Hello, Ethan and Rick:
Thank you both very much for your kind information. I appreciate very much.
have a good day.
hui
On Tue, 16 Dec 2003, Ethan Alpert wrote:
>
> You must add ".grb" to your file name. Because formats like grib do not
> support a magic number there is no way for NCL to know what type of file you
> are opening. You must tell it what file type it is by adding the appropriate
> extension (i.e. .grb, .nc, .ccm, .hdf) to the filename parameter of the
> addfile function:
>
> thefile = addfile("/data/pgb.f0002073012.grb","r")
>
> -e
>
> > hi, Sylvia:
> >
> > I am trying to do as you said. I used addfiles and then
> > ListSetType to combine the GRIB files, but got an message related to
> ListSetType:
> >
> > fatal:An internal error has occurred. The file format requested does not
> > appear to be supported, could not open (/data/pgb.f0002073012)
> >
> > what is your suggestions about this? Thanks!!
> >
> > hui
> >
> >
> > On Fri, 12 Dec 2003, Sylvia Murphy wrote:
> >
> > > >
> > > h,
> > >
> > > there are no grib equivilant of the netCDF operators. you will have to
> use
> > > NCL for that.
> > > read in all the files using addfiles and then use dim_avg.
> > >
> > > http://www.cgd.ucar.edu/csm/support/FH/addfiles.shtml
> > >
> > > remember to reorder your variable to put time as the rightmost
> dimension.
> > > you should also use dim_avg_Wrap located in contributed.ncl so that your
> > > meta data is preserved.
> > >
> > > sm
> > >
> > > Hi, Sylvia:
> > > >
> > > > I will need also to do similar average of the daily NCEP reanalysis
> > > > GRIB files. Is there any similar Unix commands available to do
> > > > the average?
> > > >
> > > > Thank again!
> > > >
> > > > hui
> >
> >
> > _______________________________________________
> > ncl-talk mailing list
> > ncl-talk AT ucar.edu
> > http://mailman.ucar.edu/mailman/listinfo/ncl-talk
> >
>
>
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