[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: WSI Radar "Mosaics"

On Sat, 20 Apr 2002, David Ahijevych wrote:

> Robb,
> 
> I got the files you prepared on motherlode, no problem.  
> But I probably wasn't clear on the type of radar data I needed since my
> decoder doesn't work on these files.  I know WSI has different products in
> the LDM stream, and I have a feeling that these may be a type I
> don't use.  
> 
> I need the "NOWrad Master Sector" . 
> 
> An octal dump reveals a different description for the motherlode files.
> 
> 0000000  \0   ð  \t 025   N   A               2   2   :   3   0       U
> 0000020   S   R   A   D   H   D             025  \0   ð  \n   4   8   0
> 0000040       7   6   8  \0   ð 003   U   S   R   A   D       H   i   g
> 0000060   h       D   e   f   .       S   e   c   t   o   r   2   2   :
> 0000100   3   0       0   8   -   A   p   r   -   0   2                
> 
> 
> I see "USRAD High Def. Sector" in the character dump.  Is it possible that
> these are a different type than the NOWrad ones I need?  Do you have a
> different stream of the "NOWrad" variety?
> 
> Dave

Dave,

The NOW are under the 8km and 2km dir structure, the MASTER ones are under
the 2km dir, I gave you the 8km ones.  I'll populate the ftp upload dir
with the files that are available.

Robb...

