[gradsusr] Problem to plot a figure in GrAds from gaussian latitude grid

[Jeff Duda]

Jose,
Have you tried using other numbers that are similar to 73.9475 but have
fewer digits?  It sounds like some odd parsing error.

Jeff Duda

On Thu, Dec 22, 2011 at 4:11 PM, Jose Augusto Paixão Veiga <
veiga.uea at gmail.com> wrote:

> Dear all,
>
> I am facing the following problem in GrAds:
>
> After producing my CTL file and plotted the results I get surprised with
> plot result (Figure in attach).   Note that the fifth point from the last
> latitude is shifted for the equatorial latitude. So, I decided to use the
> command q ctlinfo to get some information about the latitudes ingested by
> GrAds after I've been opened the CTL file. Them, I realize that GrAds
> "make" some confusing with one specific latitude point.   Pay attention,
>
> This is a part of the result from the command q ctlinfo :
>
> xdef 1 linear 1 1
> ydef 64 levels -87.8638 -85.0965 -82.3129 -79.5256 -76.7369 -73.9475
> -71.1577 -68.3678
>  -65.5776 -62.7873 -59.997 -57.2066 -54.4162 -51.6257 -48.8352 -46.0447
> -43.2542 -40.4636
>  -37.6731 -34.8825 -32.0919 -29.3014 -26.5108 -23.7202 -20.9296 -18.139
> -15.3484 -12.5578
>  -9.76715 -6.97653 -4.18592 -1.39531 1.39531 4.18592 6.97653 9.76715
> 12.5578 15.3484
>  18.139 20.9296 23.7202 26.5108 29.3014 32.0919 34.8825 37.6731 40.4636
> 43.2542
>  46.0447 48.8352 51.6257 54.4162 57.2066 59.997 62.7873 65.5776 68.3678
> 71.1577
>  *73 0.9475* 76.7369 79.5256 82.3129 85.0965
> zdef 1 linear 1 1
>
> Thus, GrAds separates one latitude value into two others. I told this
> because the latitude point 73.9475 is duplicated into the points *73* and
> *0.9475*. When I change the value for the integer 73 everything goes well
> and the value is not shifted for the "center of figure". However I wouldn't
> like to to this all the time I face this.
>
> I would appreciate any hint and help.  I don't know what is producing this
> split in the latitude value.
>
>
> *This is part of my ctl file *
>
> title CNRM  model output prepared for IPCC Fourth Assessment climate of
> the 20th Century experiment (20C3M)
> xdef 1 linear 1 1
> ydef   64 levels -87.8638 -85.0965 -82.3129 -79.5256 -76.7369 -73.9475
> -71.1577 -68.3678 -65.5776 -62.7873 -59.997 -57.2066 -54.4162 -51.6257
> -48.8352 -46.0447 -43.2542 -40.4636 -37.6731 -34.8825 -32.0919 -29.3014
> -26.5108 -23.7202 -20.9296 -18.139 -15.3484 -12.5578 -9.76715 -6.97653
> -4.18592 -1.39531 1.39531 4.18592 6.97653 9.76715 12.5578 15.3484 18.139
> 20.9296 23.7202 26.5108 29.3014 32.0919 34.8825 37.6731 40.4636 43.2542
> 46.0447 48.8352 51.6257 54.4162 57.2066 59.997 62.7873 65.5776 68.3678
> 71.1577 73.9475  76.7369 79.5256 82.3129 85.0965 87.8638
> zdef 1 linear 1 1
> tdef 252 linear JAN1979 1MO
> vars  17
> gz 0 33,100 generation of available potential energy
>
>
> Cheers,
>
>
> José Augusto P. Veiga,
>
> ======================================
> Universidade do Estado do Amazonas
> Departamento de Meteorologia
> Escola Superior de Tecnologia (EST)
>
> -----------------------------------------------------------------------------
> Av. Darcy Vargas, 1200, Manaus-AM Brasil
> Work phone:    (92) 3878 4333
> Skype: veiga_j.a.p.
>
> -----------------------------------------------------------------------------
> CV: http://lattes.cnpq.br/4027612512091565
> URL:http://scientificmet.wordpress.com/
> http://nmet.wordpress.com/
>
> -----------------------------------------------------------------------------
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>


-- 
Jeff Duda
Graduate research assistant
University of Oklahoma School of Meteorology
Center for Analysis and Prediction of Storms
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20111222/be4cb041/attachment-0003.html