[gradsusr] daily climo akin to monthly climo?

[krishnamohan]

I have asked a similar question some time ago in grads user forum. The link
is given below

http://gradsusr.org/pipermail/gradsusr/2010-December/012072.html

and the answer from Jennifer Adams, IGES/COLA is quoted below

"The 'modify' command does not calculate a daily climatology, and there is
no way to do that directly in GrADS. You must use your own code and make
decisions about how to handle leap days, filtering, and other
complications."


-- 
Krishnamohan.K.S
CSIR Research Fellow
Department Of Atmospheric Sciences
Cochin University of Science and Technology
Cochin,India




On Tue, Oct 16, 2012 at 10:48 PM, Muthuvel Chelliah <
muthuvel.chelliah at noaa.gov> wrote:

> Dear Grads Gurus,
>
> Here is something to ponder.
> In grads if we have long monthly data, we all know
> we can compute monthly climo by, for example,
>
> set t 1 12
> define monclimo=ave(monthlydata,t+0,t=N,12)
> set t 1 N
> modify monclimo seasonal.
>
> In the same way, if I want to compute a quick and dirty daily climo,
> and if had daily data for many years, I did,
>
> set t 1 365
> define dailyclimo=ave(dailydata,t+0,t=M,365)
>
> the above step works, and the values look correct.
> But the following step does not work!!
>
> modify dailyclimo seasonal
>
> It says:
> MODIFY Error:  Invalid time scaling in defined variable
>
> Any ideas/suggestions? or is this not possible to do :-(
>
> Thanks in advance!!
>
> Muthu
> --
>
> ------------------------------------------------------------------
> Dr.Muthuvel Chelliah, eMail:Muthuvel.Chelliah at noaa.gov
>
>
> Rm.3008, Climate Prediction Center, Ph:(301) 683-3393
> NCEP/NWS/NOAA/U.S.Dept.of Commerce,
> 5830, University Research Court, NCWCP
> College Park, MD 20740.
>
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20121017/9bdd6938/attachment-0003.html