Re: QuickScat HDF Files

From: Adam Phillips <asphilli_at_nyahnyahspammersnyahnyah>
Date: Tue, 04 Apr 2006 11:08:34 -0600

Hi Scott/Rick,

FYI: I just read in the file using version v4.2.0.a032 (After gunzip'ing
the file.) and I had no issues with it...
Adam

Rick Grubin wrote:
> Hi Scott,
>
>> I am attempting to read in a QuickScat HDF file (version 4.1r3).
>> According to the NCL documentation, NCL can read in HDF files of this
>> type. Here is a link to the HDF file:
>>
>> ftp://podaac.jpl.nasa.gov/pub/ocean_wind/quikscat/L3/data/2003/
>> QS_XWGRD3_2003120.20031231631.Z
>
>
> I just downloaded this file, uncompressed it, and renamed it to have a
> ".hdf" extension.
>
>> However, I am getting the following error:
>>
>> NCAR Command Language Version 4.2.0.a032
>> The use of this software is governed by a License Agreement.
>> See http://www.ncl.ucar.edu/ for more details.
>> fatal:An internal error has occurred. The file format requested does
>> not appear to be supported, could not open
>> (QS_XWGRD3_2003120.20031231631.hdf)
>
>
> I'm using NCL v4.2.0.a033 (the most recent version available for release):
>
> % ncl -V
> 4.2.0.a033
>
> and I am able to read the file just fine:
>
> % ncl
> Copyright (C) 1995-2006 - All Rights Reserved
> University Corporation for Atmospheric Research
> NCAR Command Language Version 4.2.0.a033
> The use of this software is governed by a License Agreement.
> See http://www.ncl.ucar.edu/ for more details.
>
> ncl 0>
> f=addfile("/Users/grubin/data/QS_XWGRD3_2003120.20031231631.hdf", "r")
> ncl 1> print(f)
>
> Variable: f (file variable)
>
> filename: QS_XWGRD3_2003120.20031231631
> path: /Users/grubin/data/QS_XWGRD3_2003120.20031231631.hdf
> file global attributes:
> LongName : char
> 1
> QuikSCAT Level 3 Ocean Wind Vectors in 25km grid
> [...]
>
> I don't have v4.2.0.a032 of NCL hanging around but could build a
> version and test if that'd help. I am somewhat surprised at the error
> you're seeing, as it appears you're doing everything correctly. I
> should ask, to be complete: did you uncompress the file before renaming
> it?
>
> Another suggestion would be for you to upgrade your NCL version and try
> again, if that's an option at your end. Please let us know of the
> results, thanks.
>
> -Rick.
> ----
> Rick Grubin NCAR/CISL/SCD/VETS
> Visualization + Enabling Technologies
> grubin_at_ucar.edu 303.497.1832
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk_at_ucar.edu
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk

-- 
--------------------------------------------------------------
Adam Phillips			             asphilli_at_ucar.edu
National Center for Atmospheric Research   tel: (303) 497-1726
ESSL/CGD/CAS                               fax: (303) 497-1333
P.O. Box 3000				
Boulder, CO 80307-3000	  http://www.cgd.ucar.edu/cas/asphilli
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Received on Tue Apr 04 2006 - 11:08:34 MDT

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