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We do a similar OpenDAP-related pull (using Python and the NetCDF4 library) from NOMADS for the HRRR and have noticed oddities for quite a while. Typically the files pass the "existence" test, in that no errors are detected either when the NetCDF4 library creates a file handle to the remote file, nor does the loading of data into an array for a particular variable (e.g., 1km AGL reflectivity) fail, but the displayed graphic is *blank*. Similar to Brendon, there is no pattern to the dropouts. --Kevin _____________________________________________ Kevin Tyle, Manager of Departmental Computing Dept. of Atmospheric & Environmental Sciences University at Albany Earth Science 235, 1400 Washington Avenue Albany, NY 12222 Email: ktyle@xxxxxxxxxx Phone: 518-442-4578 _____________________________________________ -----Original Message----- From: ldm-users-bounces@xxxxxxxxxxxxxxxx [mailto:ldm-users-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Brendon Hoch Sent: Tuesday, October 18, 2016 8:24 AM To: Patrick L. Francis <wxprofessor@xxxxxxxxx>; Karen Cooper - NOAA Affiliate <karen.cooper@xxxxxxxx> Cc: LDM <ldm-users@xxxxxxxxxxxxxxxx>; NOAAPORT <noaaport@xxxxxxxxxxxxxxxx>; nws.noaaport.support@xxxxxxxx Subject: Re: [ldm-users] NOAAPort HRRR Patrick, We've noticed occasional oddities in generating HRRR products with NCL via Opendap to NOMADS. We generate a map showing 2m Temperatures & SLP/Radar Reflective. Most of the time it works, but occasionally, one or more parameters are either missing or misbehaving. Last week, I started an archive of products at http://vortex.plymouth.edu/mapwall/hrrr/archive/ to discern if there was a pattern as to when this might be happening, but so far, no luck; products with a file size of < 674 KB are suspect. We run our script with a 3 hour lag, which should (theoretically) be plenty of time for the model data to arrive to NOMADS. Brendon -- Brendon Hoch, M.S. MSC 48, Boyd Science Center 319 Plymouth State University Plymouth, NH 03264 (603)535-2818 Fax: (603)535-2723 Patrick L. Francis wrote: > > Last week I mentioned product delivery issues for HRRR, all day today > it has been HRRR .... as an example, here is a gempak GDINFO (for > non-gempak people... listing all variables within a grid) by forecast > hour for the most recent HRRRR: > > http://modelweather.com/files/grids/noaaport/hrrr/2016/10/17z/ > > notice how none of the file names are the same size.. and they all > should be (usually around 6.6K for F000 and 6.8K for F### and gempak > usually finds 81 grids or so :( > > Does anyone happen to know how long this will continue? > > cheers, > > --patrick > > --------------------------------------------------- > Patrick L. Francis > Vice President of Research & Development AerisWeather.com > > wxprofessor@xxxxxxxxx <mailto:wxprofessor@xxxxxxxxx> > facebook.com/wxprofessor/ > --------------------------------------------------- > >>> >> > > >> >>> > > > _______________________________________________ > 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/ > _______________________________________________ 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/
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