} = ncdouble('lat','bnd'); |
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nc_outf{'lat_bnds'}.ape_name = 'latitude cell bounds'; |
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nc_outf{'lat_bnds'}.units = 'degrees_north'; |
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nc_outf{'lat_bnds'}(:) = og.latbnd; |
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|
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|
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for iv = 1:length(vars) |
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nc_outf{ vars{iv}{2} } = ncfloat( 'time', 'lat', 'lon' ); |
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nc_outf{ vars{iv}{2} }.ape_name = vars{iv}{4}; |
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nc_outf{ vars{iv}{2} }.units = vars{iv}{5}; |
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nc_outf{ vars{iv}{2} }.FillValue_ = 1.0e20; |
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end |
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|
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ne = 32; |
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|
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dat = []; |
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it = 1; |
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iv = 1; |
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ifacet = 1; |
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it0 = 2880; |
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for it = [ (it0+1):nTmin ] |
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|
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if mod(it-1,50) == 0 |
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disp(sprintf([ ' iteration = %6d ' datestr(now) ],it)); |
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end |
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|
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for iv = 1:length(vars) |
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for ifacet = 1:nfacets |
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|
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t0 = []; |
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vtmp = []; |
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|
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% WARN about missing variables |
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nc = ncl{ifacet}; |
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if prod(size(nc{vars{iv}{3}})) == 0 |
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if it == 1 |
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str = 'var "%s" does not exist in file "%s"'; |
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disp(sprintf([' Warning: ' str], vars{iv}{3}, name(nc))); |
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end |
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continue |
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end |
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|
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% get the data |
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t0 = nc{ vars{iv}{3} }(it,:,:); |
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|
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% horizontally interpolate to u,v to mass points |
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% |
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% this has changed so that now the "+1" points are garbage |
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% and must be ignored |
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dat(iv,ifacet).a = zeros([1 32 32]); |
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switch vars{iv}{6} |
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case 'u' |
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dat(iv,ifacet).a(1,:,:) = t0(:,1:ne); |
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case 'v' |
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dat(iv,ifacet).a(1,:,:) = t0(1:ne,:); |
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otherwise |
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dat(iv,ifacet).a(1,:,:) = t0; |
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end |
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|
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dat(iv,ifacet).n = 1; |
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|
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end |
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end |
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|
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% interpolate u,v to mass points |
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nc = ne; |
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ncp = nc + 1; |
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for iv = 1:length(vars) |
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switch vars{iv}{6} |
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case 'u' |
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|
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nr = size(dat(iv,1).a,1); |
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u3d = zeros(nc,nc,nr,6); |
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v3d = zeros(nc,nc,nr,6); |
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for fi = 1:6 |
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u3d(:,:,:,fi) = permute( dat(iv, fi).a, [3 2 1] ); |
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v3d(:,:,:,fi) = permute( dat(iv+1,fi).a, [3 2 1] ); |
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end |
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|
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u6t=zeros(ncp,nc,nr,6); |
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v6t=zeros(nc,ncp,nr,6); |
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u6t([1:nc],:,:,:)=u3d(:,:,:,:); |
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v6t(:,[1:nc],:,:)=v3d(:,:,:,:); |
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|
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u6t(ncp,[1:nc],:,1)=u3d(1,[1:nc],:,2); |
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u6t(ncp,[1:nc],:,2)=v3d([nc:-1:1],1,:,4); |
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u6t(ncp,[1:nc],:,3)=u3d(1,[1:nc],:,4); |
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u6t(ncp,[1:nc],:,4)=v3d([nc:-1:1],1,:,6); |
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u6t(ncp,[1:nc],:,5)=u3d(1,[1:nc],:,6); |
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u6t(ncp,[1:nc],:,6)=v3d([nc:-1:1],1,:,2); |
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|
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v6t([1:nc],ncp,:,1)=u3d(1,[nc:-1:1],:,3); |
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v6t([1:nc],ncp,:,2)=v3d([1:nc],1,:,3); |
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v6t([1:nc],ncp,:,3)=u3d(1,[nc:-1:1],:,5); |
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v6t([1:nc],ncp,:,4)=v3d([1:nc],1,:,5); |
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v6t([1:nc],ncp,:,5)=u3d(1,[nc:-1:1],:,1); |
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v6t([1:nc],ncp,:,6)=v3d([1:nc],1,:,1); |
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|
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for fi = 1:6 |
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dat(iv, fi).a = permute( ... |
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0.5*( u6t([1:nc],:,:,fi) + u6t([2:ncp],:,:,fi) ), [3 2 1] ); |
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dat(iv+1,fi).a = permute( ... |
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0.5*( v6t(:,[1:nc],:,fi) + v6t(:,[2:ncp],:,fi) ), [3 2 1] ); |
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end |
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|
