Yes, I wrote ucnids back in the late 90s. The original NIDS products on
NOAAPort were zlib compressed. This was the entire product including the
WMO header. The ucnids program has made the rounds. I wrote the zlib
decompression directly into WXP so it didn't need decompression but there
were several software packages that did. The newer products bzlip2
compress only the radial and rastor sections of the NIDS product. The
header is not compressed. The ucnids program doesn't decompress the bzip2
compressed data. It seems like most software packages can handle the bzip2
compression so there isn't a need for decompression... or is there?
Dan.
On Sat, May 21, 2016 at 11:27 PM, Pete Pokrandt <poker@xxxxxxxxxxxx> wrote:
> Wow, that is a blast from the past!
>
>
> I have a c version of a nids decompressor called ucnids - I believe that
> Dan Vietor may have written that. I still use it for some of my decoding. I
> can provide the source code for that if anyone would like.
>
>
> Pete
>
>
>
>
> <http://www.weather.com/tv/shows/wx-geeks/video/the-incredible-shrinking-cold-pool>
> --
> Pete Pokrandt - Systems Programmer
> UW-Madison Dept of Atmospheric and Oceanic Sciences
> 608-262-3086 - poker@xxxxxxxxxxxx
>
>
>
> ------------------------------
> *From:* ldm-users-bounces@xxxxxxxxxxxxxxxx <
> ldm-users-bounces@xxxxxxxxxxxxxxxx> on behalf of Stonie Cooper <
> stonewall@xxxxxxxxxxxxx>
> *Sent:* Saturday, May 21, 2016 9:44 PM
> *To:* Gerry Creager - NOAA Affiliate; Arthur A Person
> *Cc:* ldm-users@xxxxxxxxxxxxxxxx
>
> *Subject:* Re: [ldm-users] NOAAPort NIDS versus
> ftp://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/ files
>
> Unbelievable - I found it:
>
> https://www.unidata.ucar.edu/support/help/MailArchives/idd/msg01777.html
>
> 2000 - not late '90's. And it was Pete, not Mike, that wrote it.
>
> Stonie
>
> On May 21, 2016 9:37:57 PM CDT, Stonie Cooper <stonewall@xxxxxxxxxxxxx>
> wrote:
>>
>> Art - Mike Dross had a perl script in the late '90's - I'll see if I can
>> find it via Google.
>>
>> Stonie
>>
>> On May 21, 2016 9:28:31 PM CDT, Gerry Creager - NOAA Affiliate <
>> gerry.creager@xxxxxxxx> wrote:
>>>
>>> It's libs, so compress -d should work... If you're using pyART, I
>>> believe there's a libz toll in python, but after today's packing session
>>> for the great house movezi can't, for the life of me, remember it.
>>>
>>> Gerry
>>>
>>> On Friday, May 20, 2016, Arthur A Person <aap1@xxxxxxx> wrote:
>>>
>>>> Thanks Stonie. So, the error must be related to a failed effort to
>>>> decompress
>>>> the NOAAPort version of the file... is anyone aware of a standalone
>>>> decompressor
>>>> that could be used to convert the NOAAPort NIDS compressed version into
>>>> an
>>>> uncompressed version?
>>>>
>>>> Art
>>>>
>>>> ------------------------------
>>>>
>>>> *From: *"Stonie Cooper" <stonewall@xxxxxxxxxxxxx>
>>>> *To: *"Arthur A Person" <aap1@xxxxxxx>, ldm-users@xxxxxxxxxxxxxxxx
>>>> *Sent: *Friday, May 20, 2016 2:54:38 PM
>>>> *Subject: *Re: [ldm-users] NOAAPort NIDS versus
>>>> ftp://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/ files
>>>>
>>>> The data on NOAAPort is compressed frame by frame via libz; once you
>>>> uncompress, the data is identical.
>>>>
>>>> Stonie
>>>>
>>>> On May 20, 2016 1:46:08 PM CDT, Arthur A Person <aap1@xxxxxxx> wrote:
>>>>>
>>>>> Hi...
>>>>>
>>>>> Anyone know if the NOAAPort NIDS files are the same data as reside in
>>>>> ftp://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/?
>>>>> We are able to read the tgftp data using pyART but when we try reading
>>>>> the same NOAAPort NIDS data (e.g. differential reflectivity N0X),
>>>>> we get an error "NotImplementedError: Level3 product with code 3338 is
>>>>> not supported". Any ideas on what this error might mean?
>>>>>
>>>>> Thanks... Art
>>>>>
>>>>> --
>>>>> Arthur A. Person
>>>>> Research Assistant, System Administrator
>>>>> Penn State Department of Meteorology
>>>>> email: aap1@xxxxxxx, phone: 814-863-1! 563
>>>>>
>>>>> ------------------------------
>>>>>
>>>>> NOTE: All exchanges posted to Unidata maintained email lists are
>>>>> recorded in the Unidata inquiry tracking system and made publicly
>>>>> available through the web. Users who post to any of the lists we
>>>>> maintain are reminded to remove any personal information that they
>>>>> do not want to be made public.
>>>>>
>>>>>
>>>>> ldm-users mailing list
>>>>> ldm-users@xxxxxxxxxxxxxxxx
>>>>> For list information or to unsubscribe, visit:
>>>>> http://www.unidata.ucar.edu/mailing_lists/
>>>>>
>>>>>
>>>> --
>>>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>>>
>>>>
>>>> --
>>>> Arthur A. Person
>>>> Research Assistant, System Administrator
>>>> Penn State Department of Meteorology
>>>> email: aap1@xxxxxxx, phone: 814-863-1563
>>>>
>>>
>>>
>>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
> _______________________________________________
> NOTE: All exchanges posted to Unidata maintained email lists are
> recorded in the Unidata inquiry tracking system and made publicly
> available through the web. Users who post to any of the lists we
> maintain are reminded to remove any personal information that they
> do not want to be made public.
>
>
> ldm-users mailing list
> ldm-users@xxxxxxxxxxxxxxxx
> For list information or to unsubscribe, visit:
> http://www.unidata.ucar.edu/mailing_lists/
>
--
*Dan Vietor*
*Senior Research Meteorologist*
CIRA, Colorado State Univ
Aviation Weather Center
Kansas City, MO
816.584.7211
