[gradsusr] csmooth working on contours but not shaded fields?

[Jeff Duda]

L.B.,
Another thing you could try if all you want is nicer looking contours in
your plots is to obtain a dummy data set that has a different resolution
(e.g., RAP, NAM, NARR etc., anything available on the NOMADS sites), then
use lterp to regrid your GFS data to a different grid quickly and easily.
 This would make the contours take on different shapes in your GFS data.  I
think you would want to regrid to a finer grid, but I'm not 100% sure on
that.  Try it for a few other data sets and see if you can find something
that is to your liking.

Jeff


On Thu, Dec 19, 2013 at 1:05 PM, L.B. <bcbass2989 at gmail.com> wrote:

> Jennifer,
>
> I tried that option, and while it made the contour lines match the shaded
> regions, it adjusted the contour lines to the shaded regions. I would like
> the shaded regions to match the smoothed contours. Maybe it is not
> possible, I am not sure.
>
> *William (L.B.) LaForce*
> Meteorologist
> Central Michigan University '13
> www.tornadoinsanity.com
>
>
> On Thu, Dec 19, 2013 at 12:43 PM, Jennifer Adams <jma at cola.iges.org>wrote:
>
>> I believe you need 'set cterp off' to get the shaded and line contours to
>> align exactly. --Jennifer
>>
>>
>> On Dec 18, 2013, at 9:32 PM, L.B. wrote:
>>
>> Hello, I am currently using GrADS version 2.0.1 (32-bit) in Linux, and
>> have been having an issue with the csmooth option.
>>
>> I can plot contours with the csmooth option on, and notice they are
>> smoother, but this does not happen with the shaded fields. I have attached
>> an image where I have the csmooth option 'on' for both a shaded field and
>> contours. You will notice the difference as the contour field is slightly
>> smoother than the shaded field. Both the shaded field and the contours have
>> the same interval. Here is a snippet of the code I am running:
>>
>> 'set gxout shade2b'
>> 'set csmooth on'
>> 'd sum((APCPsfc*CFRZRsfc)/25.4,t=1,t+0,2)'
>> 'run xcbar 0.2 10.0 0.5 0.7 -line on -fw 0.08 -fh 0.09 -fs 2 -fo 0'
>>
>> 'set gxout contour'
>> 'set csmooth on'
>> 'set clab off'
>> 'set cint 0.01'
>> 'set cmin 0.01'
>> 'set cmax 0.09'
>> 'd sum((APCPsfc*CFRZRsfc)/25.4,t=1,t+0,2)'
>>
>> Also, I have tried using the smth9() function, but that smooths the field
>> way too much and greatly reduces the values. This is for use on GFS data,
>> and it looks ugly with the sharp corners and whatnot around grid points.
>>
>> Any Suggestions? Thanks.
>>
>> *William (L.B.) LaForce*
>> Meteorologist
>> Central Michigan University '13
>> www.tornadoinsanity.com
>>  <shaded_contours.png>_______________________________________________
>> gradsusr mailing list
>> gradsusr at gradsusr.org
>> http://gradsusr.org/mailman/listinfo/gradsusr
>>
>>
>>  --
>> Jennifer M. Adams
>> Center for Ocean-Land-Atmosphere Studies (COLA)
>> 111 Research Hall, Mail Stop 2B3
>> George Mason University
>> 4400 University Drive
>> Fairfax, VA 22030
>>
>>
>>
>>
>>
>>
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>
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-- 
Jeff Duda
Graduate research assistant
University of Oklahoma School of Meteorology
Center for Analysis and Prediction of Storms
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