Re: A question while creating large NetCDF files

Each variable is 385.7MB. That is not a problem.
However, you have 6 variables of that size. The total
is greater than 2GB. I speculate that the netCDF library
has not been created with "large file support" (LFS).
This allows netCDF files to exceed 2GB.

Good Luck

陈名 wrote:
> Dear NCL users:
>
> I was trying to create a large NC file- the desired file header is as
> following:
>
> filename: 2008-01
> path: 2008-01.nc <http://2008-01.nc/>
> file global attributes:
> creation_date : Mon Nov 16 14:26:18 CST 2009
> description : 2008 half hourly Met Data
> dimensions:
> time = 1488
> lat = 180
> lon = 360
> scalar = 1
> variables:
> float TBOT ( time, lat, lon )
>
> float WIND ( time, lat, lon )
>
> float QBOT ( time, lat, lon )
>
> float PRECTmms ( time, lat, lon )
>
> float FSDS ( time, lat, lon )
>
> float PSRT ( time, lat, lon )
>
> float time ( time )
>
> float LATIXY ( lat, lon )
>
> float LONGXY ( lat, lon )
>
> float EDGEN ( scalar )
>
> float EDGEE ( scalar )
>
> float EDGES ( scalar )
>
> float EDGEW ( scalar )
>
>
> But I keep receiving this error message:
>
> ncendef: ncid 1: NetCDF: One or more variable sizes violate format
> constraints
> ncclose: ncid 1: NetCDF: One or more variable sizes violate format
> constraints
>
> I searched on NCL website and thought it could be a large file problem,
> so I tried to reduce the time dimension to be 1000, and it go through
> well. However, I still need the large file and I don't know how to avoid
> this error. Could someone give me a hint? The attachment is the ncl
> script I used. Thanks a lot!
>
> Ming
>
>
>
> --
> Department of Soil, Water and Climate
> 439 Borlaug Hall 1991 Upper Buford Cir.
> St. Paul 55108
> MN USA
>
>
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Received on Mon Nov 16 21:55:44 2009