[RegCNET] RegCM4.3 and horizontal resolution

[Pir S. Ali]

Dear  Ciao,

Thank you for kind suggestion,

with regards,
Ali

On Mon, Aug 13, 2012 at 2:04 AM, Graziano Giuliani <ggiulian at ictp.it> wrote:

> On 08/13/2012 10:13 AM, Pir S. Ali wrote:
> [...]
>
>> I have run RegCM4.3 with *horizontal resolution ds = 25.0* but ctlinfo
>> command in Grads show *0.11 degrees instead of 0.22*
>> xdef   892 linear   43.97  * 0.11*
>> ydef   502 linear    3.05   *0.11*
>>
>>  [...]
>
> The resolution set in the CTL file is NOT the original resolution of the
> RegCM output. The resolution set there are those of a regular lat/lon grid
> on which to INTERPOLATE the RegCM output ONLY FOR SMOOTH GRAPHICAL DISPLAY.
> The choice to set the display resolution to ~ half the original model
> resolution comes just from VISUAL CONSIDERATIONS of the GrADS produced
> plots, and goes back to regcm3.
> In my opinion, the GrADS plotting program should be considered just the
> SIMPLEST tool to use in post-processing the model output, as A NUMBER of
> other tools are available capable of reading netCDF files, and offer a
> BETTER AND MORE COMPLETE ENVIRONMENT to extract statistical numbers out of
> the raw model output data.
> The presence of GrADS helper programs in the PostProc directory is not a
> suggestion or worse requirement to use GrADS in the PostProc: they are
> there only because in the regcm3 days users were using GrADS, and a number
> of them still use it, and we keep on supporting the capability to read
> output file into GrADS.
> In my opinion, a LOT OF BETTER ENVIRONMENTS are available, and new users
> should check which one of those has the best tools to ease their scientific
> work, instead of struggling in the usage of the oversimple GrADS plotter.
>
> Ciao!
>
> --
> Graziano Giuliani - Earth System Physics Section
> The Abdus Salam International Centre for Theoretical Physics
> Strada Costiera, 11 - I - 34151 Trieste Italy
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>



-- 
Shaukat Ali

PhD Scholar
Institute of Atmospheric Physics, Chinese Academy of Sciences
40#Hua Yan Li, Qi Jia Huo Zi, Chao Yang District
Beijing 100029, China
Tel: +86-10-82995138
Mobile: 008613436344529

--------------------------------------------------------------

Scientific Officer (Climate Section)
Global Change Impact Studies Centre (GCISC)
National Centre for Physics (NCP) Complex
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http://www.gcisc.org.pk
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