[gradsusr] Azimuthally average

[Davide Sacchetti]

if you can approximate azimuthal average with a "mean of grid points
values near to your cell" - that is average on a square, not a round
-suppose your grid coordinate center was 100, 100
set x 100
set y 100
set lev 900 300
d mean(mean(mag(u,v),x=99,x=101),y=99,y=101)

hoping it could help
bye
Davide

On Wed, 2020-07-01 at 11:32 +0900, lpasmanoranjan wrote:
> Hello Davide,
> Thank you for your answer. I am so sorry for not explaining my
> question properly. 
> I am looking for the wind speed a location at each level but
> azimuthally. I am emphasizing azimuthally because wind blows at
> various speed from different directions around the location. So I
> need show the azimuthally averaged wind speed. 
> 
> On Wed, Jul 1, 2020 at 0:09 Davide Sacchetti <
> davide.sacchetti at arpal.liguria.it> wrote:
> > Sorry but I do not understand your question. Are you looking for
> > wind speed average between 900 and 300 hPa at a fixed location?
> > If this was the case:
> > 'set lev 900'
> > 'd mean(mag(u,v), lev=900, lev=300)'
> > 
> > bye bye
> > Davide
> > 
> > 
> > From: lpasmanoranjan <lpasmanoranjan at gmail.com> 
> > To: GrADS Users Forum <gradsusr at gradsusr.org> 
> > Sent: 6/29/2020 11:42 AM 
> > Subject: [gradsusr] Azimuthally average 
> > 
> > > Dear Users,
> > > I would like to plot a vertical profile of azimuthally average of
> > > a variable at a location. e.g.
> > > I have a grid data at 3 km resolution. 
> > > ‘set lat 21.5’ 
> > > ‘set lon 82.5’ 
> > > ‘set lev 900 300’
> > > ‘d azimuth_average(mag(u,v)’
> > > 
> > > Any suggestions or scripts, how to proceed in GrADS?
> > > 
> > > Thank you. 
> > > _______________________________________________
> > > gradsusr mailing list
> > > gradsusr at gradsusr.org
> > > http://gradsusr.org/mailman/listinfo/gradsusr



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