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Re: 19990422: Ascii to netCDF

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  • Subject: Re: 19990422: Ascii to netCDF
  • Date: Thu, 22 Apr 1999 16:57:50 -0600
>To: address@hidden
>From: "Marc V. Gorenstein" <address@hidden>
>Subject: ASCII to AIA
>Organization: .
>Keywords: 199904222041.OAA26052

Hi Marc,

> Is there a utility that will take a column of data in ASCII format and
> translate to netCDF or AIA format?

Yes, there's the tbl2cdf program from our "User Contributed netCDF
Software" page at
http://www.unidata.ucar.edu/packages/netcdf/contrib.html

  tbl2cdf.c 
      Chuck Denham's program to convert a flat ASCII table to a netCDF
      file. The program scans a flat ASCII table for the name and most
      general data type of each column. It then creates and populates
      a netCDF file with the data.

You can click on the link on that page or get the source from
ftp://ftp.unidata.ucar.edu/pub/netcdf/contrib/tbl2cdf.c

Using "ncgen" with the "-b" option is another pretty quick way to
generate a netCDF file, say data.nc, from ASCII data, by editing a CDL
file, say data.cdl, that contains the ASCII data delimited by commas
and using that as input to ncgen

   $ ncgen -b -o data.nc data.cdl

I've appended a small example of a CDL file that shows what's needed
...

--Russ

_____________________________________________________________________

Russ Rew                                         UCAR Unidata Program
address@hidden                     http://www.unidata.ucar.edu

netcdf foo {
dimensions:
  nx=10;
variables:
  float var(nx);
data:
  var =
    0,
    10,
    20,
    30,
    40,
    50,
    60,
    70,
    80,
    90;
}