How to run netcdf.defVarFill for a variable defined as 'float'

Question

Rafael 2012-8-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/45901-how-to-run-netcdf-defvarfill-for-a-variable-defined-as-float

Hi,

I am using Matlab 7.14.0.739 (R2012a) and I need to create forcing data for my model in NetCDF that should look something like this:

 variables:
 float T2D(Time, south_north, west_east) ;
           T2D:layer_top = 0.f ;
           T2D:layer_bottom = 0.1f ;
           T2D:units = "K" ;
           T2D:_FillValue = -1.e+36f ;

The NetCDF file is created like this:

ncid = netcdf.create(filenc,'NETCDF4');

... and this is how I am currently writing my Matlab script:

 % Surface temperature
 varid_t2d =  netcdf.defVar(ncid,'T2D','float',dimid_west_east,dimid_south_north,dimid_Time]);
 netcdf.putAtt(ncid,varid_t2d,'layer_top',0);
 netcdf.putAtt(ncid,varid_t2d,'layer_bottom',0.1);
 netcdf.putAtt(ncid,varid_t2d,'units','K');
 netcdf.defVarFill(ncid,varid_t2d,false,-1.e+36);

This is the error message I get when running it:

 Error using netcdflib
 The fill value datatype class 'double' does not match the netCDF datatype for T2D.
 Error in netcdf.defVarFill (line 32)
 netcdflib('defVarFill',ncid,varid,noFillMode,fillvalue);
 Error in noah2d_text_to_netcdf (line 164)
       netcdf.defVarFill(ncid,varid_t2d,false,-1.e+36);