Creating a netcdf File in Matlab 2010b
2 views (last 30 days)
Show older comments
Hi, I need to create a netCDF file with three variables (Latitude, longitude and r values) that I have generated from a different Matlab program. Can anyone suggest a method that will work in the the newest version of Matlab (2010b)?
Thank you Atreyee
0 Comments
Answers (3)
Dave Correa
on 10 Jul 2011
Hello;
Here an example.
I hope this is of some help.
Regards
Dave Correa
E-mail:correa.dave30@gmail.com
close all, clear all, clc
yearini=1960;
yearfin=1970;
%%--------------------
nt=144;
nx=1440;
ny=720;
lon=linspace(-180,180,nx);
lat=linspace(90,-90,ny);
time=1:nt;
[mlat,mlon]=meshgrid(lat,lon);
disp('Creando file Netcdf...')
filenc=['Data.nc'];
ncid = netcdf.create(filenc,'NC_WRITE');
% Crear dimensiones
dimid_lon = netcdf.defDim(ncid,'longitude',nx);
dimid_lat = netcdf.defDim(ncid,'latitude',ny);
dimid_time = netcdf.defDim(ncid,'time',nt);
% Crear variables y atributos
varid_lon = netcdf.defVar(ncid,'longitude','double',dimid_lon);
netcdf.putAtt(ncid,varid_lon,'long_name','Longitude')
netcdf.putAtt(ncid,varid_lon,'units','degrees_east')
%
varid_lat = netcdf.defVar(ncid,'latitude','double',dimid_lat);
netcdf.putAtt(ncid,varid_lat,'long_name','Latitude')
netcdf.putAtt(ncid,varid_lat,'units','degrees_north')
%
varid_time = netcdf.defVar(ncid,'time','double',dimid_time);
netcdf.putAtt(ncid,varid_time,'long_name','Time')
netcdf.putAtt(ncid,varid_time,'units','Months since 1960-01-01 00:00:00')
%
varid_prec = netcdf.defVar(ncid,'prec','double',[dimid_lon,dimid_lat,dimid_time]);
netcdf.putAtt(ncid,varid_prec,'long_name','Variable')
netcdf.putAtt(ncid,varid_prec,'units','mm')
netcdf.putAtt(ncid,varid_prec,'missing_value',-9999)
netcdf.endDef(ncid)
% % % Agregar datos de coordenadas
netcdf.putVar(ncid,varid_lon,lon);
netcdf.putVar(ncid,varid_lat,lat);
netcdf.putVar(ncid,varid_time,time);
m=1;
for year=yearini:yearfin
for mes=1:12
netcdf.putVar(ncid,varid_prec,[0 0 m-1],[nx ny 1],tmp);
m=m+1;
end
end
netcdf.close(ncid)
0 Comments
Carlos Batista
on 29 Oct 2014
Anyone know how to declare the variable tmp in David's script !?
0 Comments
See Also
Categories
Find more on NetCDF in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!