Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
I believe the first value is the size of the packet. The second number is the sequence number from the radar I think. On Wed, Aug 14, 2019 at 7:10 PM Kevin W. Thomas <kwthomas@xxxxxxxxxxxxxxxxxx> wrote: > Evan... > > NEXRAD2 data arrives in a modified BZIP2 format. If I recall correctly, > it is in groups of 100 radials that are compressed though the number may > have changed over the years. > > There is just too much data to send not compressed, and this was well > before dual pol. > > I did some benchmark tests *many* years ago. Back then, space saving was > on > the order of 85%, though this was probably without much precip. > > Sites may or may not decompress the data before writing. CAPS writes it > compressed, as our ARPS software decompresses it on the fly. > > To answer your question, one number is probably the compressed size and > the other thd decompressed size. > > Kevin W. Thomas > Center for Analysis and Prediction of Storms > University of Oklahoma > Norman, Oklahoma > Email: kwthomas@xxxxxx > > >ldm@dallas-tx-1:~$ ldmadmin watch 2>&1 | grep NEXRAD2 > >20190814T194054.858618Z pqutil[30750] > >pqutil.c:display_watch() INFO 79987 20190814184136.177460 NEXRAD2 > >591026 L2-BZIP2/KCXX/20190814183810/591/26/I/V06/0 > > > >In the above output, what is the significance of 79987 and 591026. Is one > >the file size, or both together comprise the filesize? Offset? I would > >appreciate any insight here. > > _______________________________________________ > 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: > https://www.unidata.ucar.edu/mailing_lists/ > -- “The presence of those seeking the truth is infinitely to be preferred to the presence of those who think they’ve found it." -- Terry Prachett ------------------------------------------- Karen.Cooper@xxxxxxxx Phone#: 405-325-6456 Cell: 405-834-8559 National Severe Storms Laboratory
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