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end |
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end |
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|
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% Units conversion |
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ave = []; |
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for iv = 1:length(vars) |
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ind = length(ave) + 1; |
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for ifacet = 1:nfacets |
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ave(ind).v(1,:,:,ifacet) = dat(iv,ifacet).a; |
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ave(ind).ivar = iv; |
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end |
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end |
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for ia = 1:length(ave) |
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if strcmp(vars{ ave(ia).ivar }{7}, '-') ~= 1 |
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eval(['fac = ' vars{ ave(ia).ivar }{7} ';']); |
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if fac ~= 1 |
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ave(ia).v = fac .* ave(ia).v; |
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end |
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end |
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end |
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|
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% regrid |
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ii = 1; |
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for ii = 1:length(ave) |
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|
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for iz = 1:size( ave(ii).v, 1 ) |
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|
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siz = size( ave(ii).v ); |
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dcp = zeros(prod(siz(2:4)),1); |
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nn = 0; |
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for fk = 1:size( ave(ii).v, 4 ) |
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for jk = 1:size( ave(ii).v, 3 ) |
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for ik = 1:size( ave(ii).v, 2 ) |
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nn = nn + 1; |
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dcp(nn) = ave(ii).v(iz,ik,jk,fk); |
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end |
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end |
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end |
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lld = zeros(og.nlat*og.nlon,1); |
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|
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if ( ( flags.regrid_type_for_vec > 0 ) ... |
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&& ( vars{ave(ii).ivar}{6} == 'u' ... |
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|| vars{ave(ii).ivar}{6} == 'v' ) ) |
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|
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if flags.regrid_type_for_vec == 1 |
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|
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% use distributed weights for vectors |
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for jj = 1:length(rgrid.dwt.src_address) |
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lld(rgrid.dwt.dst_address(jj)) = ... |
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lld(rgrid.dwt.dst_address(jj)) ... |
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+ ( dcp(rgrid.dwt.src_address(jj)) ... |
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* rgrid.dwt.remap_matrix(jj,1) ); |
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end |
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ave(ii).r(iz,:,:) = reshape(lld',og.nlat,og.nlon); |
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|
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elseif ( flags.regrid_type_for_vec == 2 ... |
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&& vars{ave(ii).ivar}{6} == 'u' ) |
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|
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% use Alistair's uvcube2latlon() for vectors |
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nsiz = size(ave(ii).v); |
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by6u = zeros([ nsiz(2)*nsiz(4) nsiz(3) ]); |
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by6v = zeros([ nsiz(2)*nsiz(4) nsiz(3) ]); |
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for kk = 1:size( ave(ii).v, 4 ) |
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is = 1 + (kk-1)*nsiz(2); |
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ie = is + nsiz(2) - 1; |
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by6u(is:ie,:) = squeeze( ave(ii ).v(iz,:,:,kk) )'; |
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by6v(is:ie,:) = squeeze( ave(ii+1).v(iz,:,:,kk) )'; |
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end |
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% xi=-179:2:180; yi=-89:2:90; |
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xi = og.lon; |
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ind = find(xi > 179.5); |
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xi(ind) = xi(ind) - 360; |
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yi = og.lat; |
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[ul,vl] = uvacube2latlon(aa_regrid.x,aa_regrid.y, ... |
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by6u,by6v, xi,yi); |
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ave(ii ).r(iz,:,:) = ul'; |
| 317 |
ave(ii+1).r(iz,:,:) = vl'; |
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|
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if flags.debug_lev > 0 |
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figure(1), subplot(1,1,1) |
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subplot(2,1,1), surf(ul'), axis equal, view(2), shading flat |
| 322 |
subplot(2,1,2), surf(vl'), axis equal, view(2), shading flat |
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end |
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|
| 325 |
elseif ( vars{ave(ii).ivar}{6} == 'v' ) |
| 326 |
|
| 327 |
% if iz == 1 |
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% disp(sprintf( ' %s was computed along with %s', ... |
| 329 |
% vars{ave(ii).ivar}{2}, vars{ave(ii-1).ivar}{2} )); |
| 330 |
% end |
| 331 |
|
| 332 |
elseif ( vars{ave(ii).ivar}{6} == 'u' ) |
| 333 |
|
| 334 |
disp('Error: please specify regrid type for vectors'); |
| 335 |
disp(' using "flags.regrid_type_for_vec"'); |
| 336 |
|
| 337 |
end |
| 338 |
else |
| 339 |
% conservative for scalars |
| 340 |
for jj = 1:length(rgrid.con.src_address) |
| 341 |
lld(rgrid.con.dst_address(jj)) = ... |
| 342 |
lld(rgrid.con.dst_address(jj)) ... |
| 343 |
+ ( dcp(rgrid.con.src_address(jj)) ... |
| 344 |
* rgrid.con.remap_matrix(jj,1) ); |
| 345 |
end |
| 346 |
ave(ii).r(iz,:,:) = reshape(lld',og.nlat,og.nlon); |
| 347 |
end |
| 348 |
|
| 349 |
end |
| 350 |
|
| 351 |
end |
| 352 |
|
| 353 |
|
| 354 |
% write the regridded fields to netCDF |
| 355 |
tcurr = 0.25 * it; |
| 356 |
nc_outf{'time'}(it-it0) = tcurr; |
| 357 |
nc_outf{'time_bnds'}(it-it0,:) = [ tcurr tcurr+0.25 ]; |
| 358 |
for ii = 1:length(ave) |
| 359 |
|
| 360 |
iv = ave(ii).ivar; |
| 361 |
nc_outf{ vars{iv}{2} }(it-it0,:,:) = ave(ii).r(1,:,:); |
| 362 |
|
| 363 |
end |
| 364 |
|
| 365 |
|
| 366 |
end |
| 367 |
clear tmp |
| 368 |
|
| 369 |
% close the input files |
| 370 |
for ifacet = 1:nfacets |
| 371 |
nc = close( ncl{ifacet} ); |
| 372 |
end |
| 373 |
clear ncl; |
| 374 |
|
| 375 |
% close output file |
| 376 |
nc_outf = close(nc_outf); |
| 377 |
|
| 378 |
|
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