[gradsusr] regriding daily data to pentadal

[Muhammad Rahiz]

OK - regridding in time dimension. I was thinking of spatial 
regridding...

-- 
Muhammad Rahiz
Researcher & DPhil Candidate (Climate Systems & Policy)
School of Geography & the Environment
University of Oxford

On Wed, 23 Feb 2011, Jennifer Adams wrote:

> Hi, Ismaila, 
> This is basically a regridding operation in the time dimension. The only way to do this is
> the brute-force method of stepping through your daily time series, averaging five time steps
> together, and writing out the results to a new data file. You will have to decide what to do
> with the extra day in the case of a leap year. Your script might look something like this: 
> 
> 'set gxout fwrite'
> 'set fwrite -ap pentad.bin'
> tlast=365
> t=1
> while (t<tlast)
>   'set t 't
>   'd ave(var,t+0,t+4)'
>   t=t+5
> endwhile
> 'disable fwrite'
> 
> --Jennifer
> 
> 
> On Feb 22, 2011, at 8:00 AM, Ismaila Diallo wrote:
>
>       Dear grads user,
>       I have daily data in netcdf format and i went to transform them in pentadal data
>       (cumul for every 5 day : example 1to 5, 6 to 10 ....). Does it a way for doing
>       these transformation in grads.
>       all suggestions are welcome.
>       Thanks in advance
>       ismaila
> 
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> 
> --
> Jennifer M. Adams
> IGES/COLA
> 4041 Powder Mill Road, Suite 302
> Calverton, MD 20705
> jma at cola.iges.org
> 
> 
> 
> 
>