0000000  \0 360  \t 025   N   A               2   3   :   4   5       N
0000020   O   W   R   A   D   H   D         025  \0 360  \n   1   8   3
0000040   7       3   6   6   1  \0 360 003   N   O   W   r   a   d    
0000060   M   a   s   t   e   r       S   e   c   t   o   r   2   3   :
0000100   4   5       1   6   -   A   p   r   -   0   2                
0000120                                   
> 
> 
> David Ahijevych
> Mesoscale and Microscale Meteorology Division
> National Center for Atmospheric Research
> (303)497-8922 (office)
> 
> On Fri, 19 Apr 2002, Robb Kambic wrote:
> 
> > Dave,
> > 
> > I put the data in a ftp on motherlode, let me know when you got it.
> > I was trying to put together a getdata cgi-bin script to have your get the
> > data but all the data is outside the ftp tree.  So I put the data in the
> > ftp structure in a dir called upload.  To access:
> > 
> > % ftp motherlode.ucar.edu
> > user unidata pw lotzodata
> > % cd upload
> > % mget *
> > 
> > This is all the data that was available fro times specified.
> > A
> > Hope this helps,
> > Robb...
> > 
> > 
> > 
> > On Wed, 17 Apr 2002, David Ahijevych wrote:
> > 
> > > Robb,  Here's the specific 2002 dates/times for the days you have:
> > > 
> > > 20020404 0015, 2300, 2315, 2330, 2345
> > > 20020408 2045, 2215, 2230, 2245 
> > > 20020413 1945
> > > 20020416 1815, 1830, 1845, 1900 
> > > 
> > > Thanks for your help,
> > > dave
> > > 
> > > David Ahijevych
> > > Mesoscale and Microscale Meteorology Division
> > > National Center for Atmospheric Research
> > > (303)497-8922 (office)
> > > 
> > > On Wed, 17 Apr 2002, Robb Kambic wrote:
> > > 
> > > > On Wed, 17 Apr 2002, David Ahijevych wrote:
> > > > 
> > > > > Robb,
> > > > > 
> > > > > Any chance of getting 1815-1900Z wsi NOWRAD MASTER15 products from
> > > > > 20020416? We didn't get them through the LDM.  
> > > > > 
> > > > > There seems to be an increase in missing files the last couple weeks.
> > > > > March had virtually no missing files (96 per day), but April got 
> > > > > worse....
> > > > 
> > > > David,
> > > > 
> > > > I have some of the files you need, dates are:
> > > > 
> > > > 4/4, 4/8, and 4/13.   Others are missing or expired.
> > > > 
> > > > Let me know the exact times for the above dates.
> > > > 
> > > > Robb...
> > > > 
> > > > > 
> > > > > date       missing
> > > > > ---------------------
> > > > > 20020401      0
> > > > > 20020402      1
> > > > > 20020403      0
> > > > > 20020404      5
> > > > > 20020405      0
> > > > > 20020406      0
> > > > > 20020407      0
> > > > > 20020408      4
> > > > > 20020409      0
> > > > > 20020410      0
> > > > > 20020411      0
> > > > > 20020412      0
> > > > > 20020413      1
> > > > > 20020414      0
> > > > > 20020415      1
> > > > > 20020416      4
> > > > > 
> > > > > Thanks,
> > > > > 
> > > > > Dave
> > > > > 
> > > > > 
> > > > > David Ahijevych
> > > > > Mesoscale and Microscale Meteorology Division
> > > > > National Center for Atmospheric Research
> > > > > (303)497-8922 (office)
> > > > > 
> > > > > On Thu, 29 Nov 2001, Robb Kambic wrote:
> > > > > 
> > > > > > On Thu, 29 Nov 2001, Richard Chinman wrote:
> > > > > > 
> > > > > > > David Ahijevych wrote:
> > > > > > > 
> > > > > > > > Richard (Chinman),
> > > > > > > >
> > > > > > > > Thanks for answering my question about the WSI contract.  And 
> > > > > > > > for the
> > > > > > > > updated info about the other UCAR groups' interest.
> > > > > > > >
> > > > > > > > I need to discuss this with Rit again, but we are still 
> > > > > > > > debating about WSI
> > > > > > > > NOWrad products for 2002.  I was concerned about MMM's 
> > > > > > > > acquisition rate
> > > > > > > > and the sometimes convoluted steps I took to acquire the 
> > > > > > > > products...
> > > > > > 
> > > > > > 
> > > > > > Dave,
> > > > > > 
> > > > > > If you can set up an LDM on one of your machines, then the products 
> > > > > > can be
> > > > > > sent directly to it.  Also since we are only receiving the 
> > > > > > composites, I
> > > > > > could store maybe a day or two of the data on the ingest machine as 
> > > > > > a
> > > > > > backup. It seems that your product gathering is more critical then 
> > > > > > the
> > > > > > others divisions that are receiving the data so I willing to work 
> > > > > > with
> > > > > > you this issue. 
> > > > > > 
> > > > > > Robb...
> > > > > > 
> > > > > > > > I was able to get a very complete set of products from Marshall 
> > > > > > > > Space
> > > > > > > > Flight Center's archive with little difficulty, compared to our 
> > > > > > > > Unidata
> > > > > > > > feed.  This may be due to technical factors, and/or my own 
> > > > > > > > errors in
> > > > > > > > downloading the products.
> > > > > > > 
> > > > > > > Dave,
> > > > > > > 
> > > > > > > That it is easier to get these data (products) easier from MSFC 
> > > > > > > than from the
> > > > > > > Unidata feed is troubling.  I wonder if the feed from WSI to MSFC 
> > > > > > > is any
> > > > > > > different than the feed from WSI to Unidata.  I suppose that what 
> > > > > > > MSFC does
> > > > > > > with the data is different, and optimized to produce the products 
> > > > > > > you've come
> > > > > > > to expect.  Maybe MSFC is willing to share their procedures.  In 
> > > > > > > any case,
> > > > > > > please talk with Robb Kambic about technical factors that may be 
> > > > > > > affecting
> > > > > > > your access.
> > > > > > > 
> > > > > > > Richard
> > > > > > > 
> > > > > > > >
> > > > > > > >
> > > > > > > > During the year, I downloaded the NOWrad products in real-time 
> > > > > > > > from two
> > > > > > > > places: MMM's LDM node, and a RAP anonymous FTP site.  RAP's 
> > > > > > > > FTP site
> > > > > > > > often had empty files in their product list, so MMM's LDM node 
> > > > > > > > became my
> > > > > > > > primary source.  (I had already mentioned this earlier to Celia 
> > > > > > > > at RAP).
> > > > > > > > In another case, several missing NOWrad products were acquired 
> > > > > > > > at a later
> > > > > > > > time after you specifically requested them from WSI.  (Although 
> > > > > > > > I never
> > > > > > > > figured out how to read those differently-formatted files.)  
> > > > > > > > Instead of
> > > > > > > > pursuing this, I ended up just using the MSFC archive.  It 
> > > > > > > > seems to fill
> > > > > > > > in our data gaps fairly well.
> > > > > > > >
> > > > > > > > In the end, although I have a fairly complete collection of 
> > > > > > > > NOWrad
> > > > > > > > products due to our contractual agreement with WSI, I used the 
> > > > > > > > MSFC
> > > > > > > > collection for our research.
> > > > > > > >
> > > > > > > > But things are not simple.  Will we have MSFC's archive in 
> > > > > > > > 2002?  That is
> > > > > > > > something Rit, MSFC, are still discussing.
> > > > > > > >
> > > > > > > > I will let you know as soon as possible what we decide about 
> > > > > > > > UCAR's
> > > > > > > > feed--hopefully today.
> > > > > > > >
> > > > > > > > Sincerely,
> > > > > > > > Dave
> > > > > > > >
> > > > > > > > David Ahijevych
> > > > > > > > Mesoscale and Microscale Meteorology Division
> > > > > > > > National Center for Atmospheric Research
> > > > > > > > (303)497-8922 (office)
> > > > > > > 
> > > > > > > 
> > > > > > 
> > > > > > ===============================================================================
> > > > > > Robb Kambic                            Unidata Program Center
> > > > > > Software Engineer III                          Univ. Corp for 
> > > > > > Atmospheric Research
> > > > > > address@hidden                 WWW: http://www.unidata.ucar.edu/
> > > > > > ===============================================================================
> > > > > > 
> > > > > 
> > > > > 
> > > > 
> > > > ===============================================================================
> > > > Robb Kambic                                Unidata Program Center
> > > > Software Engineer III                      Univ. Corp for Atmospheric 
> > > > Research
> > > > address@hidden             WWW: http://www.unidata.ucar.edu/
> > > > ===============================================================================
> > > > 
> > > 
> > > 
> > 
> > ===============================================================================
> > Robb Kambic                            Unidata Program Center
> > Software Engineer III                          Univ. Corp for Atmospheric 
> > Research
> > address@hidden                 WWW: http://www.unidata.ucar.edu/
> > ===============================================================================
> > 
> 
> 

===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================