Re: cannot convert hdf file

The reason that NCL cannot read anything useful in this file is that
it contains no SDS (scientific datasets). All the data in this file
is stored in Vdata datasets. These are spreadsheet-like entities with
records consisting of multiple named fields where each field can have
its own type and number of elements. Without significant new
development of the NCL interface to HDF4, NCL has no capability to
read files like this one. In other words, this is not a bug at least
with respect to NCL itself.

However, the error message emitted by ncl_convert2nc is confusing to
say the least. Since ncl_filedump is able to print out the global
attributes, it seems that ncl_convert2nc should at least put out a
file with the attributes, along with a message that no readable
variables could be found in the file. I will file a ticket for this
problem.
  -dave

On Sep 13, 2010, at 2:49 PM, SMITH, JONATHAN WYNN. (GSFC-6133) wrote:

> Hello
> I get the following error when using ncl_convert2nc:
> fatal:_NclIGetFileVarNames: file does not exist
> fatal:Execute: Error occurred at or near line 200 in file /tmp/
> tmp28869.ncl
>
> Is there a file that is needed in the netcdf directory?
>
> Jonathan
> Jonathan Wynn Smith
> Student Trainee, WRF-Chem Modeling and Long-range transport
> jonathan.smith@nasa.gov
> NASA/Goddard Space Flight Center
> Code 613.3/Atmospheric Chemistry and Dynamics Branch
> Greenbelt, MD
> 301-614-5956
>
> Doctoral Candidate
> jonathan.smith@bison.howard.edu
> Howard University Program in Atmospheric Sciences
> Washington, DC
>
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Received on Mon Sep 20 15:38:35 2010