>To: address@hidden >From: Dave Aubin <address@hidden> >Subject: Variables/Parameters related to specific times ... >Organization: Boeing Information Services >Keywords: 199811241646.JAA23672 Hi Dave, > You were kind enough to answer this question for one of my compatriots > recently, but he is currently unavailable; I have to return to the > source. > > We do post flight data reduction for recorded 1553 data. This data is > asynchronous in the sense that a given parameter appears at a given > frequency (say, 20 times per second), but other parameters are posted at > some other frequency. > > We have created an elementary capability to produce a NetCDF file for > any given parameter. We are having trouble putting multiple parameters > in the same file. This asynchronous characteristic appears to be the > culprit. > > Would you suggest a site where we could derive an optimum solution to > posting asynchcronous data of this nature in a single NetCDF file? One solution is to use the conventions established at NCAR's Research Aviation Facility (NCAR-RAF): ftp://ftp.unidata.ucar.edu/pub/netcdf/Conventions/NCAR-RAF/nimbus/Conventions.TimeSeries ftp://ftp.unidata.ucar.edu/pub/netcdf/Conventions/NCAR-RAF/nimbus/MultiRate.cdl ftp://ftp.unidata.ucar.edu/pub/netcdf/Conventions/NCAR-RAF/nimbus/LowRate.cdl The replies I sent to Larry Bunch to answer a less-specific question about conventions for representing time in netCDF files are also still available in our email support archive, at http://www.unidata.ucar.edu/glimpse/netcdf/3183 http://www.unidata.ucar.edu/glimpse/netcdf/3182 --Russ _____________________________________________________________________ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu