[gradsusr] How to get the Sum of variable (not spatially) for all region
Davide Sacchetti
davide.sacchetti at arpal.gov.it
Mon Sep 26 06:14:07 EDT 2011
if you are interested on precipitation, the precipitation over an area
is just a number, that could be:
1) the mean height
2) the volume (volume = meanHeight * sufrace)
meanHeight = aave(precipitation,lon=..., lon=...,lat=...,lat=...)
where precipitation is your annual precipitation
bye bye
Davide
On Mon, 2011-09-26 at 02:46 -0700, Rafanoharana Serge Claudio wrote:
> Dear all,
>
> I have monthly data of one year. I used 'define new=sum(var,t=1,t=12)'
> then I obtain the sum of the spatial distribution for one year. This
> is more "in this point/coordinate, the annual precipitation is xxx mm"
>
> But what I need is the total (sum) of the value of the variable.
> Something like: "In this area of 500km2, the annual precipitation is
> xxx mm".
>
> Is it possible to obtain that?
>
> Best regards
>
> --
> Serge
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--> Attenzione cambio indirizzo: davide.sacchetti at arpal.gov.it
--
Davide Sacchetti
Centro Funzionale Meteo Idrologico di Protezione Civile della Regione Liguria
ARPAL Unità Tecnica Complessa di livello Regionale
V.le Brigare Partigiane 2 16121 Genova (I)
tel: +39 010 6437535 fax: +39 010 6437520
mail: davide.sacchetti at arpal.gov.it web: www.meteoliguria.it
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