[gradsusr] Diagnostics in Ctl File?

[Wesley.Ebisuzaki at noaa.gov]

Mason,

> difference is that they have also the inclusion of a 98cbar.gs script 

The nomads plotting package uses a modification of Jae Schemm's rgbset.gs
to set the color map.  In the modification, gray shades are defined and black is
set to value 98.  98cbar.bs would be a cbar which draws the lines using color 98.

     Wesley

----- Original Message -----
From: "Rowell, Mason D." <Mason.D.Rowell-1 at ou.edu>
Date: Friday, November 11, 2011 4:35 pm
Subject: Re: [gradsusr] Diagnostics in Ctl File?
To: GrADS Users Forum <gradsusr at gradsusr.org>


> Jeff and others,
> 
> Strange. This is exactly what was suggested in the ctl file near the 
> comments at the bottom (that which I pulled from nomads). The only 
> difference is that they have also the inclusion of a 98cbar.gs script 
> right after the other expressions like that in this link you gave me, 
> whose utility is a mystery since it is not necessary, at least 
> suggested as so by the cdiff documenation given that it is not 
> included. Perhaps it is just some coloring scheme. At any rate, the 
> script fails at the first line (which attempts to define dtx), with 
> each line coded exactly as it is shown (with the appropriate NARR temp 
> as TMPprs and wind as UGRDprs and VGRDprs of course). I assume it will 
> do so again at dty, and so forth. I originally didn't include define 
> with these since I thought they weren't necessary but adding that in 
> didn't solve the problem anyways. I suspect it is because cdiff calls 
> x, and since I define my domain with lat long, it doesn't have a x 
> variable to use? There definitely isn't a spacing issue this time...
> 
> Mason
> ________________________________
> From: gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] on 
> behalf of Jeff Duda [jeffduda319 at gmail.com]
> Sent: Thursday, November 10, 2011 11:11 AM
> To: GrADS Users Forum
> Subject: Re: [gradsusr] Diagnostics in Ctl File?
> 
> Mason,
> There is a good example of how to code temperature advection in the 
> page for the cdiff command: 
> The reason for all of the crazy manipulations is because the data 
> points on your grid are not uniformly spaced on the globe.  Thus 
> corrections have to be made to get the correct distance between 
> individual grid points.
> 
> Jeff
> 
> On Thu, Nov 10, 2011 at 11:00 AM, Wesley Ebisuzaki 
> <Wesley.Ebisuzaki at noaa.gov<>> wrote:
> Mason,
> 
> I think that you've discovered the "private" commands used by nomads
> plot software for defining new variables
> and custom plots.   The nomads plot package is a wrapper for GrADS.  It
> has the ability to run grads .gs files that
> are embedded within the ctl files.
> 
> 
> 
> 
> Ask NCDC for a copy of the .gs files.
> 
> > Has anyone done this before with grads?
> How do you expect the developers to debug the scripts?
> 
>     Wesley
> 
> 
> 
> Rowell, Mason D. wrote:
> > All,
> >
> > I noticed ample comments toward the end of the ctl files available 
> on the nomads servers from the NARR page, with a description of how to 
> implement these in grads scripting. I tried to take this to plot 
> temperature advection but it didn't work, b/c the last line of the 
> comments calls for some function never provided. Has anyone done this 
> before with grads?
> >
> > Mason
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org<>
> > 
> >
> 
> _______________________________________________
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> 
> 
> 
> 
> --
> Jeff Duda
> Grad student - PhD, Meteorology
> University of Oklahoma School of Meteorology - Center for Analysis and 
> Prediction of Storms
> 
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