Using traj.gs

[Jason Snyder]

I still get the same message about hours or  minute missing in TDEF.


Jason

On Sun, Jan 24, 2010 at 4:57 PM, James T. Potemra <jimp at hawaii.edu> wrote:

> You have to change the TDEF line to be either HR or MN.
> Right now you have 1dy; make it 24HR.
>
> Jim
>
> Jason Snyder wrote:
>
>>
>>
>> On Sun, Jan 24, 2010 at 4:16 PM, Jason Snyder <jmssnyder at ucdavis.edu<mailto:
>> jmssnyder at ucdavis.edu>> wrote:
>>
>>    I tried running traj.gs <http://traj.gs/> again after displaying a
>>
>>    map and I got the following message:
>>        ga-> d U;V
>>    ga-> traj.gs <http://traj.gs/>
>>
>>    HR or MN missing in line TDEF of file uninan.ctl
>>    ga->
>>    Here is an example of a .ctl file I have for the zonal wind part
>>    of my data:
>>        DSET uninan2.nc <http://uninan2.nc/>
>>
>>    OPTIONS template
>>    DTYPE netcdf
>>    XDEF longitude 57 linear 110.0 2.5
>>    YDEF latitude 39 linear -5 2.5
>>    TDEF time 1 linear 0z1Jun1974 1dy 0hr 0mn
>>    How do I modify this file so I can succesfuuly run traj.gs
>>    <http://traj.gs/>?
>>
>>        Thanks,
>>        Jason
>>    On Sun, Jan 24, 2010 at 2:59 PM, James T. Potemra <jimp at hawaii.edu
>>    <mailto:jimp at hawaii.edu>> wrote:
>>
>>        Jason:
>>
>>        The script requires that you first display a variable (it uses
>>        the GrADS query function to get plot dimensions).  If you
>>        don't want to actually display something "under" your
>>        trajectory, you can "set cmin" to something larger than U
>>        and/or V, then display U and/or V, then run traj.gs
>>        <http://traj.gs/>
>>
>>
>>        Jim
>>
>>        Jason Snyder wrote:
>>
>>            I am trying to open up two files one with a zonal wind
>>            componant and the other with the meridional wind componant
>>            to use to make a trajectory via traj.gs <http://traj.gs/>
>>            <http://traj.gs <http://traj.gs/>> script.
>>
>>
>>             Here is the .ctl file for the zonal wind:
>>             DSET uwndavg2001.nc <http://uwndavg2001.nc/>
>>            <http://uwndavg2001.nc <http://uwndavg2001.nc/>>
>>
>>
>>            OPTIONS template
>>            DTYPE netcdf
>>            XDEF longitude 144 linear 0.0 2.5
>>            YDEF latitude 73 linear -90 2.5
>>            TDEF time 1 linear 0z1Jan2001 1dy
>>             Here is the .ctl file for the meridional wind:
>>             DSET vwndavg2001.nc <http://vwndavg2001.nc/>
>>            <http://vwndavg2001.nc <http://vwndavg2001.nc/>>
>>
>>
>>            OPTIONS template
>>            DTYPE netcdf
>>            XDEF longitude 144 linear 0.0 2.5
>>            YDEF latitude 73 linear -90 2.5
>>            TDEF time 1 linear 0z1Jan2001 1dy
>>             The variables for both are U and V respectively.  However
>>            since the meridional file is open second the meridional
>>            wind becomes defined as V.2.  Therefore, I have to
>>            redefine V=V.2.  However when I run GrADS script traj.gs
>>            <http://traj.gs/> <http://traj.gs <http://traj.gs/>> I get
>>
>>            the following message:
>>
>>              Please open file and draw a chart
>>             How can I avoid this message and run traj.gs
>>            <http://traj.gs/> <http://traj.gs <http://traj.gs/>>
>>            successfully?
>>             Thanks,
>>             Jason
>>
>>
>>
>>
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