Re: cannot convert hdf file

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Mon Sep 20 2010 - 15:07:50 MDT

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.

On 9/14/10 7:23 AM, SMITH, JONATHAN WYNN. (GSFC-6133) wrote:
> Hello, thanks for your help
>
> I sent the file MOPCH-20060520-L1V3.34.2.hdf via ftp. I am trying to open it via ncl_convert2nc
>
> I am using NCL v5.1.0
>
> System: Linux 138.238.124.25 2.6.18-128.el5 #1 SMP Wed Dec 17 11:41:38 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
>
> Jonathan
>
> Jonathan Wynn Smith
> Student Trainee
> jonathan.smith@nasa.gov
> NASA/Goddard Space Flight Center
> Code 613.3 - Atmospheric Chemistry and Dynamics Branch
> Greenbelt, MD 20771
> 301-614-5956
>
> Doctoral Candidate
> jw_smith@howard.edu
> Howard University Program in Atmospheric Sciences
> Washington, DC 20059
>
> ________________________________________
> From: shea@ucar.edu [shea@ucar.edu]
> Sent: Monday, September 13, 2010 8:39 PM
> To: SMITH, JONATHAN WYNN. (GSFC-6133)
> Cc: ncl-talk@ucar.edu
> Subject: Re: cannot convert hdf file
>
> No file is needed.
>
> To me, it looks like a file name or path is not correct.
>
> If neither is true, you can send the file
>
> ftp ftp.cgd.ucar.edu
> anonymous
> Use your email address for the password
> cd incoming
> put ...
>
> quit
>
> Send us an email with the following information:
>
> * The names of the files after you have successfully completed the
> transfer.
> We cannot look at the ftp/incoming directory for security reasons.
> * The version of NCL you are running (ncl -V).
> * The type of system you are on (uname -a).
>
>> 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
>>
>> _______________________________________________
>> ncl-talk mailing list
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>>
>
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Received on Mon Sep 20 15:07:55 2010

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