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gforget |
1.3 |
function [fld]=read_nctiles(fileName,fldName,varargin); |
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gforget |
1.1 |
%usage: fld=read_nctiles(fileName); reads full field using fileName as field name |
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%usage: fld=read_nctiles(fileName,fldName); reads full field (all depths, all times) |
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%usage: fld=read_nctiles(fileName,fldName,tt); reads 3D or 2D field, at time index tt (all depths) |
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%usage: fld=read_nctiles(fileName,fldName,tt,kk); reads 3D field, at depth index kk, at time index tt |
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gcmfaces_global; |
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if nargin==1; |
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tmp1=['/' fileName]; |
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tmp2=strfind(tmp1,'/'); |
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fldName=tmp1(tmp2(end)+1:end); |
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end; |
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if nargin>2; tt=varargin{1}; else; tt=[]; end; |
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if nargin>3; kk=varargin{2}; else; kk=[]; end; |
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gforget |
1.5 |
%A) determine map of tile indices (if not already done) |
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global nctiles; |
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test1=isempty(nctiles); |
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test2=0; |
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if ~test1; |
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tmp1=dir([fileName '*']); |
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test2=(length(tmp1)~=length(nctiles.no)); |
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end; |
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if test1|test2; |
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%build map of tile indices |
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if (length(dir([fileName '*']))==mygrid.nFaces); |
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nctiles.map=NaN*mygrid.XC; |
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for ff=1:mygrid.nFaces; nctiles.map{ff}(:)=ff; end; |
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else; |
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fileIn=sprintf('%s.%04d.nc',fileName,1); |
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nc=netcdf.open(fileIn,0); |
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vv = netcdf.inqVarID(nc,fldName); |
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[varname,xtype,dimids,natts]=netcdf.inqVar(nc,vv); |
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tileSize=zeros(1,2); |
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[tmp,tileSize(1)] = netcdf.inqDim(nc,dimids(1)); |
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[tmp,tileSize(2)] = netcdf.inqDim(nc,dimids(2)); |
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netcdf.close(nc); |
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nctiles.map=gcmfaces_loc_tile(tileSize(1),tileSize(2)); |
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end; |
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%determine tile list |
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nctiles.no=unique(convert2vector(nctiles.map)); |
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nctiles.no=nctiles.no(~isnan(nctiles.no)); |
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%determine location of each tile |
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for ff=1:length(nctiles.no); |
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for gg=1:mygrid.nFaces; |
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[tmpi,tmpj]=find(nctiles.map{gg}==ff); |
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if ~isempty(tmpi); |
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nctiles.f{ff}=gg; |
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nctiles.i{ff}=[min(tmpi(:)):max(tmpi(:))]; |
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nctiles.j{ff}=[min(tmpj(:)):max(tmpj(:))]; |
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end; |
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end; |
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end; |
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gforget |
1.2 |
end; |
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gforget |
1.1 |
|
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gforget |
1.5 |
%B) the file read operation itself |
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gforget |
1.1 |
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gforget |
1.5 |
for ff=1:length(nctiles.no); |
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gforget |
1.2 |
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gforget |
1.5 |
%read one tile |
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gforget |
1.2 |
fileIn=sprintf('%s.%04d.nc',fileName,ff); |
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gforget |
1.1 |
nc=netcdf.open(fileIn,0); |
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gforget |
1.5 |
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gforget |
1.1 |
vv = netcdf.inqVarID(nc,fldName); |
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[varname,xtype,dimids,natts]=netcdf.inqVar(nc,vv); |
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gforget |
1.2 |
[dimname,siz(1)] = netcdf.inqDim(nc,dimids(1)); |
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[dimname,siz(2)] = netcdf.inqDim(nc,dimids(2)); |
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siz=[siz length(mygrid.RC)]; |
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gforget |
1.1 |
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if ~isempty(tt); |
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gforget |
1.4 |
t0=tt(1)-1; |
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nt=tt(end)-tt(1)+1; |
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gforget |
1.1 |
if length(dimids)==3; |
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gforget |
1.4 |
start=[0 0 t0]; |
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count=[siz(1) siz(2) nt]; |
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gforget |
1.1 |
elseif isempty(kk); |
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gforget |
1.4 |
start=[0 0 0 t0]; |
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count=[siz(1) siz(2) siz(3) nt]; |
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gforget |
1.1 |
else; |
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gforget |
1.4 |
start=[0 0 kk-1 t0]; |
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count=[siz(1) siz(2) 1 nt]; |
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gforget |
1.1 |
end; |
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gforget |
1.2 |
fldTile=netcdf.getVar(nc,vv,start,count); |
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gforget |
1.1 |
else; |
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gforget |
1.2 |
fldTile=netcdf.getVar(nc,vv); |
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end; |
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gforget |
1.5 |
netcdf.close(nc); |
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%initialize fld (full gcmfaces object) |
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gforget |
1.2 |
if ff==1; |
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siz=[1 1 size(fldTile,3) size(fldTile,4)]; |
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fld=NaN*repmat(mygrid.XC,siz); |
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end; |
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101 |
gforget |
1.5 |
%place tile in fld |
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fld{nctiles.f{ff}}(nctiles.i{ff},nctiles.j{ff},:,:)=fldTile; |
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gforget |
1.1 |
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end;%for ff=1:mygrid.nFaces; |
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