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[IDV #IQR-639012]: Trajectories in NCDF format

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  • Subject: [IDV #IQR-639012]: Trajectories in NCDF format
  • Date: Fri, 02 May 2014 10:49:19 -0600
Adam,

Can you upload your data here and let us know when it is uploaded?

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

Best,

Unidata IDV Support

> Full Name: Adam Houston
> Email Address: address@hidden
> Organization: University of Nebraska - Lincoln
> Package Version: 4.1
> Operating System: CentOS
> Hardware:
> Description of problem: I'm unable to get IDV to recognize NCDF trajectory 
> files that I'm creating.  I've verified that IDV recognizes a "track.nc" file 
> available in one of the workshop packages but neither my own single 
> trajectory file nor my own multiple trajectory file (this is what I really 
> need to visualize) can be read.  To the best of my knowledge I'm adhering to 
> the CF Version 1.6 conventions (I've tested them in an online compliance 
> checker).  I've included both headers below.
> 
> netcdf \2007finalinfo {
> dimensions:
> time = 6 ;
> trajid_strlen = 1 ;
> variables:
> char trajectory(trajid_strlen) ;
> trajectory:cf_role = "trajectory_id" ;
> int time(time) ;
> time:standard_name = "time" ;
> time:long_name = "time" ;
> time:units = "seconds since 1970-01-01 00:00:00" ;
> float lat(time) ;
> lat:standard_name = "latitude" ;
> lat:long_name = "latitude" ;
> lat:units = "degrees_north" ;
> float lon(time) ;
> lon:standard_name = "longitude" ;
> lon:long_name = "longitude" ;
> lon:units = "degrees_east" ;
> float z(time) ;
> z:standard_name = "altitude" ;
> z:long_name = "height above mean sea level" ;
> z:units = "m" ;
> 
> // global attributes:
> :featureType = "trajectory" ;
> :Conventions = "CF-1.6" ;
> }
> 
> ==== Multiple trajectories ====
> 
> netcdf \2007finalinfo {
> dimensions:
> obs = 28067 ;
> trajectory = 3252 ;
> trajid_strlen = 4 ;
> variables:
> char trajectory(trajectory, trajid_strlen) ;
> trajectory:cf_role = "trajectory_id" ;
> int rowSize(trajectory) ;
> rowSize:long_name = "number of obs for this trajectory" ;
> rowSize:sample_dimension = "obs" ;
> int time(obs) ;
> time:standard_name = "time" ;
> time:long_name = "time" ;
> time:units = "seconds since 1970-01-01 00:00:00" ;
> float lat(obs) ;
> lat:standard_name = "latitude" ;
> lat:long_name = "latitude" ;
> lat:units = "degrees_north" ;
> float lon(obs) ;
> lon:standard_name = "longitude" ;
> lon:long_name = "longitude" ;
> lon:units = "degrees_east" ;
> float z(obs) ;
> z:standard_name = "altitude" ;
> z:long_name = "height above mean sea level" ;
> z:units = "m" ;
> 
> // global attributes:
> :featureType = "trajectory" ;
> :Conventions = "CF-1.6" ;
> }
> 
> 
> 


Ticket Details
===================
Ticket ID: IQR-639012
Department: Support IDV
Priority: Normal
Status: Open