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[IDV #GRJ-802576]: float tracks in idv

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  • Subject: [IDV #GRJ-802576]: float tracks in idv
  • Date: Wed, 28 Jul 2010 21:52:21 -0600
> Hi,
> I am an oceanographer using IDV for visualizing output from the Regional
> Ocean Modeling System (ROMS). The model has provision for float
> tracking, with float files output in netcdf format (which I then subset
> using tools like Ferret). These used to be readable by idv as a "track
> file" (specifically, by version 2.7u2), but the latest version (e.g.
> 2.9) will not read them as a track file, or any other sort of file. Is
> there some trick to using these with the latest release? Below is an
> ncdump of the header information from a file which worked with 2.7u2.
> Thanks for any guidance.
> -Al Hermann

Albert,
   Could you upload a sample file:

http://motherlode.ucar.edu/repository/alias/idvupload 

Yuan
> 
> > netcdf testfloat10 {
> > dimensions:
> >         DRIFTER1_10 = 10 ;
> >         TIME = UNLIMITED ; // (7296 currently)
> > variables:
> >         double DRIFTER1_10(DRIFTER1_10) ;
> >                 DRIFTER1_10:point_spacing = "even" ;
> >                 DRIFTER1_10:AXIS = "X" ;
> >         double TIME(TIME) ;
> >         float LON(TIME, DRIFTER1_10) ;
> >                 LON:missing_value = 1.e+35f ;
> >                 LON:_FillValue = 1.e+35f ;
> >                 LON:long_name = "longitude of floats trajectories" ;
> >                 LON:history = "From cgoa3_flt_40m" ;
> >                 LON:units = "degree_east" ;
> >         float LAT(TIME, DRIFTER1_10) ;
> >                 LAT:missing_value = 1.e+35f ;
> >                 LAT:_FillValue = 1.e+35f ;
> >                 LAT:long_name = "latitude of floats trajectories" ;
> >                 LAT:history = "From cgoa3_flt_40m" ;
> >                 LAT:units = "degree_north" ;
> >         float DEPTH(TIME, DRIFTER1_10) ;
> >                 DEPTH:missing_value = 1.e+35f ;
> >                 DEPTH:_FillValue = 1.e+35f ;
> >                 DEPTH:long_name = "depth of floats trajectories" ;
> >                 DEPTH:history = "From cgoa3_flt_40m" ;
> >                 DEPTH:units = "meter" ;
> >         float TEMP(TIME, DRIFTER1_10) ;
> >                 TEMP:missing_value = 1.e+35f ;
> >                 TEMP:_FillValue = 1.e+35f ;
> >                 TEMP:long_name = "potential temperature" ;
> >                 TEMP:history = "From cgoa3_flt_40m" ;
> >                 TEMP:units = "Celsius" ;
> >         float SALT(TIME, DRIFTER1_10) ;
> >                 SALT:missing_value = 1.e+35f ;
> >                 SALT:_FillValue = 1.e+35f ;
> >                 SALT:long_name = "salinity" ;
> >                 SALT:history = "From cgoa3_flt_40m" ;
> >                 SALT:units = "PSU" ;
> >
> > // global attributes:
> >                 :history = "FERRET V5.51    3-Jan-05" ;
> > }
> 
> 


Ticket Details
===================
Ticket ID: GRJ-802576
Department: Support IDV
Priority: Normal
Status: Open