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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Adam, How is this trajectory file created? I have been looking at your trajectory file, and I am not sure why it is not working. The underlying library in the IDV is complaining about: - not finding Latitude coordinate - not finding Longitude coordinate - lat/lon/time coord not found. But I am wondering if track.nc is the best template for a trajectory. Theoretically, this one should be better: https://geo-ide.noaa.gov/wiki/index.php?title=NODC_NetCDF_Trajectory_Template Can you try adhering to their suggestions? I am going to investigate on my end to ensure this is a better template. Best, Unidata IDV Support > The files have been uploaded: a single trajectory ncdf file and a multiple > trajectory ncdf file. > > - Adam > > > -----Original Message----- > From: Unidata IDV Support [mailto:address@hidden] > Sent: Friday, May 02, 2014 10:49 AM > To: Adam Houston > Cc: address@hidden > Subject: [IDV #IQR-639012]: Trajectories in NCDF format > > 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 > > Ticket Details =================== Ticket ID: IQR-639012 Department: Support IDV Priority: Normal Status: Open