Re: [ferret_users] Appending time steps to netcdf file

[guimond@xxxxxxxxxxxxx]

Hello Ferreters,
 Jimmy C from Iowa State University helped me untangle my problem.  
The answer is to use a descriptor file that basically concatenates a 
series of time steps into one file from multiple netCDF files.  See the 
documentation under "descriptor file" and then sub-heading "syntax" 
will get you going with examples.  My descriptor file worked well and I 
was able to then save this merged data to a new netcdf file for further 
work.

Thanks Much,
Steve Guimond
FSU

Quoting jimmyc@iastate.edu:

> Perhaps what you want to do is to make a descriptor file.
> The descriptor links the three files together without having to 
> append them into 1 file.
> I attached an example:
>
> jimmyc
>
> On Wed, 6 Sep 2006, guimond@coaps.fsu.edu wrote:
>
> > Hi Jimmy,
> > I am combining three files with the same variables, but each files 
> > comprises three "sections" of my time series.  So, file one goes 
> > from 1:27, file two goes from 28:67 and file three goes from 68:74.  
> > Each file has a time axis with dates and not just time steps.  I 
> > have had success combining time steps when reading in multiple 
> > files, but not for three netcdf files.  Steve
> >
> >
> > Quoting jimmyc@iastate.edu:
> >
> > > Hey Steve-
> > >
> > > My experience with the netcdf append is that the variable you 
> > > create should have all the times you wish to have in the file. 
> > > Combining 3 files may require the use of the netcdf utilities ncat 
> > > or something. So you just use that utility to cat together the 
> > > files.
> > >
> > > Hard to say which is best. What are doing? Combining 3 files with 
> > > the same variables? or 3 files with lots of variables?
> > > jimmyc
> > >
> > > --
> > > James Correia Jr.
> > > Ph.D. Candidate in Agricultural Meteorology
> > > Former President: ISU Graduate Meteorology Club
> > > Dept. of Agronomy, Iowa State University
> > > *********************************************
> > > Email: jimmyc@iastate.edu
> > > Phone: 515-294-9870
> > > Web: http://bruce.agron.iastate.edu/jimmyc/
> > > ISU GMC: http://www.stuorg.iastate.edu/gmc/
> > > *********************************************
> > > "There is a difference between knowing the path and walking the path"
> > > -"Morpheus"
> > >
> > > "Wisdom. Strength. Courage. Generosity. Each of us are born with one of
> > > these. We must find the other three inside of us."
> > > from "Into the West"
> >
> >
> > ----------------------------------------------------------------
> --
> James Correia Jr.
> Ph.D. Candidate in Agricultural Meteorology
> Former President: ISU Graduate Meteorology Club
> Dept. of Agronomy, Iowa State University
> *********************************************
> Email: jimmyc@iastate.edu
> Phone: 515-294-9870
> Web: http://bruce.agron.iastate.edu/jimmyc/
> ISU GMC: http://www.stuorg.iastate.edu/gmc/
> *********************************************
> "There is a difference between knowing the path and walking the path"
> -"Morpheus"
>
> "Wisdom. Strength. Courage. Generosity. Each of us are born with one of
> these. We must find the other three inside of us."
> from "Into the West"


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