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[IDV #GAI-830760]: Is there a 'turnkey' application that displays trajectory plots?

Jim,

Good timing.

As of IDV 5u1 which will be release this week, the IDV can now handle multiple
trajectories in one CF-compliant file. When wanting to view these data, select a
Data Source Type of "Trajectory Sounding Files".  You will have to build the
trajectory file in a CF compliant manner as described here:
http://www.unidata.ucar.edu/blogs/developer/en/entry/ipynb_cookbooks_to_create_cf.

This new IDV functionality should still be considered beta quality and there
could very well still be problems. Please keep us up-to-date on your progress.

Best,

Unidata IDV Support


> Jim
> 
> We plot trajectories here.
> 
> http://www.esrl.noaa.gov/psd/cgi-bin/data/trajtool/traj.pl
> 
> We use Fortran code to calculate the trajectories, stored the output in
> nertCDF and then use a NCL script to plot them. The script works pretty
> well (except where trajectories pass over 0E). We looked into CF complaint
> netCDF trajectories standard a while back but didn't implement them. Part
> of the reason was that the code output into it's own netCDF format. Still,
> we could have reread and stored the data. I think we would have needed to
> change how time was handled. Also, times went backward for back
> trajectories and we weren't clear if that was okay.
> 
> We may try to transition to CF at some point.
> 
> Cathy Smith
> 
> 
> On 8/6/14 8:42 AM, Jim Biard wrote:
> 
> Hi.
> 
> We are working on building a CF-compliant trajectory dataset. I'd like to
> be able to verify correctness by using an existing application to plot the
> trajectories, but I can't seem to find any applications that are
> "trajectory aware".  Any suggestions?
> 
> Grace and peace,
> 
> Jim
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Ticket Details
===================
Ticket ID: GAI-830760
Department: Support IDV
Priority: Normal
Status: Closed