Re: how to append data into one NetCDF file

Dear Xuquang

There are better tools than ncl out there to do what you want to do.
The package nco (http://nco.sourceforge.net/) is designed to operate on netcdf files with a simple command line.

Regards,
Andrea

Andrea Hahmann, PhD.
Senior Scientist
Phone direct +45 4677 5471
andrea.n.hahmann_at_risoe.dk
 
Wind Energy Department
Risø National Laboratory for Sustainable Energy
Technical University of Denmark
Building 118, P.O. Box 49
DK-4000 Roskilde, Denmark
Tel +45 4677 4677
Fax +45 4677 5083

-----Original Message-----
From: ncl-talk-bounces_at_ucar.edu [mailto:ncl-talk-bounces_at_ucar.edu] On Behalf Of Xuguang Sun
Sent: Saturday, April 18, 2009 5:45 PM
To: ncl-talk_at_ucar.edu
Subject: [ncl-talk] how to append data into one NetCDF file


Dear everyone,

I've a list of NetCDF format files, like,

1948-01.nc
1948-02.nc
1948-03.nc
...

and I'd like to combine these data files into one NetCDF format file. I do know that I could solve this problem by using

   fns = systemfunc("ls 19??-??.nc")
   in = addfiles(fns,"r") ; open netcdf file
   ListSetType(in,"cat")
   ...

However, if I'd like to open one NetCDF data file, and write it into one file, and then open another NetCDF data file, and write it into the same file, ..., all the above processes are repeated until all the nc files are opened and the data are writted into the same data file. I checked that the addfile function only has three options to open one file, "r", "w", "c", and there is no append option, so I'm wondering how to solve this problem by the above method. And at the same time, is there anybody like to explain the usage of "w" option? Thanks in advance.


SUN Xuguang

School of Atmospheric Sciences, Nanjing University
22 Hankou Road, Nanjing 210093
China
Tel: +86-025-83597203 (O)
Email: sunxg007_at_yahoo.com.cn


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Received on Sat Apr 18 2009 - 10:28:40 MDT